Short-term oxidation and hot corrosion resistance of a gradient CrN/Cr(1-x)Al(x)N coating

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	Short-term oxidation and hot corrosion resistance of a gradient CrN/Cr(1-x)Al(x)N coating
	M. Zhu ; M. S. Li ; J. J. Xu ; Y. C. Zhou
刊名	Materials and Corrosion-Werkstoffe Und Korrosion
	2010
卷号	61 期号:11 页码:939-946
关键词	high-temperature oxidation aluminide coatings overlay coatings nitride coatings behavior alloy superalloy k38g cr
ISSN号	0947-5117
中文摘要	A CrN/Cr(1-x)Al(x)N coating comprised of an inner layer of CrN and an outer layer of Cr1(1-x)Al(x)N with a gradient distribution of Al was deposited on two different alloys by a reactive sputtering method. Oxidation and hot-corrosion tests of the gradient CrN/Cr1(1-x)Al(x)N coating were performed at different temperatures. The phase compositions and morphologies of the as-deposited coating and the corrosion products were investigated by using XRD and SEM/EDS. The results showed that the gradient CrN/Cr1(1-x)Al(x)N coating exhibited good oxidation resistance at temperatures above 1000 degrees C owing to the formation of an alpha-Al(2)O(3)-rich oxide scale. The coating possessed good hot-corrosion resistance in molten sulfate because the inner CrN layer could supply enough Cr to form a relatively protective Cr(2)O(3) after the Al(2)O(3)-enriched scale failed due to its dissolution in the molten sulfate.
原文出处	://WOS:000284175200004
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/31789]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	M. Zhu,M. S. Li,J. J. Xu,et al. Short-term oxidation and hot corrosion resistance of a gradient CrN/Cr(1-x)Al(x)N coating[J]. Materials and Corrosion-Werkstoffe Und Korrosion,2010,61(11):939-946.
APA	M. Zhu,M. S. Li,J. J. Xu,&Y. C. Zhou.(2010).Short-term oxidation and hot corrosion resistance of a gradient CrN/Cr(1-x)Al(x)N coating.Materials and Corrosion-Werkstoffe Und Korrosion,61(11),939-946.
MLA	M. Zhu,et al."Short-term oxidation and hot corrosion resistance of a gradient CrN/Cr(1-x)Al(x)N coating".Materials and Corrosion-Werkstoffe Und Korrosion 61.11(2010):939-946.