Structure design of gradient hard coatings on YG8 and their residual stress analysis by ANSYS  

作　　者：宋慧瑾 Yan Qiang Dong Zhihong Guo Wei Tang Yirong 

机构地区：[1]College of Mechanical Engineering, Chengdu University, Chengdu 610106, P. R. China

出　　处：《High Technology Letters》2017年第3期330-336,共7页高技术通讯（英文版）

基　　金：Supported by the National High Technology Research and Development Programme of China(No.2012AA09A203);Project of Sichuan Education Department(No.14ZA0321)

摘　　要：A structure of gradient hard coatings( Ti,TiN,TiCN and TiAlN) is designed,and residual stress is simulated by a finite element method with ANSYS. The influence of the realistic situation including load and temperature on the residual stress of the coatings is investigated. Simulated results show that the realistic situation strongly affects the residual stress. To be specific,i) The main residual stress concentrates on the coatings prepared on YG8 substrate,and the residual stress and its gradient of the coatings are bigger than that of the substrate; ii) TiAlN and TiCN coatings have better resistance compression than that of TiN coatings in the same condition; iii) The improved multilayer structure of the gradient hard coatings produces weaker residual stress but higher anti-pressure of the substrate.A structure of gradient hard coatings（ Ti,TiN,TiCN and TiAlN） is designed,and residual stress is simulated by a finite element method with ANSYS. The influence of the realistic situation including load and temperature on the residual stress of the coatings is investigated. Simulated results show that the realistic situation strongly affects the residual stress. To be specific,i） The main residual stress concentrates on the coatings prepared on YG8 substrate,and the residual stress and its gradient of the coatings are bigger than that of the substrate; ii） TiAlN and TiCN coatings have better resistance compression than that of TiN coatings in the same condition; iii） The improved multilayer structure of the gradient hard coatings produces weaker residual stress but higher anti-pressure of the substrate.

关 键 词：gradient coating ANSYS residual stress hard coatings 

分 类 号：TQ630.1[化学工程—精细化工]