安徽工程大学学报2025，Vol.40Issue(3)：28-36,9.
SLM制备Mo/18Ni300不锈钢复合材料的组织及力学性能研究
Study on Microstructure and Mechanical Properties of Mo/18Ni300 Stainless Steel Composite Prepared by SLM
摘要
Abstract
18Ni300,as a high-strength steel has a disadvantage of low plasticity.In this study,Mo/18Ni300 metal matrix composites were prepared by Selective lasermelting(SLM),and the effect of spherical metal Mo particles as reinforcement on the microstructure and mechanical properties of SLM-18Ni300 martensitic stainless steel was investigated.Under the optimal process parameters:laser power of 380W and scanning speed of 560 mm/s,Mo/18Ni300 composite material has the best comprehensive performance,with its density is 99.81%.The Mo particles in the sample are uniformly distributed in spherical shape and have a good metallurgical interface with the matrix.Meanwhile,some Mo particles are diffused into the matrix in the form of elements.With the increase of Mo content,the austenite content in the matrix showed an increasing trend.The tensile strength of SLM printed Mo/18Ni300 with 2 wt.%and 6 wt.%Mo particles decreased,but its plasticity and wear resistance were greatly improved,and the strong plastic volume increased from 17.66 GPa%to 21.50 GPa%,showing an increase of 21.74%.This study shows the feasibility of adjusting the strength-to-plastic ratio of 18Ni300 materials with metal Mo particles,and the potential of using refractory metal particles in the preparation of metal matrix composites by SLM method.关键词
激光选区融化/金属基复合材料/18Ni300不锈钢/难熔Mo颗粒Key words
laser selective melting/metal matrix composite materials/18Ni300 stainless steel/refractory Mo particles分类
矿业与冶金引用本文复制引用
张振猛,张昊,何波,吴锡辉,朱协彬,陈志浩..SLM制备Mo/18Ni300不锈钢复合材料的组织及力学性能研究[J].安徽工程大学学报,2025,40(3):28-36,9.基金项目
安徽省重点研发计划基金资助项目(1804A09020008) （1804A09020008）
安徽工程大学协同创新专项基金资助项目(2021fccyxtb1) （2021fccyxtb1）
国家级大学生创新创业训练计划基金资助项目(202110363021) （202110363021）
