TC11钛合金棒材锻造工艺的研究

Study on Forging Process of TC11 Titanium Alloy Bar

研究了三种不同锻造工艺对TC11钛合金棒材的组织及力学性能的影响,使用金相显微镜观察了棒材的显微组织,使用拉伸试验机测试了拉伸性能。结果表明,通过β相区和两相区相结合的镦拔变形方式并制定合理的锻造温度可以得到球化程度较高、等轴、细小、初生α相含量适当的棒材组织,这种组织可实现棒材塑性和强度的良好匹配。

The effects of three different forging processes on the microstructure and mechanical properties of TCll titanium alloy bars were studied. The microstructure was observed by optical microscope. The tensile properties were tested by tensile testing machine. The results show that through the combination of upsetting-swaging deformation in 13 phase region and two-phase region, and constituting a reasonable forging temperature can get the bar mierostructure with higher spheroidization degree, equiaxed, fine and appropriate primary a phase contents. The microstructure can achieve the good match of strength and plasticity of the bar.