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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
Corresponding AuthorDong, Li-min(lmdong@imr.ac.cn)
2016-11-01
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume26Issue:11Pages:2874-2882
AbstractThe 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.
Keywordtitanium alloy hot deformation dynamic recrystallization processing map
DOI10.1016/S1003-6326(16)64416-3
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000389519700010
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/123276
Collection中国科学院金属研究所
Corresponding AuthorDong, Li-min
AffiliationChinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
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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