可在400～500℃使用的TC4-B钛合金棒材研制
发布时间：2018-11-19 07:08
【摘要】：通过在TC4钛合金中添加Si、O、Mo、Zr、Sn合金元素,研制出名义化学成分为Ti-6Al-4V-0.3Si-0.3Mo-0.3Zr-0.3Sn-0.15O的TC4-B钛合金。并采用两种镦拔组合变形工艺,制备尺寸为?75 mm圆棒和51 mm×85.6 mm扁方棒。结果表明:经"三三一"工艺锻制的TC4-B钛合金棒材显微组织更为均匀;力学性能明显优于经常规工艺锻制的棒材,其室温拉伸强度可达1 000 MPa以上,500℃时拉伸强度可达636 MPa,伸长率为18%,断面收缩率为61%,可在400~500℃高温条件下使用。
[Abstract]:TC4-B titanium alloy with nominal chemical composition of Ti-6Al-4V-0.3Si-0.3Mo-0.3Zr-0.3Sn-0.15O was prepared by adding elements of Si,O,Mo,Zr,Sn alloy to TC4 titanium alloy. Two kinds of upsetting and drawing combined deformation processes were used to prepare? 75 mm round rod and 51 mm 脳 85.6 mm flat square rod. The results show that the microstructure of TC4-B titanium alloy bar forged by "three trinity" process is more uniform. The mechanical properties are obviously superior to those of the bars forged by conventional technology. The tensile strength at room temperature can reach more than 1 000 MPa, the tensile strength at 500 鈩，
本文编号：2341493
[Abstract]:TC4-B titanium alloy with nominal chemical composition of Ti-6Al-4V-0.3Si-0.3Mo-0.3Zr-0.3Sn-0.15O was prepared by adding elements of Si,O,Mo,Zr,Sn alloy to TC4 titanium alloy. Two kinds of upsetting and drawing combined deformation processes were used to prepare? 75 mm round rod and 51 mm 脳 85.6 mm flat square rod. The results show that the microstructure of TC4-B titanium alloy bar forged by "three trinity" process is more uniform. The mechanical properties are obviously superior to those of the bars forged by conventional technology. The tensile strength at room temperature can reach more than 1 000 MPa, the tensile strength at 500 鈩，
本文编号：2341493
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