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 | |
Source Publication | Corrosion Science
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ISSN | 0010-938X |
Volume | 53Issue:11Pages:3813-3820 |
Abstract | 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. |
description.department | [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 |
Keyword | 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 |
URL | 查看原文 |
Document Type | 期刊论文 |
Identifier | http://ir.imr.ac.cn/handle/321006/30468 |
Collection | 中国科学院金属研究所 |
Recommended Citation 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. |
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