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Proceedings Papers
ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1291-1295, May 8–11, 2000,
..., there is not a recommended practice or standard for evaluating Young's modulus and Poisson's ratio for thermal spray coatings. The ASM International Thermal Spray Society has recognized this need and formed a committee on Recommended Practices for Thermal Spray Coatings. This paper describes one of the recommended practices...
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In situ values of Young's modulus and Poisson's ratio for thermal spray coatings are needed to evaluate properties and characteristics of thermal spray coatings such as residual stresses, in-service stresses, bond strength, fracture toughness, and fatigue crack growth rates. It is important to have methods documented in detail so that people can follow the document and use the methods. Such a document requires more pages than are allowed in conference proceeding and journal papers. Thus, Recommended Practices and Standards describing these methods are needed. Currently, there is not a recommended practice or standard for evaluating Young's modulus and Poisson's ratio for thermal spray coatings. The ASM International Thermal Spray Society has recognized this need and formed a committee on Recommended Practices for Thermal Spray Coatings. This paper describes one of the recommended practices being written by the Mechanical Properties Evaluation Subcommittee of the Recommended Practices Committee. The specimen is a coated substrate in the form of a cantilever beam. The method is easy to use and inexpensive. The equipment needed is a vise or clamping fixture, strain gages, a strain indicator, a micrometer, a ruler, a hanger, and a set of weights. The specimen is easy to machine and spray. The loading is easy to apply and remains constant during readings. The method can be used to evaluate Young's modulus and Poisson's ratio in tension or compression. A description of the method, a verification, and a sensitivity analysis was done and published in Reference [1]. Some of the details of implementing the method and the data sheet are presented here.
Proceedings Papers
ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 377-383, May 8–11, 2000,
... for evaluating residual stresses and (2) a written recommended procedure for applying the method. ASM International is not a standard writing organization. Yet, the increased use of thermal spray coatings and the need for documentation on methods for evaluating mechanical properties of thermal spray coatings...
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Thermal spray coatings are subjected to mechanical loadings in many applications, and there is a need to evaluate the mechanical properties of these coatings. Mechanical properties of interest in the performance of thermal spray coatings include fatigue life, wear resistance, bond strength. Young's modulus, Poisson's ratio, and residual stresses. One property that has a large effect on the performance of thermal spray coated parts is the residual stress distribution in the thermal spray coating and in the substrate. Thus, it is important to have (1) a fundamentally sound method for evaluating residual stresses and (2) a written recommended procedure for applying the method. ASM International is not a standard writing organization. Yet, the increased use of thermal spray coatings and the need for documentation on methods for evaluating mechanical properties of thermal spray coatings have generated a need to prepare Recommended Practices. To meet this need, the ASM International Thermal Spray Society has formed three subcommittees to prepare Recommended Practices for thermal spray coatings. This paper describes a draft form of a Recommended Practice for evaluating residual stresses in thermal spray coatings. This Recommended Practice is being developed by the Subcommittee on "Evaluating of Mechanical Properties of Thermal Spray Coatings". The method, called the Modified Layer Removal Method, has been presented in several papers and has been used for a variety of different coatings. The paper describes the dimensions of the test specimen, the equipment needed, the procedure for removing layers, and the methods for collecting and interpreting the data to evaluate through thickness residual stresses. The Recommended Practice (RP) is in Draft form, but is presented to let the thermal spray community know about the RP effort and invite comments and volunteers to write other RP's.
Proceedings Papers
ITSC2016, Thermal Spray 2016: Proceedings from the International Thermal Spray Conference, 361-367, May 10–12, 2016,
..., A. McDonald, F.-L. Toma, E. Turunen, and C.A. Widener, editors httpsdoi.org/10.31399/asm.cp.itsc2016p0361 Copyright 2012 ASM International® All rights reserved www.asminternational.org Tribology and Nanoindentation Study of Suspension HVOF Thermally Sprayed Alumina Coating T. Hussain, E.C. Shaw, Z. Pala, F...
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In this study, a water-based corundum suspension was used to deposit 60 μm alumina coatings onto carbon steel substrates by HVOF spraying. The aim was to develop thin coatings with superior wear properties. Hydrogen was used as a fuel gas and process parameters were varied to determine their effect on microstructure and properties. Coating microstructure was examined by SEM to assess particle melting and morphology and XRD was used to study the phase transformation of the feedstock suspension. At higher combustion flame energy, the coating transformed primarily to gamma alumina, while at lower energy, it was found to be a mixture of alpha and gamma alumina. Nanoindentation tests were used to measure the hardness and elastic modulus of individual phases. Ball-on-plate wear tests helped reveal the relationship between wear performance and the alpha-gamma ratios in the coatings.
Proceedings Papers
ITSC2014, Thermal Spray 2014: Proceedings from the International Thermal Spray Conference, 173-178, May 21–23, 2014,
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This study investigates relationships between in-flight particle characteristics and the microstructural properties of air plasma sprayed YSZ. Particle velocity and temperature were measured at different stand-off distances and contour plots were created. Coating porosity and hardness were measured and plotted over the same area. It is shown that in-flight particle characteristics are strongly affected by particle size distribution. Smaller particles in trajectories above the torch central axis were found to be 10 m/sec slower on average than larger particles in the center and lower section of the plume. The section of the plume with the highest temperatures and velocities is about 2 mm below the central axis and is shown to generate dense, hard layers with less than 7% porosity and hardness values on the order of 700 HV. Reynolds numbers determined from in-flight particle data also provide an indication of microstructural properties; where Reynolds numbers exceed 1000, coating porosity is less than 5%.
Proceedings Papers
ITSC 2018, Thermal Spray 2018: Proceedings from the International Thermal Spray Conference, 62-68, May 7–10, 2018,
... of the International Thermal Spray Conference May 7-10, 2018, Orlando, Florida, USA F. Azarmi, K. Balani, T. Eden, T. Hussain, Y.-C. Lau, H. Li, K. Shinoda, F.-L. Toma, J. Veilleux, editors httpsdoi.org/10.31399/asm.cp.itsc2018p0062 Copyright © 2018 ASM International® All rights reserved www.asminternational.org Study...
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The metal finishing process of electrolytic hard chrome (EHC) plating has been identified as a source of environmental pollution in most industrialized countries like Australia, Europe and USA. The key driver for the technology replacement is that the EHC plating process uses hexavalent chromium, which is a known carcinogen. Our previous research has identified that cold spray nanostructured tungsten carbide cobalt (WC-Co) coatings can be a suitable alternative to provide a functional coating in wear applications. This work explores at another similar technology- Kinetic Metallization for deposition of WC-Co coatings. In this work, the objective is to characterize the residual stress profile of these WC-Co coatings that are deposited by the latest KM systems. These coating systems are used in critical applications such as landing gear pistons and axle journals, hydraulic rods, engine shaft journals, and numerous other external surfaces that operate under high cyclic loading conditions. As such, the residual stress developed during the KM coating process has a significant influence on the fatigue properties of the components. Thus, knowledge of stresses and their linkage with other properties and production parameters is essential for the quality control of these critical structures.
Proceedings Papers
ITSC 2018, Thermal Spray 2018: Proceedings from the International Thermal Spray Conference, 759-765, May 7–10, 2018,
.... Balani, T. Eden, T. Hussain, Y.-C. Lau, H. Li, K. Shinoda, F.-L. Toma, J. Veilleux, editors httpsdoi.org/10.31399/asm.cp.itsc2018p0759 Copyright © 2018 ASM International® All rights reserved www.asminternational.org Investigation into the suitability of HVOF nickel based cermets in marine hydraulic...
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A study was conducted into the use of HVOF coatings on hydraulic cylinder rods in marine environments subject to both biofouling and corrosion. The study comprised a laboratory phase for candidate material selection and HVOF process optimisation. This was followed by long term field testing of the most promising candidates, which were subsequently assessed based on corrosion, adhesion, surface roughness and hydraulic sealing performance. Two candidates, nickel based WC cermet coatings, WC–10Ni5Cr and WC–18Hastelloy C, showed excellent results, and are considered as candidates for the application.
Proceedings Papers
Andrew S.M. Ang, Christopher C. Berndt, Mitchell L. Sesso, Ameey Anupam, Praveen. S. Ravi Sankar Kottada ...
ITSC 2015, Thermal Spray 2015: Proceedings from the International Thermal Spray Conference, 27-32, May 11–14, 2015,
..., USA A. McDonald, A. Agarwal, G. Bolelli, A. Concustell, Y.-C. Lau, F.-L. Toma, E. Turunen, C. Widener, editors httpsdoi.org/10.31399/asm.cp.itsc2015p0027 Copyright © 2015 ASM International® All rights reserved www.asminternational.org Comparison of Plasma Sprayed High Entropy Alloys with Conventional...
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High entropy alloys (HEAs) are a new class of alloys that have multiple principal elements in an equiatomic ratio and that exhibit novel phase structures. HEAs are known for their high temperature microstructural stability, enhanced oxidation and wear resistance properties. Apart from bulk material consolidation methods such as casting and sintering, HEAs can also be deposited as a surface coating. In this work, thermal sprayed HEA coatings are investigated as an alternative bond coat material for a thermal barrier coating system. Nanostructured HEAs that were based on AlCoCrFeNi and MnCoCrFeNi were prepared by ball milling and then plasma sprayed. Splat studies were assessed to optimize the appropriate thermal spray parameters and spray deposits were prepared. Subsequently, the microstructure and mechanical properties of two HEAs coatings of different composition were characterized and compared to conventional plasma spray NiCrAlY bond coats.
Proceedings Papers
ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, ix, May 8–11, 2000,
... Abstract Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993. Thermal Spray Surface Engineering via Applied Research: Copyright © 2000 ASM International® Proceedings of the 1st International Thermal Spray Conference...
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Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993.
Proceedings Papers
ITSC2012, Thermal Spray 2012: Proceedings from the International Thermal Spray Conference, 729-733, May 21–24, 2012,
... to significantly improving a protective property of surface oxide layer of Al 2 O 3 . Heat resistance of developed coatings was compared with austenitic steels like Tempaloy A-1 and TP 310 ASME SA312 and with ferritic steels like T11 and T122 ASME A213 which are widely used as boiler materials. arc spraying...
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According to our modeling of oxygen input into particles at arc spraying (AS) a cored wire of Fe-25Cr-5Al type was developed. The oxidation behavior of AS coatings from this wire was studied in air under atmospheric pressure at 700°C. Influence of Si, Ti was studied by means of mass-change measurements, X-ray diffraction (XRD) and scanning electron microscopy (SEM). It is determined that addition of Si and Ti lead to preventing formation of complex carbides like (Fe, Cr) 7 C 3 , spinels like (Fe, Cr) 2 O 3 and nitrides like AlN. Absence of these carbides, spinels and nitrides leads to significantly improving a protective property of surface oxide layer of Al 2 O 3 . Heat resistance of developed coatings was compared with austenitic steels like Tempaloy A-1 and TP 310 ASME SA312 and with ferritic steels like T11 and T122 ASME A213 which are widely used as boiler materials.
Proceedings Papers
ITSC 2001, Thermal Spray 2001: Proceedings from the International Thermal Spray Conference, ix, May 28–30, 2001,
... Abstract Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993. Thermal Spray 2001: New Surfaces for a New Millennium: Proceedings of the International Thermal Spray Conference Christopher C. Berndt, Khiam A. Khor...
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Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993.
Proceedings Papers
ITSC 2009, Thermal Spray 2009: Proceedings from the International Thermal Spray Conference, v-vii, May 4–7, 2009,
... Abstract Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993. Thermal Spray 2009: Proceedings of the International Thermal Spray Conference B.R. Marple, M.M. Hyland, Y.-C. Lau, C.-J. Li, R.S. Lima, G. Montavon...
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Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993.
Proceedings Papers
ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, ix, September 15–18, 1997,
... Abstract Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993. Thermal Spray: A United Forum for Scientific and Technological Advances: Copyright © 1997 ASM International® Proceedings of the 1st United Thermal Spray...
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Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993.
Proceedings Papers
ITSC 2006, Thermal Spray 2006: Proceedings from the International Thermal Spray Conference, vii, May 15–18, 2006,
... Abstract Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993. Thermal Spray 2006: Proceedings from the International Thermal Spray Conference 15 May 2006 18 May 2006, ITSC2006, ITSC 2006, Seattle, Washington, USA DOI...
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Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993.
Proceedings Papers
ITSC 2003, Thermal Spray 2003: Proceedings from the International Thermal Spray Conference, viii, May 5–8, 2003,
... Abstract Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993. Thermal Spray 2003: Proceedings from the International Thermal Spray Conference 05 May 2003 08 May 2003, ITSC 2003, Orlando, Florida, USA DOI: 10.31399...
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Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993.
Proceedings Papers
ITSC 2007, Thermal Spray 2007: Proceedings from the International Thermal Spray Conference, vii, May 14–16, 2007,
... Abstract Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993. Thermal Spray 2007: Proceedings from the International Thermal Spray Conference 14 May 2007 16 May 2007, ITSC2007, ITSC 2007, Beijing, China httpsdoi.org...
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Listing of inductees in the ASM International Thermal Spray Hall of Fame, established by the ASM Thermal Spray Society in 1993.
Proceedings Papers
ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 242-246, March 4–6, 2002,
... Abstract The ASM Thermal Spray Society Recommended Practices Committee, through its Subcommittee on Safety, is responsible for the development and dissemination of practical recommendations for thermal spraying work. This paper discusses the guidance set forth in the “Recommended Practice...
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The ASM Thermal Spray Society Recommended Practices Committee, through its Subcommittee on Safety, is responsible for the development and dissemination of practical recommendations for thermal spraying work. This paper discusses the guidance set forth in the “Recommended Practice for the Handling and Usage of Gases in Thermal Spraying,” which deals with the installation, operation, and maintenance of gas equipment used in spraying processes. It summarizes the hazards associated with compressed gases and high-pressure cylinders and presents precautionary measures to reduce the risks. Paper includes a German-language abstract.
Proceedings Papers
ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, iii, October 7–11, 1996,
... Abstract Preface for the National Thermal Spray Conference 1996. Includes a publishing history for proceedings from previous thermal spray conference events. Thermal Spray: Practical Solutions for Engineering Problems: Copyright © 1996 ASM International® Proceedings of the 9th National...
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Preface for the National Thermal Spray Conference 1996. Includes a publishing history for proceedings from previous thermal spray conference events.
Proceedings Papers
ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, iii-vi, May 8–11, 2000,
... Abstract Preface for the International Thermal Spray Conference 2000. Includes a publishing history for proceedings from previous thermal spray conference events. Thermal Spray Surface Engineering via Applied Research: Copyright © 2000 ASM International® Proceedings of the 1st International...
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Preface for the International Thermal Spray Conference 2000. Includes a publishing history for proceedings from previous thermal spray conference events.
Proceedings Papers
ITSC 2001, Thermal Spray 2001: Proceedings from the International Thermal Spray Conference, iii-vi, May 28–30, 2001,
.... Berndt, Khiam A. Khor, Erich F. Lugscheider, editors, p iii-vi DOI: 10.31399/asm.cp.itsc2001fm01 Copyright © 2001 ASM International® All rights reserved. www.asminternational.org Preface The International Thermal Spray Conference 2001 (ITSC 2001), held 28-30 May in Singapore, represented the second full...
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Preface for the International Thermal Spray Conference 2001. Includes a publishing history for proceedings from previous thermal spray conference events.
Proceedings Papers
ITSC 2006, Thermal Spray 2006: Proceedings from the International Thermal Spray Conference, iii-v, May 15–18, 2006,
..., Seattle, Washington, USA DOI: 10.31399/asm.cp.itsc2006fm01 Copyright © 2006 ASM International® All rights reserved www.asminternational.org Preface This volume contains the proceedings of the International Thermal Spray Conference 2006 (ITSC 2006) held in Seattle, Washington, May 15 18, 2006. More than...
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Preface for the International Thermal Spray Conference 2006. Includes a publishing history for proceedings from previous thermal spray conference events.
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