Hot deformation behavior and microstructural evolution of beta C titanium alloy in beta phase field | |
Xu, Xin; Dong, Li-min; BA, Hong-bo; Zhang, Zhi-qiang; Yang, Rui | |
通讯作者 | Dong, Li-min(lmdong@imr.ac.cn) |
2016-11-01 | |
发表期刊 | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
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ISSN | 1003-6326 |
卷号 | 26期号:11页码:2874-2882 |
摘要 | The hot deformation behavior of beta C titanium alloy in beta phase field was investigated by isothermal compression tests on a Gleeble-3800 thermomechanical simulator. The constitutive equation describing the hot deformation behavior was obtained and a processing map was established at the true strain of 0.7. The microstructure was characterized by optical microscopy (OM), scanning electron microscopy (SEM) and electron back-scattered diffraction (EBSD) technique. The results show that the flow stress increases with increasing strain rates, and decreases with increasing experimental temperatures. The calculated apparent activation energy (167 kJ/mol) is close to that of self-diffusion in beta titanium. The processing map and microstructure observation exhibit a dynamic recrystallization domain in the temperature range of 900-1000 degrees C and strain rate range of 0.1-1 s(-1). An instability region exists when the strain rate is higher than 1.7 s(-1). The microstructure of beta C titanium alloy can be optimized by proper heat treatments after the deformation in the dynamic recrystallization domain. |
关键词 | titanium alloy hot deformation dynamic recrystallization processing map |
DOI | 10.1016/S1003-6326(16)64416-3 |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Metallurgy & Metallurgical Engineering |
WOS类目 | Metallurgy & Metallurgical Engineering |
WOS记录号 | WOS:000389519700010 |
出版者 | ELSEVIER SCIENCE BV |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.imr.ac.cn/handle/321006/123276 |
专题 | 中国科学院金属研究所 |
通讯作者 | Dong, Li-min |
作者单位 | Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Xin,Dong, Li-min,BA, Hong-bo,et al. Hot deformation behavior and microstructural evolution of beta C titanium alloy in beta phase field[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2016,26(11):2874-2882. |
APA | Xu, Xin,Dong, Li-min,BA, Hong-bo,Zhang, Zhi-qiang,&Yang, Rui.(2016).Hot deformation behavior and microstructural evolution of beta C titanium alloy in beta phase field.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,26(11),2874-2882. |
MLA | Xu, Xin,et al."Hot deformation behavior and microstructural evolution of beta C titanium alloy in beta phase field".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 26.11(2016):2874-2882. |
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