Wear resistance and hot corrosion behaviour of laser cladding Co-based alloy

作     者：张松 张春华 吴维 文効忠 王茂才 

作者机构：Shenyang Polytech Univ Sch Mat Sci & Engn Shenyang 110023 Peoples R China Chinese Acad Sci State Key Lab Corros & Protect Met Shenyang 110016 Peoples R China Hong Kong Polytech Univ Dept Mfg Engn Hong Kong Hong Kong Peoples R China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报(英文版))

年 卷 期：2001年第11卷第6期

页      面：838-842页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：ProjectsupportedbytheStateKeyLaboratoryforCorrosionandProtectionofMetals 

主　　题：laser cladding Co based alloy wear resistance hot corrosion 

摘      要：Cr13 stainless steel was surface cladded with Co based alloy using a high power carbon dioxide laser. The microstructure, wear resistance and corrosion properties of the clad layer were investigated. It is found that the high temperature corrosion behavior and wearing resistant property of the clad layer are 3 and 2.5 times higher than those of the parent metal. Under the high temperature molten lead sulphate salt corrosion condition, the clad layer fails by spalling which is caused by intergrannular corrosion within the clad layer. The fine dendritic structure and the oxide help to retard the penetration of the sulphur ion that induces the intergrannular corrosion.