HIGH TEMPERATURE HOT-CORROSION BEHAVIOR OF (Ni, Pd)Al COATING

Acta Metall Sin

2004, Vol. 40

Issue (7): 773-778 DOI:

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HIGH TEMPERATURE HOT-CORROSION BEHAVIOR OF (Ni, Pd)Al COATING

LI Mengjin; SUN Xiaofeng; GUAN Hengrong; JIANG Xiaoxia; HU Zhuangqi

Superalloy Research Division; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110016

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LI Mengjin; SUN Xiaofeng; GUAN Hengrong; JIANG Xiaoxia; HU Zhuangqi. HIGH TEMPERATURE HOT-CORROSION BEHAVIOR OF (Ni, Pd)Al COATING. Acta Metall Sin, 2004, 40(7): 773-778 .

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Abstract The high temperature hot corrosion behavior of the (Ni, Pd)Al coating coated with Na2SO4 or Na2SO4+25%NaCl at 900℃ was investigated by TGA, XRD, SEM/EDS. Results show that (Ni, Pd)Al coating has higher oxidation resistance than the NiAl coating. The modified element Pd incorporating into the aluminide coating hinders the diffusion of S into the inner part of the coating matrix, and increases the hot corrosion resistance of the aluminide coating.

Key words: (Ni Pd)Al NiAl coating hot corrosion

Received: 31 July 2003

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TG174.4

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	LI Mengjin
	SUN Xiaofeng
	GUAN Hengrong
	JIANG Xiaoxia
	HU Zhuangqi

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2004/V40/I7/773

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