固溶处理对Ti-4.5Al-2.5V-1.5Fe-0.25O热轧板材组织及力学性能的影响
发布时间：2018-08-24 11:27
【摘要】：研究了不同固溶温度与冷却方式对Ti-4.5Al-2.5V-1.5Fe-0.25O热轧板材显微组织及力学性能的影响。结果表明:热轧合金板材组织主要由α相和β相组成,随着固溶温度从910℃升高到1000℃,板材中α相含量减少而β相含量逐渐增多,初生等轴α相向针状β相转变进而向全片层状β相转变;空冷冷却速度较慢,高温组织有很大一部分发生分解,而水冷冷却抑制高温析出相析出及分解,形成片层状β转变组织;随着固溶温度的升高,合金板材抗拉强度先增加后减小,伸长率降低;940℃固溶后水冷处理的合金板材力学性能最优:抗拉强度1264 MPa,伸长率11.4%。
[Abstract]:The effects of different solution temperature and cooling methods on the microstructure and mechanical properties of Ti-4.5Al-2.5V-1.5Fe-0.25O hot rolled sheet were studied. The results show that the microstructure of hot rolled alloy sheet is mainly composed of 伪 phase and 尾 phase. With the increase of solution temperature from 910 鈩，
本文编号：2200679
[Abstract]:The effects of different solution temperature and cooling methods on the microstructure and mechanical properties of Ti-4.5Al-2.5V-1.5Fe-0.25O hot rolled sheet were studied. The results show that the microstructure of hot rolled alloy sheet is mainly composed of 伪 phase and 尾 phase. With the increase of solution temperature from 910 鈩，
本文编号：2200679
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