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thermal spray coating

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Published: 01 January 2002
Fig. 12 Adhesive delamination in thermally sprayed Al 2 O 3 coating More
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Published: 01 January 2002
Fig. 13 Cohesive delamination in thermally sprayed WC-Co coating (backscattered electron image) More
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Published: 01 January 2002
Fig. 18 Spalling of thermally sprayed WC-Co coating More
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Published: 01 January 2002
Fig. 14 Subsurface crack observations during delamination failure of thermal spray coatings. (a) Subsurface cracks in WC-Co-coated rolling cone at the depths of maximum and orthogonal shear stress. (b) Propagated subsurface cracks leading to coating delamination during RCF failure of WC-Co More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003563
EISBN: 978-1-62708-180-1
... deposition, and thermal spraying (TS). It provides a background to RCF in bearing steels in order to develop an understanding of failure modes in overlay coatings. The article describes the underpinning failure mechanisms of TiN and diamond-like carbon coatings. It presents an insight into the design...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
... in the environment; change in the alloy or heat treatment; change in design; use of galvanic protection; use of inhibitors; use of nonmetallic coatings and liners; application of metallic coatings; use of surface treatments, thermal spray, or other surface modifications; corrosion monitoring; and preventive...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006792
EISBN: 978-1-62708-295-2
... or a combination of ceramic and metal (cermet) materials, which are much harder than the underlying steel substrate ( Ref 136 ). Three major techniques are used for these coatings: physical vapor deposition, chemical vapor deposition, and thermal spray. Physical Vapor Deposition Coatings Overlay coatings...
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Published: 01 January 2002
Fig. 11 Abrasive failure of the rolling wear track in thermally sprayed WC-Co coating More
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
.... , Abrasive and Erosive Wear of Some Hypervelocity Air Plasma Sprayed Coatings , Thermal Spray Coatings: Properties, Processes, and Applications, Proc. Fourth Nat. Thermal Spray Conf. , Bernecki T. , Ed., ASM International , 1992 , p 39 – 52 24. Sang K.-Z. and Li Y.-G...
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Published: 01 January 2002
Fig. 10 Rolling-contact fatigue failure modes of thermal spray cermet and ceramic coatings. Source: Ref 84 More
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... been dissolved. Iron is nearly inert in air-free water and seawater, because there is limited cathodic reaction possible. If the surface of the metal is coated with paint or other nonconducting film, the rates of both anodic and cathodic reactions are greatly reduced, and corrosion will be retarded...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001829
EISBN: 978-1-62708-241-9
.../asm.hb.v11.a0003555 • Lima R.S. , Zhu D. and Li L. , Thermal and Environmental Barrier Coatings (TBCs/EBCs) for Turbine Engines , Thermal Spray Technology , Vol 5A , ASM Handbook , Tucker R.C. , Ed., ASM International , 2013 , p 270 – 279 . 10.31399/asm.hb.v05a.a0005733...
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
... in boilers are employing thicker tubes of the same material; shielding tubes with clamp-on protectors; coating with thermal sprayed, corrosion-resistant materials; blending coals to reduce corrosive ash constituents; replacing tubes with higher-grade alloys or coextruded tubing; lowering final steam outlet...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001408
EISBN: 978-1-62708-220-4
... in temperature. The material was a steel in the normalized condition with a 0.35% C content. It appears probable that deficient lubrication of the gland resulted in overheating of the rod due to friction. The presence of a sprayed-metal coating was probably an additional factor in promoting failure, as it would...
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
... is effective and economical. Various coating techniques can be used, including thermal spray, hardfacing, laser surface modification, physical vapor deposition, and chemical vapor deposition ( Ref 63 , 68 ). Ceramic-metal composite coatings (e.g., WC-CrNi, WC-Co, and WC-FeCrAl coatings) are often used...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... Abstract High-temperature corrosion can occur in numerous environments and is affected by various parameters such as temperature, alloy and protective coating compositions, stress, time, and gas composition. This article discusses the primary mechanisms of high-temperature corrosion, namely...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001702
EISBN: 978-1-62708-219-8
... presented in Figure 5 . Bare concrete on bent 8 and pier 9 of the Yaquina Bay Bridge (Newport, OR) gave values ranging from 14.5 to 17.2 mL/min. Measurements on a thermal spray zinc coating, recently installed for an impressed current cathodic protection (ICCP) system at the Yaquina Bay Bridge, gave values...
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
... metal droplets deposited on a surface at high velocity; similar structures are intentionally formed by thermal spray coating. Energy-dispersive x-ray spectroscopy analysis of the metallic portions of the deposit revealed a chemical composition consistent with that of the first-stage blade alloy IN-700...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001543
EISBN: 978-1-62708-218-1
... cylinder and piston walls. As speeds increase and engines become more powerful, pistons will have to do even more work. Aluminum, however, could still be used for pistons by following one or more procedures. First, the piston crown could be plated with a heavy coating of nickel, or sprayed...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001754
EISBN: 978-1-62708-241-9
... to the discovery of an unsubmitted and unidentified beveled gear mating housing that was composed of the same alloy and exhibited some significant gouging. The rectangular, chipped fragments were found to be Nickel based, with 4.5% Fe and 5% Al, possibly a form of thermal-sprayed coating. Its source could...