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Co-Ni-Cr-Al-Y (cobalt-nickel-chromium-aluminum-yttrium alloy)

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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
... oxidation thermal-barrier coated superalloys spalling microstructural analysis operating time ECY768 (cobalt-base superalloy) Co-Ni-Cr-Al-Y (cobalt-nickel-chromium-aluminum-yttrium alloy) Introduction The largest use of coatings on superalloys is on components in the hot gas section...
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
... of low-melting mixtures of Na 2 SO 4 in Ni-Cr, Co-Cr, Co-Cr-Al, and Ni-Cr-Al alloys ( Ref 34 ). If other reactants are added, melting temperatures can be further lowered. The relative hot corrosion resistance of several alloys was evaluated in incinerator environments ( Ref 20 , 35 , 36 ). Example 4...
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
... formation of Cr 2 O 3 at NiS sites. The higher chromium content of the Ni-28Cr alloy reduced the substrate area that was depleted of chromium ( Ref 25 ). Sulfur is transported through the Al 2 O 3 and Cr 2 O 3 protective scales under certain conditions, resulting in discrete sulfide precipitates...