退火处理对激光选区激光熔化成形Ti-6Al-4V合金的显微组织和力学性能影响
Microstructural evolution and mechanical properties of selective laser melted Ti-6Al-4V induced by annealing treatment作者机构:Additive Manufacturing InstituteCollege of Mechatronics and Control EngineeringShenzhen UniversityShenzhen 518060China Erich Schmid Institute of Materials ScienceAustrian Academy of SciencesJahnstraße 12A-8700 LeobenAustria Departmentof Materials ScienceChair of Materials PhysicsMontanuniversität LeobenJahnstraße 12A-8700 LeobenAustria Institute for Complex MaterialsLeibniz IFW DresdenHelmholtzstraße 20D-01069 DresdenGermany Department of Mechanical and Industrial EngineeringTallinn University of TechnologyEhitajete tee 519086 TallinnEstonia CBCMTSchool of Mechanical EngineeringVellore Institute of TechnologyVellore-632014Tamil NaduIndia
出 版 物:《Journal of Central South University》 (中南大学学报(英文版))
年 卷 期:2021年第28卷第4期
页 面:1068-1077页
核心收录:
学科分类:0810[工学-信息与通信工程] 08[工学] 0806[工学-冶金工程] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学] 0802[工学-机械工程] 0703[理学-化学] 080201[工学-机械制造及其自动化] 0812[工学-计算机科学与技术(可授工学、理学学位)]
基 金:Project(2020A1515110869)supported by Guangdong Basic and Applied Basic Research Foundation,China Project(GJHZ20190822095418365)supported by Shenzhen International Cooperation Research,China Project(51775351)supported by the National Natural Science Foundation of China Project(2019011)supported by the NTUT-SZU Joint Research Program,China Project(2019040)supported by the Natural Science Foundation of SZU,China Project(ASTRA6-6)supported by the European Regional Development Fund,European Union。
主 题:激光选区熔化技术 Ti-6Al-V合金 退火处理 显微组织 力学性能
摘 要:利用激光选区熔化技术(SLM)制备Ti-6Al-4V合金,并研究退火处理对该合金的相转变、元素扩散、显微组织结构以及力学性能的影响。结果表明,随着退火温度的升高,钒元素富集在α′相并且α′相在973 K转变为α+β双相组织。在973 K,α′相所形成的马氏体组织转变为细小等轴显微组织,且该等轴组织随温度的升高发生显著粗化。经过973 K退火的SLM Ti-6Al-4V合金表现出良好且均衡的强度和延展性,分别为(1305±25)MPa,(37±3)%。