Transactions of Materials and Heat Treatment

Title：Influence of different heat treatment systems on microstructure and properties of Gr.38 titanium alloy plate

Authors： Wang Xingyun Yang Zheng Zhao Xiaolong

Unit： Xinjiang XRun New Material Technology Co. Ltd.

KeyWords： Gr.38 titanium alloy low temperature general annealing solution and aging aging temperature bulletproof performance

ClassificationCode：TG335.5

year,vol(issue):pagenumber：2024,49(3):202-206

Abstract：

The influences of different heat treatment systems on the microstructure and mechanical properties of Gr.38 titanium alloy plates were studied. The results show that the low temperature general annealing treatment has little effect on the microstructure and mechanical properties of Gr.38 titanium alloy plate. The tensile strength and hardness of Gr.38 titanium alloy can be greatly improved by solution and aging treatment in two-phase zone, but its plasticity and impact toughness decrease significantly. After solution treatment, finer secondary α phase and less primary α phase are obtained by water cooling than air cooling, and the tensile strength and hardness of Gr.38 titanium alloy are higher. The lamellar thickness of secondary α phase can be adjusted by controlling the aging temperature. The higher the aging temperature is, the lower the tensile strength and hardness of alloy are, but the higher the plasticity and impact toughness are. Gr.38 titanium alloy plate has better bulletproof performance, and the best bulletproof performance is obtained by general annealing process.

Funds：

自治区重点研发任务专项（2022B01029）

作者简介：王幸运（1985-），男，硕士，高级工程师，E-mail：13309282316@163.com

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