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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; Wang, X (reprint author), Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China.
2017-03-01
发表期刊JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
卷号37期号:3页码:1013-1022
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.; 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.
部门归属[wang, xin ; gu, ziwei] northwest inst nonferrous met res, xian 710016, peoples r china ; [zhu, shenglong ; chen, minghui ; wang, fuhui] chinese acad sci, inst met res, shenyang 110016, peoples r china
关键词Superalloy Glass-based Coating Ysz Oxidation Microstructural Evolution
学科领域Materials Science, Ceramics
资助者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]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78279
专题中国科学院金属研究所
通讯作者Wang, X (reprint author), Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China.
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,&Wang, X .(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.
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