接触线用铜合金剥层磨损行为  

Delamination wear behavior of contact wire used copper alloy

作　　者：刘勇[1] 龙永强[1] 田保红[1] 刘平[2] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003 [2]上海理工大学机械工程学院,上海200093

出　　处：《功能材料》2008年第3期392-394,402,共4页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2006AA03Z528);河南省教育厅自然科学基金资助项目(2006430004);河南科技大学基金资助项目(2007ZY060)

摘　　要：对高速电气化铁路接触线用Cu-Cr-Zr合金电磨损性能和磨损机制进行了研究。结果表明，在试验条件下，在合金接触线-黄铜粉末冶金滑块系统的电磨损过程中，Cu-Cr-Zr合金接触线的电磨损率随电流强度升高显著加强，由加栽较小电流引起的磨损份额为0．16％～0．34％上升至电流强度较大时的7．82％～17．21％；未加载电流时，剥层磨损的体积损失在总磨损体积损失中所占比例高达94．70％，表明该机制为舍金接触线主要机械磨损机制。The electrical wear resistances of Cu-Cr-Zr alloy contact wire used in high-speed electrical railway were investigated in this paper. In this experiment, the results show that the electrical wear ratio of the tested Cu-Cr- Zr alloy increased obviously with the enhanced currents in the electrical wear course of the contact wire vs. brass power metallurgy slide block system. The increased wear volume lost proportion brought by the currents is in the range of 0. 16%-0. 34% under less current, meanwhile that of higher current rose to the range of 7.82%-17.21%. The proportion value of the delamination wear volume lost is 94.70% of total wear volume lost, and it is the primary mechanical wear mechanism of the contact wire without electrical current.

关 键 词：CU-CR-ZR合金 电磨损率 剥层磨损 磨损机制 

分 类 号：TG146.1[一般工业技术—材料科学与工程] TH117.1[金属学及工艺—金属材料]