激光熔覆耐磨铁基合金涂层研究现状  

Research process on laser cladding iron-based alloy coating with wear resistance

作　　者：尚凡敏 陈建志 马明志 杨鹏 芦笙[1] 陈靓瑜[1] 陈书锦[1] 王善林[4] SHANG Fanmin;CHEN Jianzhi;MA Mingzhi;YANG Peng;LU Sheng;CHEN Liangyu;CHEN Shujin;WANG Shanlin(School of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,Jiangsu,China;School of Mechanical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,Jiangsu,China;CRRC Qishuyan Institute Co.,Ltd.,Changzhou 213011,Jiangsu,China;Nanchang Hangkong University,Jiangxi Key Laboratory Forming&Joining Technology Aerospace Component,Nanchang 330063,Jiangxi,China)

机构地区：[1]江苏科技大学材料科学与工程学院,江苏镇江212003 [2]江苏科技大学机械工程学院,江苏镇江212003 [3]中车戚墅堰机车车辆工艺研究所有限公司,江苏常州213011 [4]南昌航空大学轻合金加工国防重点学科实验室,江西南昌330063

出　　处：《金属加工(热加工)》2025年第2期12-19,共8页MW Metal Forming

基　　金：中国博士后科学基金第73批面上资助项目(No.2023M731394,No.2023M730939);轻合金加工科学与技术国防重点学科实验室开放课题资助(No.EG202380296);江苏科技大学科研启动经费(No.1062932213)。

摘　　要：磨损失效作为机械部件的主要失效形式之一,会造成巨大的能源消耗和材料损失。激光熔覆技术作为我国重点发展的再制造技术之一,具有修复效率高、性能优异、绿色环保的特点。综合考虑熔覆层与基体材料的热膨胀系数、熔点及润湿性等匹配性因素,铁基合金成为激光熔覆再制造的主要合金材料之一。结合国内外最新相关研究成果,从合金成分、外加强化相、激光熔覆工艺参数(激光功率、扫描速率、送粉率)等方面对激光熔覆铁基合金耐磨性能的影响进行了综述,系统讨论了合金成分、外加强化相、激光熔覆工艺参数对铁基熔覆层耐磨性能的影响机理,并介绍了铁基熔覆层的磨损失效机理。最后对激光熔覆高耐磨铁基合金涂层的未来发展方向进行了展望。as one of the main failure forms of mechanical parts,wear failure causes huge energy expend and material loss.Laser cladding technology is one of the key remanufacturing technologies with the characteristics of high repair efficiency,excellent performance and green environmental protection.Considering the matching factors of thermal expansion coefficient,melting point and wettability between cladding layer and base material,iron-based alloy has become one of the main alloy materials for laser cladding remanufacturing.Combined with the latest relevant research results,the wear resistance of iron-based alloys fabricated by laser cladding is reviewed from the aspects of alloy composition,enhanced phase,laser cladding process parameters(laser power,scanning rate,powder feeding rate),etc.The influence mechanism of alloy composition,enhanced phase and laser cladding process parameters on the wear resistance of iron-based cladding layers is systematically discussed.The wear failure mechanism of ironbased cladding layer is also introduced.Finally,the future development direction of high wear-resistant iron-based alloy coating by laser cladding is prospected.

关 键 词：激光熔覆 合金涂层 耐磨 铁基合金 

分 类 号：TG1[金属学及工艺—金属学]