Oxidation of two-phase Cu-Cr alloys with different microstructures

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	Oxidation of two-phase Cu-Cr alloys with different microstructures
	G. Y. Fu; Y. Niu; W. T. Wu; H. R. Guan
	2001
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	11 期号:3 页码:333-336
摘要	The oxidation of PM Cu-50Cr, MPI Cu-40Cr and MS Cu-40Cr alloys at 800 degreesC in 0.1 MPa O-2 was studied. The most important difference of their oxidation behaviors is the formation of an exclusive chromia scale on the surface of the MS Cu-40Cr alloy and a continuous chromia layer beneath an outer CuO layer corresponding MA Cu-40Cr alloy, while a complex scale composing of CuO, Cu2O, Cu2Cr2O4 and Cr2O3 formed on the PM Cu-50Cr alloy. This result implies that alloy microstructure affects their oxidation behaviors largely. Microcrystalline structure provides numerous diffusion paths for reactive component chromium, shorter diffusion distance and rapid dissolution of Cr-riched second phase. All these favor the exclusive formation of the most stable oxide.
部门归属	inst chem technol, dept mech engn, shenyang 110021, peoples r china. chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.
关键词	Oxidation Cu-cr Alloys Powder Metallurgy Mechanical Alloying Sputtering Corrosion Resistance Superalloy K38g
URL	查看原文
WOS记录号	WOS:000169187900004
引用统计	被引频次：13[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/321006/36638
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. Y. Fu,Y. Niu,W. T. Wu,et al. Oxidation of two-phase Cu-Cr alloys with different microstructures[J]. Transactions of Nonferrous Metals Society of China,2001,11(3):333-336.
APA	G. Y. Fu,Y. Niu,W. T. Wu,&H. R. Guan.(2001).Oxidation of two-phase Cu-Cr alloys with different microstructures.Transactions of Nonferrous Metals Society of China,11(3),333-336.
MLA	G. Y. Fu,et al."Oxidation of two-phase Cu-Cr alloys with different microstructures".Transactions of Nonferrous Metals Society of China 11.3(2001):333-336.