摘要
采用往复磨损实验机完成了Zr-4合金/Al2O3摩擦副在Na2SO4溶液中的腐蚀磨损实验。试验在改变负荷及试样的阳极/阴极面积比时,对腐蚀磨损的影响作了分析。用三坐标表面粗糙度仪测量了磨损体积,利用脉冲电位评价磨损产生的新生面与磨损表面的关系。结果表明:随着负荷的增加,自然电位下降而磨损量成正比例增加。电化学腐蚀作用随试样阳极/阴极的面积比的减小而增大。磨损面损伤的主要表现为磨粒磨损和粘着磨损的共同作用。
A corrosion wearing test of the Zr-alloy against Al2O3 in Na2SO4 solution was carried out. The effect of load and anode/cathode area ratio on the abrasive wear of Zr-alloy was analyzed using the reciprocating abrasion testing machine. The wear volume was measured with 3D measuring instruments and the relationship between the fresh surface that fretting wear produces and worn surface was evaluated with the potential pulse method. The experimental result shows that the natural electric potential decreases and the wear increases proportionally with the load increasing. The electrochemical corrosion resulting from anode/cathode area ratio gradually increases contrary to the ratio decrement. The combined action from abrasive wear and condensate wear produces the abrasive surface damage.
出处
《润滑与密封》
CAS
CSCD
北大核心
2007年第12期58-61,共4页
Lubrication Engineering
基金
教育部留学回国人员科研启动基金资助项目
人事部留学回国人员科研启动基金资助项目
嘉兴市人事局留学回国人员科研启动资助项目
