液固两相介质流中Cu-Cr-Zr合金的冲蚀磨损行为  

Erosion wear behavior of Cu-Cr-Zr alloy in liquid-solid two-phase flow

作　　者：刘勇[1] 龙永强[1] 刘平[1] 田保红[1] 

机构地区：[1]河南科技大学材料科学与工程学院,洛阳471003

出　　处：《中国有色金属学报》2007年第10期1650-1655,共6页The Chinese Journal of Nonferrous Metals

基　　金：国家高技术研究发展计划资助项目(2006AA03Z528);河南省杰出人才基金资助项目(0521001200);河南省教育厅自然科学基金资助项目(2006430004)

摘　　要：利用MCF-30冲蚀磨损实验机,对固溶态及随后经过不同形变热处理的Cu-Cr-Zr合金进行液固两相流冲蚀磨损实验,并运用扫描电镜对其微观形貌进行观察与分析。结果表明：在两种不同介质冲蚀磨损实验中,固溶态合金冲蚀磨损质量损失最大,且随形变时效后加工变形程度的增大,冲蚀磨损质量损失呈先逐渐下降然后上升的变化趋势;添加少量石英砂（10 g/L）后,合金冲蚀磨损质量损失约增加19%-35%;铜合金线材二次加工变形率在50%-80%之间时,具有良好的抗冲蚀磨损性能。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.

关 键 词：CU-CR-ZR合金 液固两相流 冲蚀磨损性能 变形率 

分 类 号：TG146.1[一般工业技术—材料科学与工程] TG172[金属学及工艺—金属材料]