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Coating erosion

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001657
EISBN: 978-1-62708-227-3
... that coating erosion in conjunction with severe hot-corrosion was responsible for crack initiation in the leading edge area. Coating erosion Marine engines Turbine blades Turbine vanes MAR-M302 Inconel 713C High-temperature corrosion and oxidation Fatigue fracture Introduction...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003569
EISBN: 978-1-62708-180-1
... is removed, electrochemical reaction becomes more important. For soft, less-noble coatings such as zinc, erosion can be reduced by cathodic protection of the coating remaining outside ( Fig. 20 ). Fig. 20 Erosion rate of metallic coatings (frequency = 20 kHz; distance between specimen and vibration...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003570
EISBN: 978-1-62708-180-1
... have confirmed that commercially available powder (e.g., Ni-15.5Cr-4Fe-4Si-3B, in weight percent), plasma sprayed on a variety of substrates and then flame remelted, form adherent, hard, erosion-resistant coatings ( Ref 25 ). Performance in vibratory cavitation of as-sprayed and flame remelted Ni-Cr-Fe...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003568
EISBN: 978-1-62708-180-1
... by particles having higher kinetic energy, thus increasing the rate of damage. Erosion by fly ash causes polishing, flat spots, wall thinning, and eventual tube rupture. Fly-ash erosion can be controlled by coating tube surfaces with refractory cements or other hard, wear-resistant materials, although...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006795
EISBN: 978-1-62708-295-2
..., and eventual tube rupture. Fly ash erosion can be controlled by coating tube surfaces with refractory cements and other hard, erosion-resistant materials, although this reduces the heat-transfer capability of the surface. An alternative method is the use of baffles to channel gas flow away from critical areas...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006794
EISBN: 978-1-62708-295-2
...-Multilayer Coatings on F690 Steel Substrates , Appl. Surf. Sci. , Vol 428 , 2018 , p 404 – 414 10.1016/j.apsusc.2017.09.166 37. Caicedo J.C. , Cabrera G. , Aperador W. , Escobar C. , and Amaya C. , Corrosion-Erosion Effect on TiN/TiAlN Multilayers , J. Mater. Eng...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006796
EISBN: 978-1-62708-295-2
... , Wear , Vol 267 , 2009 , p 1605 – 1618 10.1016/j.wear.2009.06.012 27. Oka Y.I. and Miyata H. , Erosion Behaviour of Ceramic Bulk and Coating Materials Caused by Water Droplet Impingement , Wear , Vol 267 , 2009 , p 1804 – 1810 10.1016/j.wear.2009.02.009 28. Crockett...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
... used in the laboratory portion of the failure investigation are mentioned in the failure examples. The topics covered are creep, localized overheating, thermal-mechanical fatigue, high-cycle fatigue, fretting wear, erosive wear, high-temperature oxidation, hot corrosion, liquid metal embrittlement...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001809
EISBN: 978-1-62708-241-9
..., pitting was observed throughout the body. Erosion damage that was characterized by a continuum of overlapping pits was also present throughout the body. Additionally, the ceramic coating was completely removed from the impeller. Chemical analysis at two different locations was performed by inductively...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006789
EISBN: 978-1-62708-295-2
... damage of the worn products after the tribological process. Then, the article describes some examples of wear processes, considering possible transitions and/or interactions of the mechanism of fretting wear, rolling-sliding wear, abrasive wear, and solid-particle erosion wear. The role of tribological...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091761
EISBN: 978-1-62708-229-7
... tip fractured due to thermomechanical fatigue in its degraded state. Recommendations included special chromium or silicon-rich coating to minimize corrosion in gas turbines operating in a marine environment with operating temperatures in the range of type 2 corrosion (650 to 750 deg C, or 1200 to 1380...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
... Abstract High temperature corrosion may occur in numerous environments and is affected by factors such as temperature, alloy or protective coating composition, time, and gas composition. This article explains a number of potential degradation processes, namely, oxidation, carburization...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001628
EISBN: 978-1-62708-234-1
... that the discoloration on the cylinder was associated with metal oxidation products coated with a thin oil film. One of the recommendations was to plate the OD of the cylinder with hard chromium to increase its resistance to erosion. Another recommendation was to reduce the amounts of water contamination...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001592
EISBN: 978-1-62708-228-0
... of a suitable chemical program and/or coating of the surface with a corrosion resistant material is also recommended. In an aggressive environment, the failure mode was localized corrosive attack caused by turbulence and erosion corrosion. The corrosion failure process was enhanced by the high velocity...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001779
EISBN: 978-1-62708-241-9
... erosion behaviour of thermal sprayed ceramic, metallic and polymer coatings . Sci. Technol. 221 , 93 – 108 ( 1998 ) 10.1016/S0043-1648(98)00267-1 17. Sun Z. , Kang X.Q. , Wang X.H. : Experimental system of cavitation erosion with water-jet . Mater. Des. 26 , 59 – 63...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001803
EISBN: 978-1-62708-241-9
... 17Cr-14Ni 7 Inclusions, shrinkage cavities, segregations Intramedullar nails 15Cr-10Ni-15Nb 1.5 Wear, fatigue Spinal rods 17Cr-15Ni-3Mn 3 Corrosive attack, pitting, wear Compression plates Ti-6Al-4V 1 Inclusions, multiorigined ductile fracture Vertebral implant 316L 2 Erosion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001486
EISBN: 978-1-62708-234-1
... of the piston. The exact mechanism of cavitation damage is not entirely clear. Two schools of thought have developed, one supporting an essentially erosive, and the other an essentially corrosive, mechanism. Measures to prevent, or reduce, cavitation damage should be considered firstly from the aspect of design...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001822
EISBN: 978-1-62708-241-9
... coating by grit blasting after the leakage was observed. The failed pipe as received for failure analysis is shown in Fig. 2 . Visual inspection revealed metal loss apparently resulting from erosion caused by the water jetting out of the cracks. No mechanical damage was seen anywhere on the pipe...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001679
EISBN: 978-1-62708-229-7
... portion of the pump has been seen. In addition, erosion and cavitation inside the throat of the venturi tube and corrosion on the other surface of the venturi tube has been observed. Several measures are being examined in an attempt to improve the performance of these pumps. These measures, as well...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001143
EISBN: 978-1-62708-229-7
... of failure. Damage mechanisms which can act on the blades include fatigue, corrosion, erosion and thermal shock. There are also combinations of these damage mechanisms, such as corrosion fatigue, which possess unique characteristics that are different from the characteristics of the two main damage...