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)Abstract:A new cup-drawing process of BT20 titanium alloy was studied. Tensile tests were carried out at room temperature, and then cup-drawing experiments were carried out with conical female die at high temperatures. The results show that the plasticity of BT20 titanium alloy is bad, σs/σb is big, n is small, so it is not suitable for BT20 titanium alloy which draws at room temperature, even......
Part decomposed specimen of TA15 titanium alloy forging and metallographic specimen 图2 微拉伸试样尺寸 Fig. 2 Dimension of specimen for micro tensile test (Unit: mm) 图3 TA15钛合金显微组织 Fig. 3 Microstructures of TA15 titanium alloy 在Gleeble3800热/力模拟试验机上进行高温压缩试验,试验用材为与出现局部粗晶锻件坯料同批次的TA15钛合金,其原始组织为钛合金典型的等轴组织,由60%等轴α相,40%片层α相及残余β相组成,且显微组织分布均匀,如图3(a)所示.热模拟用试样尺寸为d 10 mm×15 mm.试样以10 ℃/s的速度......
中图分类号:TG146.2 文献标志码:A Effects of deformation parameters on microstructures and mechanical properties of TA15 alloy plate GUO Zhi-jun, WANG Jian, WANG Hong-wu (Baoti Group Co., Ltd., Baoji 721014, China) Abstract: Through the study on different rolling processes of TA15 titanium alloy plate, the effect of deformation temperature and deformation degree......
Modeling corrosion behavior of gas tungsten arc welded titanium alloy M. Balasubramanian1, V. Jayabalan2, V. Balasubramanian3 1. Department of Mechanical Engineering, Maamallan Institute... alloy in marine environment were explained. Besides the rapid advance of titanium metallurgy, this is also due to the successful solution of problems associated with the development of titanium alloy......
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alloys [10,11], and the heat affected zone (HAZ) is mainly made up of αp and acicular martensitic phase α′ (α′ ) in the TA15 titanium alloy welded joints [12]. To evaluate the effects..., microstructure inhomogeneity of different zones in TA15 titanium alloy welded joints was studied using the finite element analysis. The tensile test was performed to validate the numerical prediction......
Double Glow Plasma Surface Alloyed Burn-resistant Titanium Alloy ZHANG Gao-hui1,ZHANG Ping-ze1,HE Zhi-yong1,XU Zhong1 (1.Taiyuan University of Technology, Taiyuan, Shanxi, 030024, P. R. China) 摘要:Conventional titanium alloy may be ignited and burnt under high temperature, high pressure and high gas flow velocity condition. In order to avoid this problem, we have developed a new kind of burn......
process) and the low elastic modulus of titanium alloys [6], it is difficult to control the geometric precision and the microstructure of hot-spun parts of the TA15 alloy. At present, research works... spinning technology of tubular workpiece for TA15 titanium alloy [J]. Forging & Stamping Technology, 2008, 33(3): 56-59. (in Chinese) [6] YANG Ying-li, GUO Di-zi, ZHAO Yong-qing, ZHAO Heng-zhang, SU......
TA15钛合金疲劳性能的SEM分析 曹春晓1,朱知寿1,马济民1,张旺峰1,李兴无1 (1.北京航空材料研究院,北京,100095) 摘要:利用扫描电镜(SEM)疲劳加载台进行动态原位观察,研究了近α型TA15钛合金三种组织类型的疲劳裂纹扩展速率和扩展过程.结果表明:片状组织疲劳裂纹扩展速率最低,随循环周次的增加,裂纹扩展速率增加也最缓慢,裂纹扩展路径曲折;双态组织裂纹扩展速率次之;等轴组织最差.三种组织中裂纹基本沿垂直于应力的水平方向扩展. 关键词:钛合金; 原位观察; 疲劳裂纹扩展; [全文内容正在添加中] ......
consisted of primary α phase, and a small amount of residual β phase sprinkled. The forming reason of cold shut was analyzed, and the precaution of cold shut was proposed. Key words: TA15 titanium alloy... reported [11-13]. However, research reports on thick TA15 titanium alloy electron beam welding are rare [14-16]. Therefore, the research on thick TA15 titanium alloy electron beam welding has important......
