EFFECT OF WATER VAPOUR ON THE HIGH TEMPERATURE OXIDATION BEHAVIOUR OF NiCrAlY

J Chin Soc Corr Pro

2002, Vol. 22

Issue (2): 88-91 DOI:

Research Report

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EFFECT OF WATER VAPOUR ON THE HIGH TEMPERATURE OXIDATION BEHAVIOUR OF NiCrAlY

Jingsheng Yu;Chungen Zhou;Huibing Xv;Shengkai Gong

北京航空航天大学材料科学与工程学院

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Jingsheng Yu; Chungen Zhou; Huibing Xv; Shengkai Gong. EFFECT OF WATER VAPOUR ON THE HIGH TEMPERATURE OXIDATION BEHAVIOUR OF NiCrAlY. J Chin Soc Corr Pro, 2002, 22(2): 88-91 .

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Abstract The high temperature oxidation behavior of low pressure plasma sprayed(LPPS) NiCrAlY coating on nickel-base superalloy was stud ied at 1050℃ in a flow of O2,mixtures of O2 and 5%H2O under atmospheric p ressure.Oxide formed on the surface of LPPS NiCrAlY coating after oxidation at 1 050℃ in pure O2 consisted of Al2O3,whereas oxide formed on the surface of LPPS NiCrAlY coating after oxidation at 1050℃ in a mixture of O2 and 5%H2O is composed of Al2O3,Cr2O3 and NiO.The effect of water vapor on the cha racteristics of the oxide scale formed is attributed to the increase in Ni catio n transport.

Key words: oxidation NiCrAlY water vapor

Received: 03 December 2001

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TG172.82

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	Jingsheng Yu
	Chungen Zhou
	Huibing Xv
	Shengkai Gong

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2002/V22/I2/88

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