Improving the high-temperature oxidation resistance of a beta-gamma TiAl alloy by a Cr(2)AlC coating

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	Improving the high-temperature oxidation resistance of a beta-gamma TiAl alloy by a Cr(2)AlC coating
	Q. M. Wang; R. Mykhaylonka; A. F. Renteria; J. L. Zhang; C. Leyens; K. H. Kim
	2010
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	52 期号:11 页码:3793-3802
摘要	A Cr(2)AlC coating was deposited on a beta-gamma TiAl alloy. Isothermal oxidation tests at 700 degrees C and 800 degrees C, and thermocyclic oxidation at 800 degrees C were performed in air. The results indicated that serious oxidation occurred on the bare alloy. Thick non-protective oxide scales consisting of mixed TiO(2) + alpha-Al(2)O(3) layers formed on the alloy surface. The coated specimens exhibited much better oxidation behaviour by forming an Al-rich oxide scale on the coating surface during the initial stages of oxidation. This scale acts as diffusion barrier by effectively blocking the ingress of oxygen, and effectively protects the coated alloys from further oxidation. (C) 2010 Elsevier Ltd. All rights reserved.
部门归属	[wang, q. m.] inst met sci & technol, div surface engn mat, shenyang 110016, peoples r china. [wang, q. m.; mykhaylonka, r.; renteria, a. flores; zhang, j. l.; leyens, c.] brandenburg tech univ cottbus, d-03046 cottbus, germany. [wang, q. m.; kim, k. h.] pusan natl univ, natl core res ctr hybrid mat solut, pusan 609735, south korea. [leyens, c.] tech univ dresden, inst mat sci, d-01069 dresden, germany.;wang, qm (reprint author), inst met sci & technol, div surface engn mat, 72 wenhua rd, shenyang 110016, peoples r china;qmwang@imr.ac.cn
关键词	Ceramic Sputtered Films Intermetallics Sem Xrd Oxidation Titanium Aluminide Behavior Air Intermetallics 900-degrees-c
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31509
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. M. Wang,R. Mykhaylonka,A. F. Renteria,et al. Improving the high-temperature oxidation resistance of a beta-gamma TiAl alloy by a Cr(2)AlC coating[J]. Corrosion Science,2010,52(11):3793-3802.
APA	Q. M. Wang,R. Mykhaylonka,A. F. Renteria,J. L. Zhang,C. Leyens,&K. H. Kim.(2010).Improving the high-temperature oxidation resistance of a beta-gamma TiAl alloy by a Cr(2)AlC coating.Corrosion Science,52(11),3793-3802.
MLA	Q. M. Wang,et al."Improving the high-temperature oxidation resistance of a beta-gamma TiAl alloy by a Cr(2)AlC coating".Corrosion Science 52.11(2010):3793-3802.