性能的影响
(1. 西部超导材料科技有限公司，西安 710018; 2. 西北工业大学 材料科学与工程学院，西安 710072；
3. 西北有色金属研究院 钛合金研究所，西安 710016)
摘 要: 研究了Ti-10V-2Fe-3Al合金在两相区、近β区和β区3种锻造工艺下的微观组织、力学性能和断口形貌。结果表明：两相区和近β区锻造获得等轴组织，强度高，塑性好，但KIC较低；β锻造获得片状组织，强度和塑性较低，KIC较高；比较3种锻造工艺，近β锻造可以获得各项力学性能的最佳匹配。
关键字: Ti-10V-2Fe-3Al合金；显微组织；拉伸性能；变形量
properties of Ti-10V-2Fe-3Al alloy
（1. Western Superconducting Technologies Co., Ltd., Xi’an 710018, China;
2. School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China;
3. Titanium Alloy Research Center, Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China）
Abstract:The effects of (α+β) forging, near β forging and β forging on the microstructure, mechanical properties and fracture morphology were studied. The results show that the microstructures of Ti-10V-2Fe-3Al alloy undergone (α+β) forging, near β forging and β forging are equiaxed and lamellar, respectively. Compared to the lamellar structure, equiaxed structure exhibits higher strength and plasticity, but the lower toughness. It is shown that the excellent combination of strength, ductility and toughness can be obtained in Ti-10V-2Fe-3Al alloy by large deformation in near β forging.
Key words: Ti-10V-2Fe-3Al alloy; microstructure; tensile property; deformation
