Effect of YSZ-incorporated glass-based composite coating on oxidation behavior of K438G superalloy at 1000(circle)C

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	Effect of YSZ-incorporated glass-based composite coating on oxidation behavior of K438G superalloy at 1000(circle)C
	Wang, Xin ; Zhu, Shenglong ; Gu, Ziwei ; Chen, Minghui ; Wang, Fuhui
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2017-03-01
卷号	37 期号:3 页码:1013-1022
关键词	Superalloy Glass-based coating YSZ Oxidation Microstructural evolution
ISSN号	0955-2219
通讯作者	Wang, X (reprint author), Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China.
中文摘要	A glass-based composite coating incorporating YSZ particles was prepared by sintering on K438G superalloy substrates. The YSZ additions increased the cyclic oxidation resistance at 1000(circle)C, while the formation of zircon resulting from interfacial reactions between YSZ and the glass matrix worked reversely. Besides, the YSZ inclusions changed the crystallization behavior of the glass matrix, and only anorthite precipitated during cyclic oxidation. Due to the synergy of sand-blasting and sealing effect of the glass-based coating, the oxidation behavior of K438G was changed and a layer of alumina instead of chromia formed at the substrate/coating interface. Furthermore, a gahnite layer formed at the alumina/gahnite interface because of interfacial reactions between alumina and the glass matrix, leading to the formation of a bilayered thermally grown oxide. Thus, the alumina layer was protected from the attack of the active glass matrix. Accordingly, the coated K438G superalloy exhibited satisfactory oxidation resistance at 1000(circle)C. (C) 2016 Elsevier Ltd. All rights reserved.
学科主题	Materials Science, Ceramics
收录类别	SCI
资助信息	National High Technology Research and Development Program of China (863 Program) [2012AA03A512]; National Key Basic Research Program of China (973Program) [2012CB625100]; National Natural Science Foundation of China [51501155]; Natural Science Foundation of Shaanxi Province, China [2016JM5045]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78279]
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	Wang, Xin,Zhu, Shenglong,Gu, Ziwei,et al. Effect of YSZ-incorporated glass-based composite coating on oxidation behavior of K438G superalloy at 1000(circle)C[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2017,37(3):1013-1022.
APA	Wang, Xin,Zhu, Shenglong,Gu, Ziwei,Chen, Minghui,&Wang, Fuhui.(2017).Effect of YSZ-incorporated glass-based composite coating on oxidation behavior of K438G superalloy at 1000(circle)C.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,37(3),1013-1022.
MLA	Wang, Xin,et al."Effect of YSZ-incorporated glass-based composite coating on oxidation behavior of K438G superalloy at 1000(circle)C".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 37.3(2017):1013-1022.