Effect of microparticle properties on erosion in solid-steam mixtures  

作　　者：XU WanLi WANG JiaDao ZHAO Wei CHEN DaRong 

机构地区：[1]Beijing Petroleum Oil and Lubricant Institute, Beijing 102300, China [2]State Key Laboratory of Tribology, Tsmghua University, Beijing 100084, China

出　　处：《Chinese Science Bulletin》2011年第9期933-937,共5页

摘　　要：Based on a custom-built experimental apparatus, irregular microparticles of different sizes and microparticles of the same size but of different shape were added to wet steam, and erosion experiments were performed on polished medium carbon steel specimens. After the experiments, the eroded surfaces were analyzed by scanning electron microscopy and the degree of damage was evaluated by area loss. The results indicated that microparticle size significantly affects the degree of erosion damage. With an increase in size, variations in the method of damage mainly cause different degrees of damage on an eroded surface. Microparticle shape hardly affects the number of craters. Compared with spherical microparticles, irregular microparticles cause indentations more easily and result in more severe abrasion on the material’s surface.Based on a custom-built experimental apparatus, irregular microparticles of different sizes and microparticles of the same size but of different shape were added to wet steam, and erosion experiments were performed on polished medium carbon steel specimens. After the experiments, the eroded surfaces were analyzed by scanning electron microscopy and the degree of damage was evaluated by area loss. The results indicated that microparticle size significantly affects the degree of erosion damage. With an increase in size, variations in the method of damage mainly cause different degrees of damage on an eroded surface. Microparticle shape hardly affects the number of craters. Compared with spherical microparticles, irregular microparticles cause indentations more easily and result in more severe abrasion on the material＇s surface.

关 键 词：固体微粒 侵蚀实验 湿蒸汽 混合物 扫描电子显微镜分析 性能 实验装置 损害程度 

分 类 号：TQ569[化学工程—炸药化工] S157.1[农业科学—土壤学]