轻工机械2011，Vol.29Issue(4)：87-91,5.DOI:10.3969/j.issn.1005-2895.2011.04.022
激光熔覆H13-TiC复合涂层的力学性能测试与数值模拟
Measurement and Numerical Simulation of Mechanical Properties for Laser Clad H13-TiC Composite Coatings
摘要
Abstract
In order to improve the performance and longevity of the die steel, H13-TiC composite layers were made by laser cladding on the H13 die steel substrates. The influences of TiC content on mechanical properties of Hl3-TiC composite layer were studied. The fracture surfaces of various tensile specimens were analyzed respectively. The results indicate that the strength and hardness of the composite layers are obviously improved compared with the parent metal owing to the combined action of dispersive strength and thin grain of TiC, and the brittle fracture as well as the ductile fracture were found in the fracture of composite layers. And then, the elasto-plastic properties of the H13-TiC composite layers were discussed based on Mori-Tanaka method, the results show diat the predictions of the model agree with experiments well.关键词
模具材料/激光熔覆/复合涂层/力学性能/Mori-TanakaKey words
mold/laser cladding/composite layers/mechanical properties/Mori-Tanaka分类
矿业与冶金引用本文复制引用
侯义芳,顾盛挺,鲍雨梅,柴国钟..激光熔覆H13-TiC复合涂层的力学性能测试与数值模拟[J].轻工机械,2011,29(4):87-91,5.基金项目
国家自然科学基金(50675205) （50675205）
