C61900铜合金表面镀渗复合工艺改性  

Surface modification of C61900 copper alloy using a composite technology via coating and doping

作　　者：邹博华 闫牧夫[2] 朱艳丹[2] 王祎雪[2] 王玥[2] 

机构地区：[1]哈尔滨工业大学理学院,黑龙江哈尔滨150001 [2]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150001

出　　处：《金属热处理》2016年第11期184-189,共6页Heat Treatment of Metals

基　　金：国家自然科学基金(U15317201;51371070)

摘　　要：对C61900铜合金镀钛-渗碳复合工艺进行了研究,首先采用了闭合场非平衡磁控溅射镀钛膜,再利用等离子体渗碳在铝青铜合金表面制备出了镀钛渗碳改性层;然后对改性层表面进行了硬度、摩擦磨损、SEM、EDS、XRD表征。结果显示:最佳等离子渗碳工艺参数为650℃保温时间6 h,将铝青铜表面硬度提高到了300 HV0.01以上,是铝青铜基体的3.8倍以上,并使其磨损率降低了近90%,解决了C61900铜合金表面硬度低耐磨性差的问题。Composite surface modification for C61900 copper alloy via titanizing and carburizing was investigated. Firstly,Ti film was deposited on the copper alloy substrate by closed field unbalanced magnetron sputtering,subsequently the plasma carburization was carried out on the Ti coated copper alloy. Then,the surface and cross-sectional morphologies and elements distribution in the composite modified layer were characterized by SEM,EDS and XRD. Additionally,the microhardness and wear resistance of the modified layer were also measured. The experimental results show that the best carburizing parameters are the plasma carburizing at 650 ℃ for 6 h,and the surface hardness of the modified C61900 copper alloy can be enhanced to over 300 HV0. 01 as 3. 8 times of that of the untreated one. Meanwhile,the wear rate decreased about 90% comparing with the untreated one. The problems of lower hardness and poor wear resistance of the C61900 copper alloy surface are solved.

关 键 词：C61900铜合金 镀钛-渗碳复合改性 硬度 磨损率 

分 类 号：TG174.445[金属学及工艺—金属表面处理]