Effect of grain size on the oxidation behavior of Cu-20Ni-20Cr alloy

IMR OpenIR

	Effect of grain size on the oxidation behavior of Cu-20Ni-20Cr alloy
	Cao, ZQ ; Niu, Y ; Wu, WT
通讯作者	Cao, ZQ(caozhongqiu@hotmail.com)
	2003-12-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	32 期号:12 页码:1016-1020
摘要	In order to study the effect of grain size on the oxidation behavior of ternary multi-phase alloys, ternary Cu-20Ni-20Cr alloys were prepared at 700degreesC - 800degreesC in pure O-2 using are-melting(CA) and mechanical alloying(MA), respectively. The results show that for CA-Prepared Cu-20Ni-20Cr, no continue Cr2O3 film is formed on the surface of cast alloy, instead a complex oxidation films structure is formed made up of all the component oxides on the other hand with the fine-granular(nano-meter scale) MA-Prepared Cu-20Ni-2OCr alloy, oxidation at 700degreesC resulted in a film structure of 3 layers- (i) an outer CuO layer, (ii) an intermediate layer containing a mixture of Cu2O, NiO and Cr2O3, and (iii) an inner discontinuous Cr2O3 layer at 800degreesC no continuous Cr2O3 film forms on the surface. It is found that the finer grains reduced the critical concentration of the active element Cr suitable for the formation of Cr2O3 oxidation film on the alloy surface.
关键词	Cu-Ni-Cr alloy grain fining multi-phase microstructure high temperature oxidation
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000187912400012
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：9[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/321006/117852
专题	中国科学院金属研究所
通讯作者	Cao, ZQ
作者单位	1.Shenyang Normal Univ, Shenyang 110034, Peoples R China 2.Chinese Acad Sci, Met Res Inst, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Cao, ZQ,Niu, Y,Wu, WT. Effect of grain size on the oxidation behavior of Cu-20Ni-20Cr alloy[J]. RARE METAL MATERIALS AND ENGINEERING,2003,32(12):1016-1020.
APA	Cao, ZQ,Niu, Y,&Wu, WT.(2003).Effect of grain size on the oxidation behavior of Cu-20Ni-20Cr alloy.RARE METAL MATERIALS AND ENGINEERING,32(12),1016-1020.
MLA	Cao, ZQ,et al."Effect of grain size on the oxidation behavior of Cu-20Ni-20Cr alloy".RARE METAL MATERIALS AND ENGINEERING 32.12(2003):1016-1020.