STUDY ON HOT CORROSION RESISTANCE OF A NEW DIRECTIONAL SOLIDIFICATION Ni-BASED SUPERALLOY

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	STUDY ON HOT CORROSION RESISTANCE OF A NEW DIRECTIONAL SOLIDIFICATION Ni-BASED SUPERALLOY
	Ning Likui 1,2; Zheng Zhi 1; Tan Yi 2; Liu Enze 1; Tong Jian 1; Yu Yongsi 2; Wang Hua 3
通讯作者	Zheng Zhi(zhcngzhi@imr.ac.cn)
	2009-02-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	45 期号:2 页码:161-166
摘要	The hot corrosion resistance of a new directional solidification (DS) Ni-based super-alloy DZ68 was studied and compared with K438 alloy. The results indicate that the microstructure of DZ68 alloy is more uniform than K438 alloy after heat treatment. There are small size carbides in the microstructure of DZ68 alloy after heat treatment, but there are big size carbides and a lot (gamma + gamma') eutectic in the microstructure of K438 alloy. The hot corrosion of DZ68 alloy is uniform, and the corrosion products are mainly (Ni, Co)Cr(2)O(4) and Al(2)O(3), More (Ni, Co)Cr(2)O(4) exists in outer corrosion layer and more Al(2)O(3) exists in inner corrosion layer. For the K438 alloy the hot corrosion is not uniform, NiO is the mainly corrosion product in outer corrosion layer and CrS is the main corrosion product in inner corrosion layer, Moreover, the segregation of Ti can induce segregation of other elements in the two alloys, which leads to a severe local corrosion of alloys. Under the same experimental condition, the corrosion resistance of DZ68 alloy is a little better than that of K438 alloy.
关键词	DZ68 hot corrosion superalloy
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000264304600006
出版者	SCIENCE PRESS
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/98935
专题	中国科学院金属研究所
通讯作者	Zheng Zhi
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116023, Peoples R China 3.AVIC Xian Aeroengine Grp Ltd, Xian 710021, Peoples R China
推荐引用方式 GB/T 7714	Ning Likui,Zheng Zhi,Tan Yi,et al. STUDY ON HOT CORROSION RESISTANCE OF A NEW DIRECTIONAL SOLIDIFICATION Ni-BASED SUPERALLOY[J]. ACTA METALLURGICA SINICA,2009,45(2):161-166.
APA	Ning Likui.,Zheng Zhi.,Tan Yi.,Liu Enze.,Tong Jian.,...&Wang Hua.(2009).STUDY ON HOT CORROSION RESISTANCE OF A NEW DIRECTIONAL SOLIDIFICATION Ni-BASED SUPERALLOY.ACTA METALLURGICA SINICA,45(2),161-166.
MLA	Ning Likui,et al."STUDY ON HOT CORROSION RESISTANCE OF A NEW DIRECTIONAL SOLIDIFICATION Ni-BASED SUPERALLOY".ACTA METALLURGICA SINICA 45.2(2009):161-166.