航空材料学报2009，Vol.29Issue(6)：18-22,5.DOI:10.3969/j.issn.1005-5053.2009.6.004
激光熔化沉积Ti-6Al-2Zr-Mo-V钛合金组织特征研究
Microstructure Features of Laser Deposited Ti-6Al-2Zr-Mo-V Alloy
摘要
Abstract
Laser melting deposition (LMD) process was used to fabricate Ti-6Al-2Zr-Mo-V alloy directly. The metal powders were continuously melted and rapidly solidified layer upon layer directly into the near-net shape structure. The elements were fully melted and uniformly mixed in the molten pool that homogenized dense microstructure was obtained. Laser deposited Ti-6-Al-2Zr-Mo-V is characterized by a fine α/β lamellar microstructure with various random orientations, which should be related to the rapid solidification and phase transformation during the process. The influence of deposition layer on the fatigue strength is discussed.关键词
激光熔化沉积/钛合金/快速凝固/显微组织Key words
laser melting deposition/ titanium alloy/ rapid solidification/ microstructure分类
金属材料引用本文复制引用
贺瑞军,王华明..激光熔化沉积Ti-6Al-2Zr-Mo-V钛合金组织特征研究[J].航空材料学报,2009,29(6):18-22,5.基金项目
国家自然科学基金(50625413) （50625413）
973计划(2006CB605206-2) （2006CB605206-2）
