| 钛合金基体上TiN涂层的残余热应力分析 |
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| 引用本文： | 陈勇国,张东明,刘晶,何芬,张联盟.钛合金基体上TiN涂层的残余热应力分析[J].人工晶体学报,2009,38(1):251-254. |
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| 作者姓名： | 陈勇国 张东明 刘晶 何芬 张联盟 |
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| 作者单位： | 武汉理工大学材料复合新技术国家重点实验室,武汉,430070;武汉理工大学资源与环境工程学院,武汉,430070 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，湖北省科技攻关项目 |
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| 摘 要： | 采用有限元方法分析TiN涂层的残余热应力,研究钛合金基体和涂层厚度对TiN涂层热应力分布的影响.结果表明:基体内以拉应力为主,涂层内以压应力为主,在明锐界面靠近自由边界处出现了剪切应力奇异场;当涂层厚度增加时,涂层的径向应力逐渐减少,而剪应力先增加随后又趋于平稳;涂层的径向应力随基体厚度增加而增加,当基体厚度超过1 mm时增加变得平缓.
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| 关 键 词： | TiN涂层 有限元 残余热应力 |
Thermal Residual Stress Analysis of TiN Coating on Titanium Alloy Substrate |
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| CHEN Yong-guo,ZHANG Dong-ming,LIU Jing,HE Fen,ZHANG Lian-meng.Thermal Residual Stress Analysis of TiN Coating on Titanium Alloy Substrate[J].Journal of Synthetic Crystals,2009,38(1):251-254. |
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| Authors: | CHEN Yong-guo ZHANG Dong-ming LIU Jing HE Fen ZHANG Lian-meng |
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| Institution: | 1.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing;Wuhan University of Technology;Wuhan 430070;China;2.College of Resources and Environmental Engineering;China |
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| Abstract: | Thermal residual stresses in TiN coatings were calculated by the finite element method.The influences of substrate and coating thickness on the thermal stress of TiN coating were investigated.The results show that the high tensile stress occurs in the substrate and the high compressive stress occurs in the coating,singularity field of shear stress occurs in sharp interface near the free boundary.The radial stress in coating layer decreases while the shear stress first increases then tends to be steady with ... |
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| Keywords: | TiN coating finite element thermal residual stress |
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