Abstract：Powder metallurgy process has significant advantages in production cost, freedom of composition design and so on, and is an effective way to manufacture low-cost and high-performance titanium alloys. In this paper, Ti-2Mn-2Sn-0.1B alloys were prepared by powder metallurgy, and the effects of annealing temperature on microstructure and mechanical properties of the alloy were studied. The results show that all of the Ti-2Mn-2Sn-0.1B alloys are composed of α, β, and TiB phases. Compared with the unannealed alloy, the β phase content in the alloy annealed at 750 ℃ increases, the flake and needle α′ phases are deposited in the alloy annealed at 850 ℃, and the α and β phases are distributed in layers in the alloy annealed at 950 ℃. All the alloys are mainly ductile fracture, and the alloy annealed at 950 ℃ has better mechanical properties, the layered α and β phase can provide good strengthening and hardening effects, and the microhardness (HV), ultimate tensile strength, and elongation are 335±16, (803±4) MPa, and (11.3±2.2)%, respectively.
方浩煜, 伍秋美, 袁铁锤. 退火温度对粉末冶金Ti-2Mn-2Sn-0.1B合金组织和力学性能的影响[J]. 粉末冶金材料科学与工程, 2024, 29(3): 246-254.
FANG Haoyu, WU Qiumei, YUAN Tiechui. Effects of annealing temperature on microstructure and mechanical properties of Ti-2Mn-2Sn-0.1B alloy by powder metallurgy. Materials Science and Engineering of Powder Metallurgy, 2024, 29(3): 246-254.
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