制备了外科植入物Ti-6Al-7Nb钛合金棒材,研究了不同退火温度和变形量对Ti-6Al-7Nb钛合金组织和力学性能的影响。结果表明,材料在700~880℃退火能得到良好综合性能;当变形量达到50%及以上时,棒材组织发生明显破碎和细化,随着变形量增加,细化程度变大,棒材的强度明显提高,而塑性变化不大。 The Ti-6Al-7Nb titanium alloy bar was prepared and the effect of annealing temperature and deformation on the microstructure and mechanical properties of Ti-6Al-7Nb titanium alloy was studied. The results show that the material can be annealed at 700-880 ℃ and get a good comprehensive performance. When the deformation reaches 50% and above, the structure of the bar is obviously broken and refined. As the amount of deformation increases, the degree of refinement becomes larger. The strength is obviously improved, while the plasticity is not changed much.