(宝鸡钛业股份有限公司, 宝鸡 721014)
摘 要: 研究了挤压加热温度、挤压比、退火制度等工艺对挤压管材组织性能的影响。结果表明：随着挤压比的增大，管材的强度和塑性都有所提高；两相区挤压管材的室温性能与组织的对应关系较好；退火温度和时间对组织形貌和性能基本无影响。当挤压温度为950 ℃，挤压比为10.2，退火温度为800~850 ℃，1~2 h，AC时，管材可得到较好的组织性能匹配。研制出的产品满足相关技术标准的质量要求。
关键字: TA15钛合金；微观组织；力学性能；退火
（Baoji Titanium Industry Co., Ltd., Baoji 721014, China）
Abstract:The effects of deformation parameters such as hoting temperature, extrusion ratio, annealing process and test temperature on the microstructure and properties of TA15 alloy extruded tube were discussed. The results show that, strength and plasticity of tube raise with the increase of extrusion ratio; there is good relationship between microstructure and mechanical properties of TA15 titanium alloy tube in two-phase area; the effect of annealing temperature and annealing time on microstructure and properties is not obvious. Under condition of the extrusion temperature of 950 ℃, extrusion ratio of 10.2, and 800−850 ℃, 1−2 h, AC annealing, T15 alloy tube will achieve excellent performance. All of request of product can meet demands of specification.
Key words: TA15 titanium alloy; microstructure; mechanical property; annealing
