| 材料特性对热障涂层合理压入深度的影响 |
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| 引用本文： | 钱秀清,张建宇,费斌军.材料特性对热障涂层合理压入深度的影响[J].航空材料学报,2008,28(5). |
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| 作者姓名： | 钱秀清 张建宇 费斌军 |
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| 作者单位： | 北京航空航天大学,航空科学与工程学院,北京,100083 |
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| 摘 要： | 基于有限元计算方法和量纲分析原理提出了热障涂层合理压入深度的确定方法,并研究了涂层及基体材料特性对合理压入深度的影响.首先,根据量纲分析原理提出了合理压入深度的无量纲表达式;其次基于锥形压头识别理想弹塑性材料的材料特性的方法,提出合理压入深度的确定方法;最后研究了各无量纲因素对合理压入深度的影响.研究发现基体的弹性模量对合理压入深度的影响最大,粘结层材料特性的影响较大,热氧化生成层的材料特性及基体的屈服极限对合理压入深度的影响不大.
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| 关 键 词： | 热障涂层 材料特性 压入深度 量纲分析 有限元法 |
Effect of Material Properties on Reasonable Indentation Depth of TBCs |
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| QIAN Xiu-qing,ZHANG Jian-yu,FEI Bin-jun.Effect of Material Properties on Reasonable Indentation Depth of TBCs[J].Journal of Aeronautical Materials,2008,28(5). |
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| Authors: | QIAN Xiu-qing ZHANG Jian-yu FEI Bin-jun |
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| Institution: | QIAN Xiu-qing,ZHANG Jian-yu,FEI Bin-jun(School of Aeronautic Science , Engineering,Beijing University of Aeronautics , Astronautics,Beijing 100083,China) |
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| Abstract: | The reasonable indentation depth of the thermal barrier coating system is investigated using a combination of dimensional analysis and finite element analysis.Scaling functions relating the reasonable indentation depth are given according to the dimensional analysis.Based on the method of exacting the material properties of elastic-perfectly plastic material using the sharp indenter,the method to determine the ratio of the reasonable indentation depth to coating thickness below which the substrate material ... |
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| Keywords: | thermal barrier coatings materials properties indentation depth dimensional analysis finite element method |
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