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Interfacial microstructure evolution of glass-based coating on IC10 superalloy with a Ni3Al bond-coat at 1050 degrees C
Wang, Xin; Zhu, Shenglong; Li, Zhengxian; Zhang, Yusheng; Chen, Minghui; Wang, Fuhui; Wang, X (reprint author), Northwest Inst Nonferrous Met Res, Xian, Shaanxi, Peoples R China.
2017-08-01
Source PublicationWILEY
ISSN0002-7820
Volume100Issue:8Pages:3451-3466
AbstractA glass-based composite coating incorporating YSZ, corundum, and Ni3Al was prepared on IC10 superalloy with a sputtering Hf-modified Ni3Al bond-coat. Sealing effect of the glass-based top-coat and reactive elemental effect of Hf facilitated the formation of columnar alpha-Al2O3 at 1050 degrees C. Furthermore, a discontinuous gahnite interlayer formed at the alpha-Al2O3/top-coat interface due to interfacial reactions. However, because of the discontinuous microstructure of gahnite, the alpha-Al2O3 suffered durative attack by the active glass matrix, which caused severe internal oxidation of Hf and Al within the bond-coat. In addition, the oxygen barrier ability of the top-coat changed with its microstructure evolution.; A glass-based composite coating incorporating YSZ, corundum, and Ni3Al was prepared on IC10 superalloy with a sputtering Hf-modified Ni3Al bond-coat. Sealing effect of the glass-based top-coat and reactive elemental effect of Hf facilitated the formation of columnar alpha-Al2O3 at 1050 degrees C. Furthermore, a discontinuous gahnite interlayer formed at the alpha-Al2O3/top-coat interface due to interfacial reactions. However, because of the discontinuous microstructure of gahnite, the alpha-Al2O3 suffered durative attack by the active glass matrix, which caused severe internal oxidation of Hf and Al within the bond-coat. In addition, the oxygen barrier ability of the top-coat changed with its microstructure evolution.
description.department[wang, xin ; li, zhengxian ; zhang, yusheng] northwest inst nonferrous met res, xian, shaanxi, peoples r china ; [zhu, shenglong ; chen, minghui ; wang, fuhui] chinese acad sci, inst met res, shenyang, liaoning, peoples r china
KeywordCoatings Glass Interfaces Oxidation Transmission Electron Microscopy
Subject AreaMaterials Science, Ceramics
Funding OrganizationNational Natural Science Foundation of China [51501155, 51603169]; Natural Science Foundation of Shaanxi Province, China [2016JM5045]; National High Technology Research and Development Program of China [2012AA03A512]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79164
Collection中国科学院金属研究所
Corresponding AuthorWang, X (reprint author), Northwest Inst Nonferrous Met Res, Xian, Shaanxi, Peoples R China.
Recommended Citation
GB/T 7714
Wang, Xin,Zhu, Shenglong,Li, Zhengxian,et al. Interfacial microstructure evolution of glass-based coating on IC10 superalloy with a Ni3Al bond-coat at 1050 degrees C[J]. WILEY,2017,100(8):3451-3466.
APA Wang, Xin.,Zhu, Shenglong.,Li, Zhengxian.,Zhang, Yusheng.,Chen, Minghui.,...&Wang, X .(2017).Interfacial microstructure evolution of glass-based coating on IC10 superalloy with a Ni3Al bond-coat at 1050 degrees C.WILEY,100(8),3451-3466.
MLA Wang, Xin,et al."Interfacial microstructure evolution of glass-based coating on IC10 superalloy with a Ni3Al bond-coat at 1050 degrees C".WILEY 100.8(2017):3451-3466.
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