2024铝合金表面镀CrN_x多层膜的研究.pdfVIP

第 28 卷 　第 5 期 真 　空 　科 　学 　与 　技 　术 　学 　报 　　　　　　　 　　　　　　　　　　　 2008 年 9 、10 月 CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY 445 　 2024 铝合金表面镀 CrNx 多层膜的研究 1 2 1 1 1 1 张礼平 　李剑锋 　李国卿 　王兆松 　李晓娜 　董 　闯 ( 1. 大连理工大学三束材料改性国家重点实验室 　大连 　116024 ;2 . 大连交通大学 　大连 　116028) Cr N Coatings by MultiArc Ion Plating on x 2024 Al Alloy Substrates 1 2 1 1 1 1 Zhang Liping ,Li Jianfeng ,Li Guoqing ,Wang Zhaosong ,Li Xiaona ,Dong Chuang ( 1. State Key L aboratory f or M aterials Modfi ication by L aser , Ion and Electron B eams , Dalian University of Technology , Dalian 116024 , China ;2. Dalian J iaotong University , Dalian 116028 , China) 　　 Abstract 　A novel technique has been successfully developed to modify the 2024 aluminum surfaces with Zn/ Ni/ Cu/ CrNx multicoatings ,and to ease up the thermal and structural mismatches at the interface of the coatings and the sub strate . In the technique ,the processes the substrate went through include the zinc dipping twice ,chemical plating of Ni , electroplating of Cu as the transition layer ,pulsed bias multiarc ion plating of Cr/ CrNx for the growth of Zn/ Ni/ Cu/ Cr/ CrNx gradient multicoatings. The microstructures and mechanical properties of the coating were characterized with Xray diffraction (XRD) ,scanning electron microscopy ( SEM) and conventional probes. The result