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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。
The titanium-carburizing composite process of C61900 copper alloy was studied. Firstly, closed-field unbalanced magnetron sputtering titanium coating was used, and then plasma carburizing was used to prepare the surface of aluminum bronze alloy with titanium carburizing modification Then, the surface of the modified layer was characterized by hardness, friction and wear, SEM, EDS and XRD. The results show that the optimum plasma carburization process parameters are 650 ℃ holding time of 6 h, the aluminum bronze surface hardness increased to 300 HV0.01 or more, which is 3.8 times more than aluminum bronze matrix, and the wear rate is reduced by nearly 90% , To solve the low surface hardness C61900 copper alloy wear resistance problems.