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题名: Interfacial microstructure evolution of glass-based coating on IC10 superalloy with a Ni3Al bond-coat at 1050 degrees C
作者: Wang, Xin;  Zhu, Shenglong;  Li, Zhengxian;  Zhang, Yusheng;  Chen, Minghui;  Wang, Fuhui
发表日期: 2017-8-1
摘要: 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.
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Recommended Citation:
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.

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