材料科学
热障涂层
高温合金
复合材料
物理气相沉积
氧化钇稳定氧化锆
基质(水族馆)
电子束物理气相沉积
化学气相沉积
立方氧化锆
图层(电子)
陶瓷
微观结构
涂层
纳米技术
地质学
海洋学
作者
Masakazu Okazaki,Satoshi Yamagishi,Motoki Sakaguchi,Takeo Okamura
出处
期刊:Materials Science Forum
日期:2009-10-01
卷期号:631-632: 91-96
标识
DOI:10.4028/www.scientific.net/msf.631-632.91
摘要
Thermal fatigue damage evolution behavior in thermal barrier coatings (TBCs) was studied, by employing the originally designed two dimensional ring-shape TBC specimen. The TBC specimen consisted of Ni-based superalloy IN738LC substrate, bond coat, and 8 wt.% Y2O3-stabilized ZrO2 (YSZ) top coat. The top coat was fabricated by electron-beam physical vapor deposition (EB-PVD) method with 250 micron-meters in thickness. Three kinds of MCrAlY bond coat alloys were specified as an experimental variable. Through the work, special attention was paid not only to the failure life of TBC specimen, but also to the underlying failure mechanisms. Some problems have been also pointed out, on feeding back these experimental findings to engineering applications.
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