热氢处理对TA15钛合金组织及性能的影响

TA15 titanium alloy specimen with different hydrogen contents was obtained by using a vacuum gas-phase thermal hydrogen treatment furnace, and the cutting force and microstructure of the specimen was tested and observed by means of a machine tool with sensors, and scanning electron microscope, Charpy impact tester, respectively. At the same time, the structural evolution and mechanical properties laws of TA15 titanium alloy specimen with different hydrogen content during thermal hydrogen treatment were studied. The results show that the TA15 titanium alloy specimen have different degrees of microstructure refinement after thermal hydrogen treatment; the main cutting force of the TA15 titanium alloy specimen after thermal hydrogen treatment increases with the increase of hydrogen content, and when the hydrogen content is 0.51%, the main cutting force decreases with the increase of cutting speed. The main cutting force of TA15 titanium alloy specimen with other hydrogen content first increases and then decreases with the increase of cutting speed; the impact absorbed energy of TA15 titanium alloy specimen after thermal hydrogen treatment decreases as the hydrogen content increases.