论文期刊

Effect of TGO creep on top-coat cracking induced by cyclic displacement instability in a thermal barrier coating system




作者: Luochuan Su, Weixu Zhang, Yongle Sun, TJ Wang
发表/完成日期: 2014-09-15
期刊名称: Surface and Coatings Technology
期卷:
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论文简介
Abstract The displacement instability of the thermally grown oxide (TGO) under thermal
cycling is a fundamental source of cracking within the ceramic top-coat (TC) in a thermal
barrier coating system. The effect of TGO creep on TC cracking induced by cyclic instability
is numerically investigated in this work. Temperature-dependent elastic–plastic properties of
each coating layer are considered in a finite element analysis. A power law is adopted to
model the creep behavior of TGO and bond-coat (BC), and TGO growth at high ...
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