文献类型：期刊文献

英文题名：Effects of re-melting process parameters on the forming quality of the Stellite 6/WC laser cladding layer

作者：Wu, Teng[1];Shi, Wenqing[1];Xie, Linyi[1];Gong, Meimei[1];Huang, Jiang[1];Xie, Yuping[1];He, Kuanfang[2]

机构：[1]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[2]Foshan Univ, Sch Mechatron Engn & Automation, Foshan 528000, Peoples R China

年份：2022

卷号：269

外文期刊名：OPTIK

收录：SCI-EXPANDED(收录号：WOS:000877797400009)、、EI(收录号：20223612702205)、Scopus(收录号：2-s2.0-85137158067)、WOS

基金：This work was supported by the National Natural Science Foundation of China [Grant numbers 62073089] , the Special Project for Key Fields of Higher Education in Guangdong Province [Grant numbers 2020ZDZX2061] , and the Postgraduate Education Innovation Project of Guangdong Ocean University [Grant numbers 040502112103] .

语种：英文

外文关键词：Laser re -melting; Laser cladding; Dilution rate; Microhardness; Wear resistance

外文摘要：A Stellite 6/WC composite coating was prepared on a 60Si2Mn substrate using the method of combing laser cladding and laser re-melting. The effect of different re-melting powers (1400 W, 1500 W and 1600 W) and re-melting scanning speeds (300 mm/min, 500 mm/min and 700 mm/ min) on the geometry, microstructure, microhardness and wear resistance of the Stellite 6/WC composite coating was investigated. The research results show that the laser re-melting process can improve the forming quality of the coating and reduce defects such as pores and cracks, but any excessive re-melting power and scanning speed may result in the reoccurrence of defects. With the increase in the re-melting scanning speed, the composite coating shows the evidence of grain refinement. The re-melting power has no significant effect on the microhardness of the coating. When the re-melting scanning speed is 700 mm/min, the microhardness and wear resistance of the corresponding composite coating are the best among all coatings.