表面技术2011，Vol.40Issue(1)：5-7,3.
NAK80模具钢表面激光熔覆Ni基碳化钨合金涂层的组织和性能
Microstructure and Properties of Laser Cladding Ni-based Tungsten Carbide Alloy Coating on NAK80 Mold Steel
摘要
Abstract
The Ni-based tungsten carbide alloy coating was fabricated on NAK80 mold steel by laser cladding technology. The characteristic of microstructure, micro-hardness and the formation mechanics were examined. The resuits show that the metallurgical bonding is good between the cladding coating and the steel substrate, the microstructure of laser cladding coating is composed of fir-tree crystal Cr23C6, un-melted tungsten carbide granular crystal, y-Ni solid solution and NiCr, CrB2. The micro-hardness of laser cladding coating is considerably higher than the substrate, so the wear-resisting property of mold surface is improved to some extent.关键词
NAK80模具钢/激光熔覆/Ni基碳化钨合金/组织/性能Key words
NAK80 mold steel/ laser cladding/ Ni-based tungsten carbide alloy/ microstructure/ properties分类
矿业与冶金引用本文复制引用
程虎,方志刚,赵先锐,戴晟,高玉新..NAK80模具钢表面激光熔覆Ni基碳化钨合金涂层的组织和性能[J].表面技术,2011,40(1):5-7,3.基金项目
浙江省分析测试科技计划项目(2009F70048) （2009F70048）
