CAJ | 학술논문

采用真空感应熔炼炉制备 Cu-Ag、Cu-Ag-Zr 以及 Cu-Ag-Zr-Ce 合金,利用自制且能模拟接触线实际运行工况的载流磨损试验机对各不同合金线材的电滑动磨损性能进行研究,并借助扫描电镜对磨损前后 Cu-Ag-Zr-Ce合金的组织形貌进行分析.结果表明:Cu-Ag-Zr-Ce 线材的磨损率随着加载电流和滑行距离的增大而增大;粘着磨损、磨粒磨损和电侵蚀磨损是 Cu-Ag-Zr-Ce 线材电滑动磨损的主要机制.在同种实验条件下,Cu-Ag-Zr-Ce 线材的耐磨性能优于 Cu-Ag-Zr 和 Cu-Ag 合金的耐磨性能,相同实验条件下 Cu-Ag 合金的磨损率为 Cu-Ag-Zr-Ce 和Cu-Ag-Zr 合金磨损率的2~4倍.
채용진공감응용련로제비 Cu-Ag、Cu-Ag-Zr 이급 Cu-Ag-Zr-Ce 합금,이용자제차능모의접촉선실제운행공황적재류마손시험궤대각불동합금선재적전활동마손성능진행연구,병차조소묘전경대마손전후 Cu-Ag-Zr-Ce합금적조직형모진행분석.결과표명:Cu-Ag-Zr-Ce 선재적마손솔수착가재전류화활행거리적증대이증대;점착마손、마립마손화전침식마손시 Cu-Ag-Zr-Ce 선재전활동마손적주요궤제.재동충실험조건하,Cu-Ag-Zr-Ce 선재적내마성능우우 Cu-Ag-Zr 화 Cu-Ag 합금적내마성능,상동실험조건하 Cu-Ag 합금적마손솔위 Cu-Ag-Zr-Ce 화Cu-Ag-Zr 합금마손솔적2~4배.
Cu-Ag, Cu-Ag-Zr and Cu-Ag-Zr-Ce alloys were produced by using a vacuum induction furnace. The electrical sliding wear properties of different alloys wires were studied by a self-made sliding wear tester that can simulate the tribological conditions of sliding current collectors on contact wires. The morphologies of Cu-Ag-Zr-Ce alloy before and after wear were analyzed by scanning electron microscope. The results show that the wear rate of the Cu-Ag-Zr-Ce alloy increases with increasing electrical current and sliding distance. The adhesive wear, abrasive wear and electrical erosion are the dominant mechanisms of the Cu-Ag-Zr-Ce alloy during the electrical sliding processes. Compared with Cu-Ag and Cu-Ag-Zr alloys under the same test condition, Cu-Ag-Zr-Ce alloy has much better wear resistance. The wear rate of the Cu-Ag alloy is 2?4 times as large as that of Cu-Ag-Zr and Cu-Ag-Zr-Ce alloys.