The degradation of (Ni,Pd)Al coatings on superalloy IN738 during isothennal oxidation

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	The degradation of (Ni,Pd)Al coatings on superalloy IN738 during isothennal oxidation
	M. J. Li; X. F. Sun; H. R. Guan; X. X. Jiang; Z. Q. Hu
	2004
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	185 期号:2-3 页码:172-177
摘要	Isothermal oxidation of the plain and palladium modified aluminide coatings, developed by the low-pressure pack cementation process, on the nickel base superalloy IN738, has been carried out at 900similar to1100 degreesC, with the primary objective of systematically understanding the coating degradation process during oxidation, by XRD, optical microscopy (OM) and energy dispersive X-ray spectrometry (EDS). Results show that the degradation mechanism of the (Ni,Pd)Al coating is similar to the plain NiAl coating. The microstructural degradation of both the (Ni,Pd)Al coating and NiAl coatings occurs due to phase transformation from beta to gamma' during oxidation at high temperature. Palladium may play a significant role in stabilizing the beta phase, retarding the degradation of coating, and increasing the coating performance for high temperature oxidation resistance. (C) 2003 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, ctr adv mat res & dev, superalloy res div, shenyang 110016, peoples r china. chinese acad sci, shenyang 110016, peoples r china. chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;li, mj (reprint author), chinese acad sci, inst met res, ctr adv mat res & dev, superalloy res div, shenyang 110016, peoples r china;mjli@imr.ac.cn
关键词	(Ni Pd)Al Coating Nial Coating Oxidation Degradation Palladium Modified Aluminide Coatings Corrosion Behavior
URL	查看原文
WOS记录号	WOS:000222563700006
引用统计	被引频次：21[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/321006/35412
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. J. Li,X. F. Sun,H. R. Guan,et al. The degradation of (Ni,Pd)Al coatings on superalloy IN738 during isothennal oxidation[J]. Surface & Coatings Technology,2004,185(2-3):172-177.
APA	M. J. Li,X. F. Sun,H. R. Guan,X. X. Jiang,&Z. Q. Hu.(2004).The degradation of (Ni,Pd)Al coatings on superalloy IN738 during isothennal oxidation.Surface & Coatings Technology,185(2-3),172-177.
MLA	M. J. Li,et al."The degradation of (Ni,Pd)Al coatings on superalloy IN738 during isothennal oxidation".Surface & Coatings Technology 185.2-3(2004):172-177.