高铬铸铁合金涂层的研究进展  

Research Status of High Chromium Cast Iron Coating

作　　者：项海亮[1] 姚成武[1] 李铸国[1] 

机构地区：[1]上海交通大学上海激光制造与材料改性重点实验室,上海200240

出　　处：《热加工工艺》2012年第14期157-160,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(50971091);科技部国际科技合作基金资助项目(2009DFB50350)

摘　　要：介绍了高铬铸铁的组织和性能特点,综述了高铬铸铁合金堆焊、等离子熔覆和激光熔覆涂层最新研究进展。分析了高铬铸铁合金涂层制备以及服役过程中的裂纹形成,提出了减少和消除涂层裂纹的途径,并对高铬铸铁合金涂层的发展作了展望。The microstructure and properties of high chromium cast iron were demonstrated. The recent research achievements of high chromium cast iron coating produced by arc surfacing, plasma cladding and laser cladding were reviewed. The causes of cracks formation in the process of preparation or in service were analyzed. The measures to decrease or prevent cracking were suggested. At last, the future prospects of high chromium cast iron coatings were involved.

关 键 词：高铬铸铁涂层 电弧堆焊 等离子熔覆 激光熔覆 

分 类 号：TG174[金属学及工艺—金属表面处理]