Oxidation behaviour of NiCrAlY coatings on Ni-based superalloy

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	Oxidation behaviour of NiCrAlY coatings on Ni-based superalloy
	B. Wang; J. Gong; A. Y. Wang; C. Sun; R. F. Huang; L. S. Wen
	2002
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	149 期号:1 页码:70-75
摘要	NiCrAlY coatings were prepared on cast Ni-based IN100 superalloy using are ion plating, leading to a dense structure. The surface became smoother after vacuum heat treatment. The oxidation kinetic curves of the IN100 alloy and the coating were obtained. The results indicate that NiCrAlY coating gains more weight after cyclic than after isothermal oxidation and no oxide spallation was evident. The oxidation resistance of IN100 superalloy when exposed to either isothermal or cyclic oxidation was markedly improved by coating with NiCrAlY. The oxide scales mainly consisted of alpha-Al2O3 and Cr2O3, at 900degreesC. In the initial oxidation stage at 1000degreesC, three kinds of oxides, NiO, Cr2O3 and alpha-Al2O3, formed simultaneously. With further oxidation, not only is the thickness of the oxide scale increased, but complex reactions also occurred. (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, surface & interface lab, shenyang 110016, peoples r china.;sun, c (reprint author), chinese acad sci, inst met res, surface & interface lab, 72 wenhua rd, shenyang 110016, peoples r china
关键词	Nicraly Coating Oxidation Behaviour Ni-based Alloy Mcraly Coatings
URL	查看原文
WOS记录号	WOS:000173162700010
引用统计	被引频次：90[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/321006/36425
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. Wang,J. Gong,A. Y. Wang,et al. Oxidation behaviour of NiCrAlY coatings on Ni-based superalloy[J]. Surface & Coatings Technology,2002,149(1):70-75.
APA	B. Wang,J. Gong,A. Y. Wang,C. Sun,R. F. Huang,&L. S. Wen.(2002).Oxidation behaviour of NiCrAlY coatings on Ni-based superalloy.Surface & Coatings Technology,149(1),70-75.
MLA	B. Wang,et al."Oxidation behaviour of NiCrAlY coatings on Ni-based superalloy".Surface & Coatings Technology 149.1(2002):70-75.