激光技术2024，Vol.48Issue(5)：677-683,7.DOI:10.7510/jgjs.issn.1001-3806.2024.05.010
WC对316L钢表面的镍基激光熔覆涂层的性能影响研究
Effect of WC on the properties of Ni-based laser cladding coating on 316L substrate
摘要
Abstract
In order to improve the corrosion resistance of 316L stainless steel and prolong its service life in the marine environment,this paper discusses the method and effect of laser cladding technology on the surface of 316L substrate by cladding pure Ni60 coating and WC+Ni60 composite coating.The WC+Ni60 composite coating combines the hardness of WC particles and the toughness of Ni60 matrix,which has better comprehensive performance and is suitable for higher strength protection of the substrate surface.The coatings were retrieved and tested by hardness tester,X-ray diffractometer and electrochemical workstation,respectively.The results show that the average cross-sectional hardness of the WC+Ni60 composite coating is 719 HV,but the fluctuation in each region is large.At the same time,the surface of the cladding layer is more resistant to corrosion than the pure Ni60 coating.The self-corrosion potential is increased by 0.12 V,and the self-corrosion current density is reduced by 2.49×10-6 A/cm2.This study provides a reference for the later preparation of seawater corrosion resistant composite coatings.关键词
激光技术/激光熔覆/微观组织/硬度/耐腐蚀性Key words
laser technique/laser cladding/microstructure/hardness/corrosion resistance分类
金属材料引用本文复制引用
吴敬权,李德荣,安芬菊,黄江,王有明,吴香林..WC对316L钢表面的镍基激光熔覆涂层的性能影响研究[J].激光技术,2024,48(5):677-683,7.基金项目
国家自然科学基金项目(62073089) （62073089）
广东海洋大学研究生创新教育项目(2023SFKC_01) （2023SFKC_01）
湛江市科技计划资助项目(2021A05171) （2021A05171）
