液固两相流冲刷腐蚀研究  

Study on the Slurry Erosion-Corrosion

作　　者：刘新宽[1] 方其先[1] 

机构地区：[1]西安交通大学

出　　处：《水利电力机械》1998年第5期33-35,共3页Water Conservancy & Electric Power Machinery

基　　金：西安交通大学金属材料强度国家重点实验室资助项目

摘　　要：研究了机械性能和耐蚀性对材料在液固两相流中冲刷腐蚀的作用。结果表明，即使在弱酸性液固两相流中，材料的耐蚀性对冲刷腐蚀作用最大，机械性能只在冲刷速度高时才有作用，且在材料耐蚀性相近时，其作用才有显著表现。材料的性能影响不同冲刷角度时的冲刷腐蚀规律。对于Ｔ１０钢等脆性材料，冲刷腐蚀失重随冲刷角度增大而单调增加，在冲刷角为９０°时最大。而塑性材料１Ｃｒ１７Ｍｏ２的冲刷腐蚀失重在３０°左右时出现峰值，在９０°时为最大。The effects of mechanical properties and corrosion resistance of materials on the erosion-corrosion(E-C)in liquid-solid slurry were investigated using rotating method test apparatus with plate specimen lt was showed that the influence of corrosion resistance on the E-C weight loss rate with variant flow velocities was much greater than that of mechanical properties in weak acidic media.However,the characteristics of the E-C with variant impact angle was determined by the mechanical properties for the brittle materials,the weight loss rate increased with the increasing of impact angle and got to the maximum at 90 degree,while for ductile materials,the weight loss rate had a peak value at approximately 30 degree and reached to maximum at 90 degree.

关 键 词：冲刷腐蚀 机械性能 耐蚀性 液固两相流 金属腐蚀 

分 类 号：TG172.85[金属学及工艺—金属表面处理]