| 等离子喷涂Sm_2Zr_2O_7热障涂层残余热应力 |
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| 引用本文： | 张红松,张政,陈晓鸽,刘建英. 等离子喷涂Sm_2Zr_2O_7热障涂层残余热应力[J]. 中国陶瓷, 2010, 0(4) |
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| 作者姓名： | 张红松 张政 陈晓鸽 刘建英 |
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| 作者单位： | 河南工程学院机械工程系;河南工程学院土木工程系; |
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| 基金项目： | 河南工程学院青年基金项目,编号:Y2007008; 河南工程学院博士科研基金项目(D2007012)资助 |
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| 摘 要： | 采用有限元分析软件ANSYS对等离子喷涂Sm2Zr2O7热障涂层在金属基体材质类型、厚度、半径变化时涂层的残余热应力进行了分析。结果表明,金属基体的热膨胀系数对Sm2Zr2O7热障涂层的残余热应力有着显著影响,金属粘结层与表面陶瓷层界面处的残余应力及其应力梯度随着金属基体热膨胀系数增加而增大。金属基体厚度和半径不是影响Sm2Zr2O7热障涂层残余应力的主要因素。
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| 关 键 词： | 热障涂层 有限元 残余热应力 |
RESIDUAL THERMAL STRESSES OF PLASMA-SPRAYING Sm_2Zr_2O_7 THERMAL BARRIER COATINGS |
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| Zhang Hongsong,Zhang Zheng,Chen Xiaoge,Liu Jianying. RESIDUAL THERMAL STRESSES OF PLASMA-SPRAYING Sm_2Zr_2O_7 THERMAL BARRIER COATINGS[J]. China Ceramics, 2010, 0(4) |
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| Authors: | Zhang Hongsong Zhang Zheng Chen Xiaoge Liu Jianying |
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| Affiliation: | Zhang Hongsong1,Zhang Zheng1,Chen Xiaoge2,Liu Jianying1 (1 Department of Mechanical Engineering,Henan Institute of Engineering,Zhengzhou,450007,2 Department of Architecture Engineering,450007) |
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| Abstract: | The effect of material type,thickness and radius of metal substrates on residual thermal stresses in plasma-spraying Sm2Zr2O7 thermal barrier coatings was studied by finite element method software ANSYS. Results show that residul thermal stresses in Sm2Zr2O7 thermal barrier coatings were effected remarkably by thermal expansion coefficients of metal substrates,residual thermal stresses and its stress gradients at interface between metal bonding-layer and surface ceramic layer increases with the increasing o... |
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| Keywords: | Thermal barrier coatings Finite element method Residual thermal stresses |
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