对TA2纯钛进行了轧制和退火处理,然后进行了杯突试验,获得了不同的杯突值。采用金相显微镜、扫描电镜对组织进行了观察。通过维氏硬度测试仪对硬度进行了测量。结果表明,TA2钛板退火处理后发生了回复再结晶,获得了较为均匀的多边形等轴状α晶粒组织,造成了TA2杯突值增大,维氏硬度降低。经过退火处理后的TA2试样杯突值达9.60 mm的最高值,成形性能显著提高。 TA2 pure titanium was rolled and annealed, and then cupped test to obtain a different cup sudden value. The microstructure was observed by optical microscope and scanning electron microscopy. The hardness was measured by a Vickers hardness tester. The results show that the recrystallization of TA2 titanium plate occurs after annealing treatment, and a more uniform polygonal equiaxed α grain structure is obtained, resulting in the increase of TA2 cup protrusion and the decrease of Vickers hardness. After annealing, the TA2 sample cup protrusion reached the highest value of 9.60 mm, the formability was significantly improved.