Short-term oxidation resistance and degradation of Cr(2)AlC coating on M38G superalloy at 900-1100 degrees C

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	Short-term oxidation resistance and degradation of Cr(2)AlC coating on M38G superalloy at 900-1100 degrees C
	J. J. Li; M. S. Li; H. M. Xiang; X. P. Lu; Y. C. Zhou
	2011
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	53 期号:11 页码:3813-3820
摘要	High temperature oxidation behavior of the Cr(2)AlC coating was investigated at 900-1100 degrees C. During the oxidation, a continuous Al(2)O(3) scale formed, resulting in the improvement of the oxidation resistance of the substrate. Meanwhile, the oxidation induced depletion of Al within the Cr(2)AlC coating resulted in the transformation of Cr(2)AlC to Cr-C phases. Compared with bulk Cr(2)AlC, the Cr(2)AlC coating possessed similar oxidation behavior, but with higher oxidation rate. This is because a great number of columnar grain boundaries existed in the as-deposited coating, through which oxygen and nitrogen could diffuse inwardly, resulting in the internal oxidation and nitridation. (C) 2011 Elsevier Ltd. All rights reserved.
部门归属	[li, j. j.; li, m. s.; xiang, h. m.; lu, x. p.; zhou, y. c.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [li, j. j.; xiang, h. m.; lu, x. p.] chinese acad sci, grad sch, beijing 100039, peoples r china.;li, ms (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;mshli@imr.ac.cn
关键词	Ceramic Sputtered Films Oxidation Internal Oxidation High-temperature Oxidation Ab-initio Calculations Internal Nitridation Phase-transformation m(n+1)Ax(n) Phases Cyclic Oxidation Base Superalloy K38g Superalloy Bulk Cr2alc Al-c
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30468
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. J. Li,M. S. Li,H. M. Xiang,et al. Short-term oxidation resistance and degradation of Cr(2)AlC coating on M38G superalloy at 900-1100 degrees C[J]. Corrosion Science,2011,53(11):3813-3820.
APA	J. J. Li,M. S. Li,H. M. Xiang,X. P. Lu,&Y. C. Zhou.(2011).Short-term oxidation resistance and degradation of Cr(2)AlC coating on M38G superalloy at 900-1100 degrees C.Corrosion Science,53(11),3813-3820.
MLA	J. J. Li,et al."Short-term oxidation resistance and degradation of Cr(2)AlC coating on M38G superalloy at 900-1100 degrees C".Corrosion Science 53.11(2011):3813-3820.