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应用准静态、动态压缩等试验研究TC16钛合金的室温变形行为;利用OM、XRD等手段分析置氢后合金的显微组织和相演变。结果表明:氢降低了合金的相变点,促进了亚稳β相的生成。静态压缩时,随着变形速度和氢含量的增加,合金的变形极限先降低后增加。氢含量为0.6%(质量分数)、变形速度为100mm/min时,合金变形能力已经达到甚至超过原始合金,流变应力较原始下降200MPa。动态变形时,材料发生明显动态软化,流变应力表现出高温变形特征。
The quasi-static and dynamic compression experiments were used to study the deformation behavior of TC16 titanium alloy at room temperature. The microstructure and phase evolution of the alloy after hydrogenation were analyzed by means of OM and XRD. The results show that hydrogen reduces the transformation point of the alloy and promotes the formation of metastable β phase. Static compression, with the deformation rate and hydrogen content increases, the deformation limit of the alloy first decreased and then increased. Hydrogen content of 0.6% (mass fraction), the deformation rate of 100mm / min, the deformation ability of the alloy has reached or even exceeded the original alloy, the flow stress decreased 200MPa than the original. Dynamic deformation, the material significantly dynamic softening, flow stress showed high temperature deformation characteristics.