Skip Nav Destination
Close Modal
Search Results for
mechanical properties
Update search
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
NARROW
Format
Topics
Subjects
Article Type
Volume Subject Area
Date
Availability
1-20 of 3789
Search Results for mechanical properties
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
1
Sort by
Proceedings Papers
Dynamical Mechanical Analysis of the Mechanical Properties of Al- and Fe-Based Thermal Spray Coatings
Available to Purchase
ITSC 2001, Thermal Spray 2001: Proceedings from the International Thermal Spray Conference, 999-1002, May 28–30, 2001,
... Abstract Static mechanical properties such as Young's Modulus, Yield Stress and Ultimate Tensile Strength and especially fatigue behavior are important material properties for thermal spray coatings and their industrial application in automotive and aerospace industry. The static and dynamic...
Abstract
View Papertitled, Dynamical <span class="search-highlight">Mechanical</span> Analysis of the <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Al- and Fe-Based Thermal Spray Coatings
View
PDF
for content titled, Dynamical <span class="search-highlight">Mechanical</span> Analysis of the <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Al- and Fe-Based Thermal Spray Coatings
Static mechanical properties such as Young's Modulus, Yield Stress and Ultimate Tensile Strength and especially fatigue behavior are important material properties for thermal spray coatings and their industrial application in automotive and aerospace industry. The static and dynamic mechanical properties of Al-Si, Al-Sn, Fe-Cr and Fe-Cr-B based coating materials deposited by APS, TWAS and HVOF were investigated by nanoindentation and in a three point bending test using DMA (Dynamic Mechanical Analysis). This method permits the determination of pure coating material static and dynamic mechanical properties without substrate influence over a wide temperature range. In this investigation all measurements were carried out at room temperature. The DMA method was verified by comparison of Young's modulus to those obtained by nanoindentation.
Proceedings Papers
Characterization of Mechanical Properties of TBCs via a Taguchi Experimental Design
Available to Purchase
ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1211-1217, May 8–11, 2000,
... on the mechanical properties of plasma sprayed thermal barrier coatings has been examined. Two experimental matrices; (i) a four by nine according to a Taguchi experimental design, and (ii) a four by seventeen according to a full factorial design of the experiment, were developed. Six samples from each group were...
Abstract
View Papertitled, Characterization of <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of TBCs via a Taguchi Experimental Design
View
PDF
for content titled, Characterization of <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of TBCs via a Taguchi Experimental Design
Experimental designs have been used by the thermal spray community to improve and optimize spray parameters to produce coatings with desired properties. The influence of four spray parameters including top and bond coat thicknesses, substrate temperature, and spray distance on the mechanical properties of plasma sprayed thermal barrier coatings has been examined. Two experimental matrices; (i) a four by nine according to a Taguchi experimental design, and (ii) a four by seventeen according to a full factorial design of the experiment, were developed. Six samples from each group were tested using a four point bend arrangement. Yield strength and elastic modulus were calculated from the four point bend test. A multi-linear regression analysis on yield strength and elastic modulus values from each experimental matrix was carried out to determine the influence of each spray parameter on these properties. The multi-linear regression analysis results for these two experimental matrixes are compared.
Proceedings Papers
Synthesis, Thermo-Mechanical Properties, and Frictional Response of NiCrAlY-Zirconia Composite and Graded Coatings
Available to Purchase
ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1227-1232, May 8–11, 2000,
... properties of PSZ could be successfully optimized by an addition of small amount of NiCrAlY. The results of testing revealed the potential of ceramic/metallic materials systems and can be used to further optimize the spraying process of composite/graded structures subjected to contact damage at high...
Abstract
View Papertitled, Synthesis, Thermo-<span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span>, and Frictional Response of NiCrAlY-Zirconia Composite and Graded Coatings
View
PDF
for content titled, Synthesis, Thermo-<span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span>, and Frictional Response of NiCrAlY-Zirconia Composite and Graded Coatings
NiCrAlY-PSZ graded materials with two different gradients were synthesized using the plasma spray technique. Their microstructure, thermal and frictional response were evaluated, and the response was compared to that of single layered composite materials. The hardness and frictional properties of PSZ could be successfully optimized by an addition of small amount of NiCrAlY. The results of testing revealed the potential of ceramic/metallic materials systems and can be used to further optimize the spraying process of composite/graded structures subjected to contact damage at high temperatures. The study also revealed new tribo-effects that can be encountered in potential applications of graded structures.
Proceedings Papers
Investigation on Microstructural Characteristics and Mechanical Properties of Thermally Sprayed Fe-Base Composites Reinforced with Different Ceramic Particulates
Available to Purchase
ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 122-130, May 24–28, 2021,
... attractive for scientists and industry minimum defects and porosities in the interfacial regions. [14-15]. The Fe-based coatings have exhibited good combination of the mechanical properties, such as hardness Introduction and wear resistance [16-19]. Another reason for the growing interest in Fe-based...
Abstract
View Papertitled, Investigation on Microstructural Characteristics and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Thermally Sprayed Fe-Base Composites Reinforced with Different Ceramic Particulates
View
PDF
for content titled, Investigation on Microstructural Characteristics and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Thermally Sprayed Fe-Base Composites Reinforced with Different Ceramic Particulates
Three different coatings were deposited using the Detonation Gun Spraying (DGS) technology from steel powders alone, and steel powers mixed with Fe3C and SiC particles, respectively. The microstructural characteristics of these coatings were examined and the hardness of each type of coating was studied. The morphology and structure of the feedstock powders were affected by the exposure to high temperature during the spraying process and rapid solidification of steel powders that resulted in the formation of an amorphous structure. The unreinforced steel coating had the highest hardness among the three types of coatings, possibly due to a higher degree of amorphization in the coating compared to the other two samples. The microstructural observation confirmed the formation of dense coatings with a layered structure with good connectivity between layers with minimum defects and porosities in the interfacial regions.
Proceedings Papers
Investigation of Mechanical Properties of Twin Wire Arc Repair of Cast Iron Components
Available to Purchase
ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 530-541, May 24–28, 2021,
... All rights reserved. F. Azarmi, X. Chen, J. Cizek, C. Cojocaru, B. Jodoin, H. Koivuluoto, Y. Lau, R. Fernandez, O. Ozdemir, H. Salami Jazi, and F. Toma, editors www.asminternational.org DOI: 10.31399/asm.cp.itsc2021p0530 Investigation of Mechanical Properties of Twin Wire Arc Repair of Cast Iron...
Abstract
View Papertitled, Investigation of <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Twin Wire Arc Repair of Cast Iron Components
View
PDF
for content titled, Investigation of <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Twin Wire Arc Repair of Cast Iron Components
Twin wire arc is a commonly used thermal spray technology for application of steel coatings to cast iron components. Hardness and adhesion strength are critical properties of such coatings, and significant research is available reporting these properties. However, residual stresses and the anisotropic structure of the coatings leads to significantly different behavior in bending applications than in the purely tensile loading of the standard adhesion test. In addition, microstructural features that are controlled by certain process parameters during deposition of the coating can have a significant effect on these properties. This work seeks to relate the hardness and pull-off adhesion strength to the coating microstructure, and to assess the related bending strength and failure mode. Comparisons between bend tests and pull-off adhesion tests show significant differences to consider when evaluating twin wire arc coatings.
Proceedings Papers
Mechanical Properties of Thermal Spray Coatings
Available to Purchase
ITSC 2001, Thermal Spray 2001: Proceedings from the International Thermal Spray Conference, 993-997, May 28–30, 2001,
... Abstract Under load and stress thermal spray coatings have unique behaviour as compared to the bulk materials. The aim of this study was to define the mechanical properties of thermal spray coatings and consider the effect of external stress on coatings under test conditions. Five HVOF...
Abstract
View Papertitled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Thermal Spray Coatings
View
PDF
for content titled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Thermal Spray Coatings
Under load and stress thermal spray coatings have unique behaviour as compared to the bulk materials. The aim of this study was to define the mechanical properties of thermal spray coatings and consider the effect of external stress on coatings under test conditions. Five HVOF or Plasma spray coatings: NiCr, WC-CoCr, Al 2 O 3 -TiO 2 , Al 2 O 3 , and Cr 2 O 3 were studied. Mechanical properties, such as elastic modulus (E), and tensile strength (a) were measured. Behaviour of some coatings in different loading conditions (tension and compressive) was studied.
Proceedings Papers
Mechanical Properties of Ceramic Matrix Composite for High Temperature Applications Obtained by Plasma Spraying
Available to Purchase
ITSC 2004, Thermal Spray 2004: Proceedings from the International Thermal Spray Conference, 32-35, May 10–12, 2004,
... standing samples, are presented. Tensile and bending properties were determined by mechanical tests on as sprayed samples and on samples exposed at high temperature (2173 K) in oxidising conditions. Experimental results clearly evidenced the possibility to use the plasma spraying technology and suggest...
Abstract
View Papertitled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Ceramic Matrix Composite for High Temperature Applications Obtained by Plasma Spraying
View
PDF
for content titled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Ceramic Matrix Composite for High Temperature Applications Obtained by Plasma Spraying
Nose and wing leading edges for future generations space vehicles will withstand very high temperature in an oxidizing environment. UHTC (Ultra High Temperature Ceramics) materials are very promising candidate materials for such applications. An innovative, proprietary methodology was developed to produce, by plasma spraying deposition, a ceramic composite containing SiC particles (25 wt %) dispersed in a ZrB 2 matrix. With such a technique both coatings and self standing parts were fabricated. In the present paper, the results of mechanical characterisations, carried out on self standing samples, are presented. Tensile and bending properties were determined by mechanical tests on as sprayed samples and on samples exposed at high temperature (2173 K) in oxidising conditions. Experimental results clearly evidenced the possibility to use the plasma spraying technology and suggest that the so fabricated ZrB 2 -SiC material is suitable to be adopted as protective coating.
Proceedings Papers
Mechanical Properties, Microstructural Characteristics and in-vitro Behavior of APS-Sprayed Nanostructured and Conventional Hydroxyapatite Coatings
Available to Purchase
ITSC 2004, Thermal Spray 2004: Proceedings from the International Thermal Spray Conference, 157-162, May 10–12, 2004,
... the International Thermal Spray Conference 10 May 2004 12 May 2004, ITSC 2004, Osaka, Japan DOI: 10.31399/asm.cp.itsc2004p0157 Copyright © 2004 ASM International® All rights reserved www.asminternational.org Mechanical properties, microstructural characteristics and in-vitro behavior of APS- sprayed nanostructured...
Abstract
View Papertitled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span>, Microstructural Characteristics and in-vitro Behavior of APS-Sprayed Nanostructured and Conventional Hydroxyapatite Coatings
View
PDF
for content titled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span>, Microstructural Characteristics and in-vitro Behavior of APS-Sprayed Nanostructured and Conventional Hydroxyapatite Coatings
Nanostructured and conventional hydroxyapatite (HA) feedstocks were evaluated to determine the effects of feedstock structure on the processing, properties and performance of coatings produced by atmospheric plasma spraying. The structure of the feedstocks was characterized using scanning electron microscopy (SEM). It was found that the nanostructured feedstock particles were formed by an agglomeration of nanostructured fibers having dimensions of less than 500 nm in length and below 100 nm in width. The average particle temperatures and velocities were measured during plasma spraying and found to be ~2650°C and ~315 m/s for the both feedstocks. The mechanical, microstructural and biocompatibility characteristics of coatings deposited on Ti-6Al-4V substrates were evaluated. The hardness was measured using Vickers indentation. The bond strength was determined via a tensile adhesion test. Microstructural characteristics of the coatings and their porosity levels were evaluated using SEM and image analysis. Phase analysis was carried out via X-ray diffraction (XRD) and aided by energy-dispersive X-ray analysis (EDS). The in-vitro behavior of these coatings was investigated in a simulated physiological solution in an attempt to simulate the environment of an implant in the human body.
Proceedings Papers
Mechanical Properties of Plasma Sprayed YSZ Coatings Measured Using TAT and TCT Test
Available to Purchase
ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 29-34, May 13–15, 2013,
.../asm.cp.itsc2013p0029 Copyright © 2013 ASM International® All rights reserved www.asminternational.org Mechanical Properties of Plasma Sprayed YSZ Coatings Measured Using TAT and TCT Test Andrew Siao Ming Ang1,2* and Christopher C. Berndt1,2,3 1 Industrial Research Institute Swinburne, Swinburne University...
Abstract
View Papertitled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Plasma Sprayed YSZ Coatings Measured Using TAT and TCT Test
View
PDF
for content titled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Plasma Sprayed YSZ Coatings Measured Using TAT and TCT Test
This investigation employs tensile adhesion tests (TAT) and tubular coating tensile (TCT) tests to measure the adhesion and cohesion bond strength of plasma sprayed YSZ coatings. Tensile adhesion testing measures the bond strength of the YSZ-bond coat system perpendicular to the spray direction, while tubular coating tensile testing measures the intersplat strength of the YSZ coating parallel to the spray direction. In both cases, the failure strength of the coatings can be approximated to a Weibull distribution, indicative of anisotropic behavior as verified by Knoop microhardness indentation tests. The average coating strength parallel to the spray direction is shown to be about 1.5 times greater than the bond strength perpendicular to the spraying direction.
Proceedings Papers
Investigation on Microstructural & Mechanical Properties of Cold Sprayed & P/M Processed Composites
Available to Purchase
ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 149-154, May 13–15, 2013,
..., A. Agarwal, M.M. Hyland, Y.-C. Lau, G. Mauer, A. McDonald, F.-L. Toma, editors httpsdoi.org/10.31399/asm.cp.itsc2013p0149 Copyright © 2013 ASM International® All rights reserved www.asminternational.org Investigation on Microstructural & Mechanical Properties of Cold Sprayed & P/M Processed Composites T...
Abstract
View Papertitled, Investigation on Microstructural &amp; <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold Sprayed &amp; P/M Processed Composites
View
PDF
for content titled, Investigation on Microstructural &amp; <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold Sprayed &amp; P/M Processed Composites
In this study, nickel-matrix composites reinforced with nickel-aluminide particles are produced by cold spraying and powder metallurgy techniques. A powder mixture of 80 vol% Ni and 20 vol% Ni3Al is used in both processes. Optical microscopy, SEM, and EDX analysis are used to evaluate the microstructural uniformity of the as-fabricated composites, while hardness and Young’s modulus are determined by microindentation tests. Microhardness tests are also conducted after each step of the P/M process in order to evaluate corresponding changes in hardness. The findings are presented and explained.
Proceedings Papers
Mechanical Properties of Cold-Sprayed Ti-6Al-4V Coatings
Available to Purchase
ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 155-160, May 13–15, 2013,
... MPa, the coatings could be tuned for optimum mechanical properties. Attainable coating properties are described in terms of a newly introduced coating quality parameter based on the ratio of particle velocity to critical velocity. The new parameter, η, is used both to interpret and predict coating...
Abstract
View Papertitled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold-Sprayed Ti-6Al-4V Coatings
View
PDF
for content titled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold-Sprayed Ti-6Al-4V Coatings
The present study deals with the production and characterization of Ti-6Al-4V coatings produced by cold spraying. All experiments were performed using nitrogen as the process gas. By systematic variation of spray parameters up to a nitrogen gas temperature of 1000 °C and pressure of 5 MPa, the coatings could be tuned for optimum mechanical properties. Attainable coating properties are described in terms of a newly introduced coating quality parameter based on the ratio of particle velocity to critical velocity. The new parameter, η, is used both to interpret and predict coating properties.
Proceedings Papers
Comparison of Microstructures and Mechanical Properties between Thermal and Kinetic Sprayed Thick Fe Deposits on Fe-Si Alloy Sheets
Available to Purchase
ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 172-177, May 13–15, 2013,
... www.asminternational.org Comparison of Microstructures and Mechanical Properties between Thermal and Kinetic Sprayed Thick Fe Deposits on Fe-Si Alloy Sheets Jaeick Kim, Gyuyeol Bae, Juyeon Won, Changhee Lee* Kinetic Spray Coating Lab, Division of Materials Science and Engineering, Hanyang University, Seoul 133-791, South...
Abstract
View Papertitled, Comparison of Microstructures and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> between Thermal and Kinetic Sprayed Thick Fe Deposits on Fe-Si Alloy Sheets
View
PDF
for content titled, Comparison of Microstructures and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> between Thermal and Kinetic Sprayed Thick Fe Deposits on Fe-Si Alloy Sheets
In this study, plain carbon steel wire and pure iron powder are deposited on grit-blasted Fe-Si alloy substrates using thermal (electric arc, plasma, and HVOF) and kinetic spraying techniques. The coatings obtained were then heat treated. Coating microstructures and mechanical properties were investigated and compared focusing on oxidation, delamination, and Si dilution from the substrate to the coating.
Proceedings Papers
Mechanical Properties of Cold Sprayed Al Coatings Reinforced by Ceramics
Available to Purchase
ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 200-204, May 13–15, 2013,
... Properties of Cold Sprayed Al Coatings Reinforced by Ceramics K.H. Ko, J.O. Choi, H. Lee* Department of Materials Science and Engineering, Ajou University, Suwon, 443-749, Republic of Korea *E-mail: [email protected] Abstract To improve the mechanical properties of Al coatings, ceramic reinforcement...
Abstract
View Papertitled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold Sprayed Al Coatings Reinforced by Ceramics
View
PDF
for content titled, <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold Sprayed Al Coatings Reinforced by Ceramics
This work investigates the effect of feedstock size on the hardness and wear resistance of metal-matrix composite coatings produced by cold spraying. Feedstocks consisting of Al and Al 2 O 3 powders were prepared for the study. The feedstocks, which differ in regard to Al 2 O 3 particle size (100, 50, 10 µm) and composition (25-50 vol%), were accelerated by compressed air through a Delaval-type nozzle positioned 10 mm from the target substrate. The morphology of the coating resembled that of an Al matrix with embedded Al 2 O 3 particles. Optical microscopy showed that large Al 2 O 3 particles (> 50 µm) fractured into small pieces and embedded in the matrix. It is likely that some of the fragmented particles bounced off, rather than adhering. These collisions (tamping effect) increase coating hardness and density. In the case of the feedstock with 10 µm Al 2 O 3 , particle sizes were unchanged during spraying and the benefits of work hardening were not achieved.
Proceedings Papers
Influence of Carrier Gas Composition on Microstructures and Mechanical Properties of Cold-Sprayed Titanium Coatings
Available to Purchase
ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 205-209, May 13–15, 2013,
..., A. McDonald, F.-L. Toma, editors httpsdoi.org/10.31399/asm.cp.itsc2013p0205 Copyright © 2013 ASM International® All rights reserved www.asminternational.org Influence of Carrier Gas Composition on Microstructures and Mechanical Properties of Cold-Sprayed Titanium Coatings Y. Ichikawa, K. Ogawa Tohoku...
Abstract
View Papertitled, Influence of Carrier Gas Composition on Microstructures and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold-Sprayed Titanium Coatings
View
PDF
for content titled, Influence of Carrier Gas Composition on Microstructures and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold-Sprayed Titanium Coatings
This study investigates the effects of gas composition on cold-sprayed titanium coatings deposited under nine different spray conditions. Experiments show that higher levels of gas purity translate to higher particle velocities and measurable improvements in bending strength. The influence of gas temperature, pressure, and chemical composition is considered in the study along with interactions between carrier gases and sprayed particles. In addition to bending strength, the resulting coatings are assessed in terms of porosity and oxygen content.
Proceedings Papers
Anisotropic Mechanical Properties of Cold Sprayed Copper Coatings
Available to Purchase
ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 210-214, May 13–15, 2013,
... Abstract Cold spraying is a promising process to fabricate functional coatings. Because of the solid-state particle deposition, the electrical and chemical properties of the coatings are similar to those of bulk materials. This is not the case with mechanical properties, however, which differ...
Abstract
View Papertitled, Anisotropic <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold Sprayed Copper Coatings
View
PDF
for content titled, Anisotropic <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold Sprayed Copper Coatings
Cold spraying is a promising process to fabricate functional coatings. Because of the solid-state particle deposition, the electrical and chemical properties of the coatings are similar to those of bulk materials. This is not the case with mechanical properties, however, which differ between the coating and bulk due to severe plastic deformation in the particles. The residual stress and bonding state of particles in cold-spray coatings are investigated in this study as to their influence on mechanical anisotropy. Bending tests on cold spray copper coatings show that loading direction has a significant effect, which may be related to the distribution of microvoids and pores. Traverse patterns and process gas temperature are also examined and are shown to play a role.
Proceedings Papers
Comparable Study of Electrical and Mechanical Properties in Plasma Sprayed Alumina Coatings
Available to Purchase
ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 312-317, May 13–15, 2013,
... www.asminternational.org Comparable Study of Electrical and Mechanical Properties in Plasma Sprayed Alumina Coatings T. Tosaki, Y. Kobayashi, K. Ohta, J. Kitamura*, FUJIMI INCORPORATED, Gifu, Japan *E-mail: [email protected] Abstract Alumina coatings by air plasma spraying (APS) have been prepared with various...
Abstract
View Papertitled, Comparable Study of Electrical and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> in Plasma Sprayed Alumina Coatings
View
PDF
for content titled, Comparable Study of Electrical and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> in Plasma Sprayed Alumina Coatings
In this work, alumina coatings are produced by air plasma spraying (APS) using dense powders ranging in size from 3 to 36 µm and one porous powder with an average particle size of 33 µm. Two spray systems were used, one rated at 40 kW, the other at 100 kW. The powders were applied to grit-blasted Al 6061 and low-carbon steel substrates. Coatings applied to Al 6061 using the high-power sprayer and 3 µm powder peeled off, likely due to thermal shock and mismatch. For all other coatings, the microstructure was examined by cross-sectional SEM, porosity was estimated via optical microscopy, and dielectric strength and volume resistivity were measured. Coatings formed from 3 µm powder were found to be dense with a mostly γ-phase crystal structure. Surprisingly, however, their volume resistivity was lower than that of more porous coatings with high amounts of α-phase. The findings show that, in the case of resistivity, spray equipment has a bigger influence than particle size, but with coating density, the opposite is true.
Proceedings Papers
Microscopic Characteristics and Mechanical Properties of Plasma Sprayed Al 2 O 3 Coatings
Available to Purchase
ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 406-411, May 13–15, 2013,
... Abstract This study investigates microscale features in plasma sprayed alumina and how they correlate with mechanical property differences at the macroscale. Thick alumina coatings were deposited on aluminum and titanium substrates by atmospheric and low-pressure plasma spraying using α-Al 2 O...
Abstract
View Papertitled, Microscopic Characteristics and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Plasma Sprayed Al 2 O 3 Coatings
View
PDF
for content titled, Microscopic Characteristics and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Plasma Sprayed Al 2 O 3 Coatings
This study investigates microscale features in plasma sprayed alumina and how they correlate with mechanical property differences at the macroscale. Thick alumina coatings were deposited on aluminum and titanium substrates by atmospheric and low-pressure plasma spraying using α-Al 2 O 3 powder as the feedstock. Coating surfaces and cross-sections were examined by FE-SEM, phase distributions were identified by means of EBSD, and porosity was measured via image analysis. Mechanical properties at the micro and macroscale were assessed by nanoindentation, Vickers hardness, and cavitation erosion testing. Relevant test results and observations are presented and discussed in the paper.
Proceedings Papers
Microstructure and Mechanical Properties of Plasma Sprayed Nanostructured and Conventional Al 2 O 3 -13TiO 2 Coatings
Available to Purchase
ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 512-515, May 13–15, 2013,
..., Republic of Korea R.S. Lima, A. Agarwal, M.M. Hyland, Y.-C. Lau, G. Mauer, A. McDonald, F.-L. Toma, editors httpsdoi.org/10.31399/asm.cp.itsc2013p0512 Copyright © 2013 ASM International® All rights reserved www.asminternational.org Microstructure and Mechanical Properties of Plasma Sprayed Nanostructured...
Abstract
View Papertitled, Microstructure and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Plasma Sprayed Nanostructured and Conventional Al 2 O 3 -13TiO 2 Coatings
View
PDF
for content titled, Microstructure and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Plasma Sprayed Nanostructured and Conventional Al 2 O 3 -13TiO 2 Coatings
This work evaluates the tribological properties of conventional and nanostructured Al 2 O 3 -13TiO 2 coatings obtained by atmospheric plasma spraying. The structure and composition of the composite coatings and powders were analyzed by SEM, TEM, and x-ray diffraction. Nanoindentation and ball-on-disc tests were conducted and surface topography was examined by noncontact 3D profiling. Coating samples of both types were polished and their friction coefficients were measured. The coefficient of friction for nanostructured coatings was 0.51, while that of conventional coatings was 0.62.
Proceedings Papers
Microstructure and Mechanical Properties of Cold Sprayed Titanium Coatings
Available to Purchase
ITSC 2017, Thermal Spray 2017: Proceedings from the International Thermal Spray Conference, 138-141, June 7–9, 2017,
... of helium onto 7075 Al alloy. The investigations revealed that the cold sprayed Ti coatings with addition of helium as working gas exhibit better mechanical properties, lower porosity and roughness. biocompatibility cold spraying corrosion resistance mechanical properties microstructure oxidation...
Abstract
View Papertitled, Microstructure and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold Sprayed Titanium Coatings
View
PDF
for content titled, Microstructure and <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of Cold Sprayed Titanium Coatings
The work concerns a study of the properties of cold sprayed Ti coatings. This material is an attractive choice for many applications because it exhibits high strength-to-weight ratios, very good oxidation resistance, corrosion resistance and biocompatibility. Cold spraying is applied to deposit Ti coatings and elements as additive manufacturing process, however it needs higher critical velocity for deposition than other, more ductile metals. Nowadays nitrogen as cheap gas is used as working gas in cold spray process, however application helium as accelerating gas allows to obtain elements with higher strength. It allows to understand the mechanism of cohesion between sprayed particles. In carried out experiment Ti powder with angular shape was applied in the cold spraying process. The coatings were sprayed by means of Impact Innovations 5/8 system with nitrogen and addition of helium onto 7075 Al alloy. The investigations revealed that the cold sprayed Ti coatings with addition of helium as working gas exhibit better mechanical properties, lower porosity and roughness.
Proceedings Papers
Understanding the Influence of Micro- and Sub-Micro Structural Features on the Mechanical Properties of HVO/AF Sprayed WC-CoCr Cermets
Available to Purchase
ITSC 2017, Thermal Spray 2017: Proceedings from the International Thermal Spray Conference, 250-258, June 7–9, 2017,
... spraying mechanical properties microstructure tungsten carbide-cobalt chromium cermets Thermal Spray 2017: Proceedings from the International Thermal Spray Conference and Exposition June 07-09, 2017, Düsseldorf, Germany A. Agarwal, G. Bolelli, A. Concustell, Y.-C. Lau, A. McDonald, F.-L. Toma, E...
Abstract
View Papertitled, Understanding the Influence of Micro- and Sub-Micro Structural Features on the <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of HVO/AF Sprayed WC-CoCr Cermets
View
PDF
for content titled, Understanding the Influence of Micro- and Sub-Micro Structural Features on the <span class="search-highlight">Mechanical</span> <span class="search-highlight">Properties</span> of HVO/AF Sprayed WC-CoCr Cermets
HVOF processes represent the state of art for the spray deposition of wear and corrosion resistant coatings since their supersonic gas velocities in combination with moderate flame temperatures allow the deposition of optimal coatings with very high bond strengths, fine surface finishes and low oxide levels. However, new generation coating materials (fine powders), stringent quality requirements and the high productivity demanded by the industry, push the HVOF technologies to their limits. Recently, a novel air-oxygen controlled high velocity combustion process has been development by Tecnalia. The system operates within the supersonic regime using a broad range of fuel/oxidant ratios thanks to the use of air-oxygen mixtures and a carefully optimized gun design. Extremely low flame temperatures can be achieved while keeping a supersonic flow of combustion products, thus allowing the solid state deposition of almost all industrially relevant metal alloys with superior deposit qualities. In this work, a systematic investigation of the influence of the powder particle size and gun configuration on resulting coating microstructural features has been performed. For comparison, two fine structured commercially available WC10Co4Cr powders with different particle size distributions have been investigated. The coating structure has been characterized with by high resolution SEM cross-section imaging and X-ray diffraction analysis. Resulting coatings are characterized by highly dense structures, a high retention of the primary carbides, average microhardness of up 1885 HV0.3 and fracture toughness varying between 3 and 7 MPa.m -1/2 depending on the powder particle size distribution and the process conditions used.
1