Q235钢基体表面微晶玻璃功能梯度涂层的残余应力分析  

Residual stress analysis in functionally gradient glass-ceramic coatings on Q235 steel

作　　者：周黎明[1] 龚伟[1,2] 王恩泽[3] 韩腾[1] 

机构地区：[1]西南科技大学制造科学与工程学院,四川绵阳621010 [2]中国工程物理研究院,四川绵阳621900 [3]西南科技大学材料科学与工程学院,四川绵阳621010

出　　处：《金属热处理》2014年第5期141-144,共4页Heat Treatment of Metals

基　　金：四川省教育厅重点项目(10ZA020);四川省大学生创新创业训练项目(201310619046)

摘　　要：运用ANSYS有限元软件对Q235钢/微晶玻璃梯度涂层复合材料在制备过程中产生的残余应力进行了数值模拟。建立了该复合材料的有限元分析模型,探讨了不同层数、层厚对该复合材料体系残余应力分布的影响。结果表明:在基体与梯度涂层的界面边缘处存在较大的应力集中;随着层数或层厚的增加,涂层表面最大径向残余压应力增大;梯度层数和涂层厚度对界面处的残余应力都有明显影响。此模拟分析结果可以为该梯度涂层复合材料的设计和制备提供理论依据和参考。The residual stress of Q 235 steel/glass-ceramic gradient coatings was simulated with the commercial software ANSYS .The finite element analysis model of the composite was established and the distributions of residual stress in the composite system had been investigated based on various the layer numbers and the coating thickness .The results show that there is a remarkable stress concentration near the edge of the interface between substrate and coating .The maximum radial stress on the coating surface increase with the layer number or the coating thickness increasing .The layer numbers and the thickness of gradient coatings have a significant effect on the residual stress at the interface between substrate and coating .The simulation results can be used to provide theoretical guidance for the design and preparation of the composite.

关 键 词：微晶玻璃 功能梯度涂层 残余应力 有限元法 

分 类 号：TG174.45[金属学及工艺—金属表面处理]