Microstructure and property of Ni/Co/Al2O3 laser cladding layer on the surface of mold copper plate

摘要：

　　Ni/Co/Al2O3 composite coatings are prepared on the surface of mold copper plate with Laser cladding of Co42 powders as cladding layer and Ni/Al2O3 nanocomposte as interlayer, the microstructure, hardness and corrosion resistance of layers are analyzed by OM,SEM, microhardness tester and electrochemical system.The results indicate that Ni/Al2O3 nanocomposte is compact and uniform with fine grain.Laser cladding layer.Under the condition of 4.5 kW laser power and 240 mm/min scanning speed, the laser cladding layer is metallurgical bonded to the substrate excellently,the grain of the laser cladding layer is refined, the laser cladding has a average microhardness value of 1000HV and excellent corrosion resistance.

关键词： mold copper plate laser cladding Ni/Co/Al2O3 composite coatings microstructure

作者: WANG Yiyong SU Jianming ZHANG Junwei JIN Hui

作者单位: Laser Advanced Manufacturing Technology Center, University of Science and Technology Liaoning, Anshan 114051, China

会议类型: 国际会议

会议名称: The 2nd International Conference on Energy and the Future of Heat Treatment and Surface Engineering(第2届未来热处理及表面工程与能源国际会议暨2014年北京香山材料热处理与表面工程国际论坛)

会议地点: 北京

会议语种:英文

页码: 252-258

在线出版日期: 2014-10-11（万方平台首次上网日期，不代表论文的发表时间）