Effect of yttrium on the microstructure and properties of IMI829 and Ti 14Al 21Nb alloys were studied by using optical microscope, SEM and mechanical property testing device.

• 采用光学显微镜、扫描电镜和力学性能测试设备，研究了在IMI829和Ti?14Al?21Nb合金中添加Y，对合金显微组织和性能的影响。