CrN涂层与高速钢基体的形变适应性模拟  

Simulation of deformation adaptability between CrN coating and high speed steel substrate

作　　者：由琪 周艳文[1] 粟志伟 闫彩波 赵卓 YOU Qi;ZHOU Yanwen;SU Zhiwei;YAN Caibo;ZHAO Zhuo(School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,China;School of Chemical Engineering,University of Science and Technology Liaoning,Anshan 114051,China)

机构地区：[1]辽宁科技大学材料与冶金学院,辽宁鞍山114051 [2]辽宁科技大学化学工程学院,辽宁鞍山114051

出　　处：《辽宁科技大学学报》2024年第6期423-429,471,共8页Journal of University of Science and Technology Liaoning

基　　金：国家自然科学基金资助项目(52271056)。

摘　　要：为了提高W6高速钢的综合力学性能,利用热丝增强等离子体磁控溅射技术在其表面制备CrN涂层,并表征涂层性能。利用ABAQUS软件模拟正应力和正切应力下涂层与基体的形变过程,分析涂层失效机理。沉积涂层后硬度提高到23.09 GPa,磨损率降低至9.7×10^(-6)mm^(3)/(N·m),受正应力和正切应力时均具备良好的协同变形性。模拟结果表明,膜-基界面处受拉应力最大,涂层失效优先起始于界面;划痕模拟中,涂层表面所受应力频繁波动,应力不断累积导致涂层内聚失效。In order to improve the mechanical properties of W6 high speed steel,chromium nitride(CrN)coating was prepared on its surface by hot-wire plasma-enhanced magnetron sputtering system and its properties were characterized.The deformation process of coating and substrate under normal stress and tangent stress were simulated by ABAQUS software,and the failure mechanism of coating was analyzed.After deposition of CrN coating,the hardness increases to 23.09 GPa,the wear rate decreases to 9.7×10^(-6) mm^(3)/(N·m),and it exhibited excellent co-deformation when subjected to normal stress and tangent stress.The simulation results show that the tensile stress is the largest at the coating-substrate interface,and the coating failure preferentially starts at the interface.The stress on the coating surface fluctuates frequently in the scratch simulation,and the cohesive force failure of the coating due to the continuous accumulation of stress.

关 键 词：W6高速钢 CRN涂层 磁控溅射 形变适应性 耐磨性 

分 类 号：TG178[金属学及工艺—金属表面处理]