(1. 河南科技大學(xué) 材料科學(xué)與工程學(xué)院，洛陽 471003；2. 上海交通大學(xué) 材料科學(xué)與工程學(xué)院，上海 200030)
摘 要: 利用MCF−30沖蝕磨損實(shí)驗(yàn)機(jī)，對固溶態(tài)及隨后經(jīng)過不同形變熱處理的Cu-Cr-Zr合金進(jìn)行液固兩相流沖蝕磨損實(shí)驗(yàn)，并運(yùn)用掃描電鏡對其微觀形貌進(jìn)行觀察與分析。結(jié)果表明：在兩種不同介質(zhì)沖蝕磨損實(shí)驗(yàn)中，固溶態(tài)合金沖蝕磨損質(zhì)量損失最大，且隨形變時(shí)效后加工變形程度的增大，沖蝕磨損質(zhì)量損失呈先逐漸下降然后上升的變化趨勢；添加少量石英砂(10 g/L)后，合金沖蝕磨損質(zhì)量損失約增加19%~35%；銅合金線材二次加工變形率在50%~80%之間時(shí)，具有良好的抗沖蝕磨損性能
關(guān)鍵字: Cu-Cr-Zr合金；液固兩相流；沖蝕磨損性能；變形率
（1. School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China;2. School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China）
Abstract:Using MCF-30 erosion wear resistance testing machine, the liquid-solid two-phase flow erosion wear test of Cu-Cr-Zr alloy contact wire solution treated or drawn in different deformation ratios subsequently were carried out in two mediums imitating the environments of industrial atmosphere and trace addition of arenaceous quartz in it. The morphology of Cu-Cr-Zr alloy was observed by SEM. The results show that the value of mass loss ratio of the soluted alloy is the highest and those of the other alloys decrease gradually while then rise slightly with the increasing deformation ratio. With trace addition (10 g/L) of arenaceous quartz, the values of mass loss ratio of the tested alloys are increased by about 19%−35%. These Cu-Cr-Zr alloys with 50%−80% deformation ratio have better erosion wear resistance based on this experiment.
Key words: Cu-Cr-Zr alloy; liquid-solid two-phase flow; erosion wear resistance; deformation ratio
