文献类型：期刊文献

中文题名：激光熔覆Ni基复合涂层的微观组织与性能研究

英文题名：Study on Microstructure and Properties of Laser Cladding Ni-based Composite Coating

作者：赵阳[1];朱志凯[1];黄江[1,2];师文庆[1];李凯玥[1]

机构：[1]广东海洋大学电子与信息工程学院,广东湛江524088;[2]广东省智慧海洋传感网及其装备工程技术研究中心,广东湛江524088

年份：2025

卷号：54

期号：19

起止页码：161

中文期刊名：热加工工艺

外文期刊名：Hot Working Technology

收录：北大核心2023、、北大核心

基金：国家自然科学基金项目(62073089);广东省教育厅特色创新项目(Q19012);广东省普通高校重点领域专项项目(2020ZDZX2061)。

语种：中文

中文关键词：316L不锈钢;激光熔覆;Ni基复合涂层;WC

外文关键词：316L stainless steel;laser cladding;Ni-based composite coating;WC

中文摘要：为了探究激光熔覆Ni基复合涂层的微观组织与性能,采用激光熔覆技术在316L不锈钢表面制备Ni60/WC复合涂层,利用光学显微镜、X射线衍射仪等研究了涂层的形貌和相结构;采用显微硬度计和电化学工作站等设备表征了涂层的硬度分布和耐腐蚀性能。结果表明,涂层与基材结合良好,稀释率为28.6%;涂层中生成了Cr_(0.19)Fe_(0.7)Ni_(0.11)、Ni_(2.9)Cr_(0.7)Fe_(0.36)和FeNi_(3)等金属化合物以及CoC_(x)等碳化物。涂层的硬度为316L不锈钢的3.5倍,耐腐蚀性也得到了显著提高,碳化物增强相的形成是涂层硬度、耐腐蚀性提高的主要原因,此研究结果对激光熔覆添加WC的Ni60制备有一定指导作用。

外文摘要：In order to explore the influence of the microstructure and performance of laser coated Ni-based composite coating,Ni60/WC composite coating was prepared on 316L stainless steel surface by laser cladding technique.The morphology and phase structure of the coating were studied by optical microscope and X-ray diffraction.The hardness distribution and corrosion resistance of the coating were characterized by microhardness tester and electrochemical workstation.The results show that the coating is well bonded with the substrate,and the dilution rate is 28.6%.Metal compounds such as Cr_(0.19)Fe_(0.7)Ni_(0.11)、Ni_(2.9)Cr_(0.7)Fe_(0.36)and FeNi_(3),and carbides such as CoC_(x)are formed in the coating.The hardness of the coating is 3.5 times than that of 316L stainless steel,and the corrosion resistance of the coating is also significantly improved.The formation of carbide reinforcing phase is the main reason for the improvement of the hardness and corrosion resistance of the coating.The results can guide the preparation of Ni60 with WC.