High-temperature oxidation and hot corrosion of Cr2AlC

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	High-temperature oxidation and hot corrosion of Cr2AlC
	Z. J. Lin; M. S. Li; J. Y. Wang; Y. C. Zhou
	2007
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	55 期号:18 页码:6182-6191
摘要	High-temperature oxidation and hot corrosion behaviors of Cr2AlC were investigated at 800-1300 degrees C in air. Thermogravimetric-differential scanning calorimetric test revealed that the starting oxidation temperature for Cr2AlC is about 800 degrees C, which is 400 degrees C higher than other ternary transition metal aluminum carbides. Thermogravinietric analyses demonstrated that Cr2AlC displayed excellent hightemperature oxidation resistance with parabolic rate constants of 1.08 x 10(-12) and 2.96 x 10(-9) kg(2) m(-4) s(-1) at 800 and 1300 degrees C, respectively. Moreover, Cr2AlC exhibited exceptionally good hot corrosion resistance against molten Na2SO4 salt. The mechanism of the excellent high-temperature corrosion resistance for Cr2AlC can be attributed to the formation of a protective Al2O3-rich scale during both the high-temperature oxidation and hot corrosion processes. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, grad sch, beijing 100039, peoples r china.;zhou, yc (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;yczhou@imr.ac.cn
关键词	Cr2alc Hot Pressing Oxidation Hot Corrosion Microstructure Liquid Reaction Synthesis Ti2alc Air Behavior Ti3alc2 Ti Deposition Ti3sic2 Powders Phases
URL	查看原文
WOS记录号	WOS:000250888800016
引用统计	被引频次：308[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/321006/33682
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. J. Lin,M. S. Li,J. Y. Wang,et al. High-temperature oxidation and hot corrosion of Cr2AlC[J]. Acta Materialia,2007,55(18):6182-6191.
APA	Z. J. Lin,M. S. Li,J. Y. Wang,&Y. C. Zhou.(2007).High-temperature oxidation and hot corrosion of Cr2AlC.Acta Materialia,55(18),6182-6191.
MLA	Z. J. Lin,et al."High-temperature oxidation and hot corrosion of Cr2AlC".Acta Materialia 55.18(2007):6182-6191.