选区激光熔化法制备的M2052锰铜合金的组织与性能  

Microstructure and properties of M2052 Mn-Cu alloy prepared by selective laser melting method

作　　者：马聪慧 王长军[2] 沈韬[1] 胡家齐[2] 梁剑雄[2] Ma Conghui;Wang Changjun;Shen Tao;Hu Jiaqi;Liang Jianxiong(School of Materials Science and Engineering,Kunming University of Science and Technology,Kunming Yunnan 650093,China;Special Steel Research Institute,Central Iron and Steel Research Institute,Beijing 100081,China)

机构地区：[1]昆明理工大学材料科学与工程学院,云南昆明650093 [2]钢铁研究总院特殊钢研究所,北京100081

出　　处：《金属热处理》2020年第8期97-104,共8页Heat Treatment of Metals

摘　　要：使用真空感应熔炼气雾化法(VIGA)制备M2052锰铜粉末,通过选区激光熔化技术(SLM)直接成形合金试样,经固溶时效处理和热等静压加工,从热力学计算、显微组织分析及力学性能测试等方面对SLM法制备的锰铜合金进行了研究。研究发现SLM法成形的锰铜合金的抗拉和屈服强度较高,但冲击吸收能量低,塑性差。经过热等静压处理后,合金的综合力学性能明显提高。M2052 manganese-copper powder was prepared by vacuum induction melting gas atomization( VIGA),and the alloy specimen was directly formed by the selective laser melting( SLM) method.Processed by solid solution and aging treatments and hot isostatic pressing,the manganese-copper alloy prepared by SLM method was studied by thermodynamic calculation,microstructure analysis and mechanical property tests.The results show that the tensile strength and yield strength of the manganese-copper alloy prepared by the SLM method are higher,but the impact absorbed energy is low and the plasticity is poor.After hot isostatic pressing,the comprehensive mechanical properties of the alloy are significantly improved.

关 键 词：选区激光熔化 热等静压 M2052合金 显微组织 

分 类 号：P618.32[天文地球—矿床学]