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carbonitriding

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Published: 01 June 2019
Fig. 1 Carbonitrided 8617 steel pilot-valve bushing that fractured in fatigue because of improper heat treatment. Dimensions given in inches More
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Published: 01 December 2019
Fig. 8 Case Microstructure of carbonitrided and hardened specimen Nital 3% ×100 More
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Published: 01 December 2019
Fig. 9 Core microstructure of carbonitrided and hardened specimen Nital 3% ×100 More
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Published: 01 December 2019
Fig. 10 Core microstructure of carbonitrided and hardened specimen Nital 3% ×500 More
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Published: 01 December 2019
Fig. 11 Hardness distribution for carbonitrided and hardened specimen More
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Published: 01 December 2019
Fig. 13 SEM micrograph showing a titanium carbonitride and niobium carbide ( a ), dot mapping of titanium ( b ), and dot mapping of niobium ( b ) More
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Published: 01 December 2019
Fig. 14 SEM micrograph showing a string of titanium carbonitrides and niobium carbides ( a ), dot mapping of titanium ( b ), and dot mapping of niobium ( c ) More
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Published: 30 August 2021
Fig. 22 Retained austenite in 1018 steel carbonitrided at three different temperatures. Bar 28.5 mm (1.12 in.) in diameter quenched in 55 °C (130 °F) oil. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0046195
EISBN: 978-1-62708-225-9
... hardened to a depth of 0.13 to 0.4 mm (0.005 to 0.015 in.) by carbonitriding. Specifications required that the part be carbonitrided, cooled, rehardened by quenching from 790 deg C (1450 deg F), then tempered at about 175 deg C (350 deg F). Visual examination, hardness testing, and metallographic...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001759
EISBN: 978-1-62708-241-9
... and hardened specimen Nital 3% ×100 Fig. 8 Case Microstructure of carbonitrided and hardened specimen Nital 3% ×100 Fig. 9 Core microstructure of carbonitrided and hardened specimen Nital 3% ×100 Fig. 10 Core microstructure of carbonitrided and hardened specimen Nital 3% ×500...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091754
EISBN: 978-1-62708-229-7
... collapse of the duct. Carbides and carbonitrides were found in all of the transitions examined. Investigation supported the conclusion that failure was caused by oxidation, oxide penetration, and oxide spallation which caused thinning of the duct wall. It was felt that the high oxygen and nitrogen partial...
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
... oxidation, carburization, metal dusting, nitridation, carbonitridation, sulfidation, and chloridation. Several other potential degradation processes, namely hot corrosion, hydrogen interactions, molten salts, aging, molten sand, erosion-corrosion, and environmental cracking, are discussed under boiler tube...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006816
EISBN: 978-1-62708-329-4
... that cause a part to fail during heat treatment. The article discusses the problems associated with heating and furnaces, quenching media, quenching stresses, hardenability, tempering, carburizing, carbonitriding, and nitriding as well as potential stainless steel problems and problems associated...
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Published: 01 December 2019
Fig. 8 SEM micrographs and spectrum diagram of inclusions ( a , d ) oxide inclusions and sulfide inclusion; ( b , e ) oxide inclusions, carbonitride inclusion, and sulfide inclusion; ( c , f ) oxide inclusions and sulfide inclusion More
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Published: 01 June 2019
Fig. 1 High-temperature degradation of a gas turbine transition duct. (a) Carbide, carbonitride precipitates, and oxide pentration along grain boundary. (b) Creep cracking along grain-boundary precipitates (arrows) on IN-617 panel. Creep cavities along grain boundaries link up and lead More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001712
EISBN: 978-1-62708-234-1
... I.D. oxidation up to 3 mm, stemming from shrinkage porosity heavily spherodized, grey, primary carbonitrides O.D. surface decarburization with oxidation - 1 mm thick non-aligned creep voids throughout 1C similar to above 1F primary carbonitrides less heavily...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001787
EISBN: 978-1-62708-241-9
... grain of the crack tip position Fig. 8 SEM micrographs and spectrum diagram of inclusions ( a , d ) oxide inclusions and sulfide inclusion; ( b , e ) oxide inclusions, carbonitride inclusion, and sulfide inclusion; ( c , f ) oxide inclusions and sulfide inclusion Fig. 9...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001816
EISBN: 978-1-62708-241-9
... decohesion Fig. 11 SEM micrograph of the steel tested at 800 °C showing a w-shaped decohesion Fig. 12 SEM micrograph of the steel tested at 800 °C showing a ferrite–pearlite (ductile) decohesion Fig. 13 SEM micrograph showing a titanium carbonitride and niobium carbide...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001910
EISBN: 978-1-62708-217-4
... on Maraging Steels , American Society for Metals , Materials Park, OH , 1979 , p. 370 . 2. Vishnevsky C. : Interim Report—Contract DAAG 46–69-C-0060 , Army Materials and Mechanics Research Center , February 1970 , p. 34 . 3. Anon. : in Carburizing and Carbonitriding , Gray A.G...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001838
EISBN: 978-1-62708-241-9
... here. The microstructures of specimens of material from bent and straight pipe sections were compared and found to be normal and unremarkable. All samples show the expected solution annealed microstructure. As expected, there is a banded microstructure of primary titanium carbonitrides ( Fig. 6...