Oxidation behavior of three-phase Cu-25Ni-30Cr alloy at 700-800 degrees C under high oxygen pressures

IMR OpenIR

	Oxidation behavior of three-phase Cu-25Ni-30Cr alloy at 700-800 degrees C under high oxygen pressures
	Cao, ZQ ; Liu, WH ; Zhai, GP ; Niu, Y
通讯作者	Cao, ZQ(caozhongqiu6508@sina.com)
	2005-06-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	15 期号:3 页码:491-496
摘要	The thermogravimetric analysis of a ternary Cu-25Ni-30Cr alloy prepared by conventional casting was performed in 0.1 MPa pure O-2 at 700 - 800 degrees C. The results show that the alloy is composed of three phases, where the phase with the largest copper and lowest chromium content forms the matrix, while the other two, much richer in chromium, form a dispersion of isolated particles. At variance with another three-phase Cu-20Ni-20Cr alloy, which forms complex scales containing the oxides of the various components and double oxides plus an irregular region composed of alloy and oxides, the present alloy can form a very irregular but continuous chromia layer at the base of the mixed internal region, producing a gradual decrease of the oxidation rate down to very low values. A larger chromium content needed to form chromia layer for a ternary three-phase alloy is attributed to the limitations to the diffusion of the alloy components in the metal substrate imposed by their multiphase nature.
关键词	Cu-Ni-Cr alloy three-phase high-temperature oxidation
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:000230449600003
出版者	ALLERTON PRESS INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/81996
通讯作者	Cao, ZQ
作者单位	1.Shenyang Normal Univ, Dept Chem, Shenyang 110034, Peoples R China 2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Cao, ZQ,Liu, WH,Zhai, GP,et al. Oxidation behavior of three-phase Cu-25Ni-30Cr alloy at 700-800 degrees C under high oxygen pressures[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2005,15(3):491-496.
APA	Cao, ZQ,Liu, WH,Zhai, GP,&Niu, Y.(2005).Oxidation behavior of three-phase Cu-25Ni-30Cr alloy at 700-800 degrees C under high oxygen pressures.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,15(3),491-496.
MLA	Cao, ZQ,et al."Oxidation behavior of three-phase Cu-25Ni-30Cr alloy at 700-800 degrees C under high oxygen pressures".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 15.3(2005):491-496.