Research on Preparation and Tribological Properties of CrAlN Coating on Cr12MoV Steel 在线阅读 下载PDF
Author of the article:TANG Hui;ZHOU Zhiming;HU Fengrong;ZHANG Jun;CHEN Wenxiong;ZENG Xiao;CHEN Xi
Author's Workplace：School of Materials Science and Engineering,Chongqing University of Technology,Chongqing 400054,China;Panzhihua Steel Group Jiangyou Changcheng Special Steel Co.,Ltd.,Mianyang 621701,China;Chengdu Advanced Metal Material Industry Technology Research Institute Co.,Ltd.,Chengdu 610300,China;Chongqing Changan Industry Co.,Ltd.,Chongqing 401135,China
Key Words：multi-arc ion plating Cr12MoV steel CrAlN coating nitriding layer wear resistance
Abstract：In order to improve the surface hardness and wear resistance of Cr12MoV steel,the surface of Cr12MoV steel was nitrided by plasma nitriding technology,and the CrAlN coating was prepared on the surface of nitriding layer and substrate by multi-arc ion plating technology.The micromorphology,microhardness and friction and wear properties of Cr12MoV steel substrate,nitriding layer and CrAlN coating were analyzed.The results show that the hardness of CrAlN coating after nitriding is up to 3347 HV,which is 1.7 times of that of CrAlN coating without nitriding and 11.8 times of that of Cr12MoV steel substrate.CrAlN coating improves the surface hardness and wear resistance of Cr12MoV steel,and the wear mechanism is mainly adhesive wear.Nitriding treatment improves the adhesion between Cr12MoV steel and CrAlN coating,and further improves the wear resistance of CrAlN coating.
