Hot Deformation Behaviour and Processing Maps of Ti-B25 Titanium Alloy AITranslate
Abstract AITranslate
Thermal compression experiments were conducted on Ti-B25 alloy with Gleeble 3800 thermodynamic simulator.The true stress-true strain data were obtained under the conditions of 800-1 000 ℃ and strain rate of 0.01-10 s^-1.By calculating the strain rate sensitive index m,energy dissipation rate η and instability coefficient ζ,the processing maps under different true strain conditions were drawn,and the stable deformation parameters and instability regions corresponding to the true strain were identified.The safe deformation parameters of Ti-B25 titanium alloy in the experimental range were obtained as follows:temperature 900-1 000 ℃ ,strain rate 0.01-0.2 s^-1.In addition,the microstructural analysis shows that the instability modes of Ti-B25 titanium alloy at low temperature and high strain rate are grain breakage and obvious rheological instability.The a phase spheroidization occurs in its two-phase structure at low temperature and low strain rate.While the instability modes at medium temperature and high strain rate are local plastic deformation in the middle large deformation zone,and the dynamic recrystallization occurs mainly at the medium temperature and low strain rates.
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Basic Information:
DOI：
Chinese Library Classification Number:TG146.23[金属学及工艺—金属材料]
Citation Information:
Thermal compression experiments were conducted on Ti-B25 alloy with Gleeble 3800 thermodynamic simulator.The true stress-true strain data were obtained under the conditions of 800-1 000 ℃ and strain rate of 0.01-10 s^-1.By calculating the strain rate sensitive index m,energy dissipation rate η and instability coefficient ζ,the processing maps under different true strain conditions were drawn,and the stable deformation parameters and instability regions corresponding to the true strain were identified.The safe deformation parameters of Ti-B25 titanium alloy in the experimental range were obtained as follows:temperature 900-1 000 ℃ ,strain rate 0.01-0.2 s^-1.In addition,the microstructural analysis shows that the instability modes of Ti-B25 titanium alloy at low temperature and high strain rate are grain breakage and obvious rheological instability.The a phase spheroidization occurs in its two-phase structure at low temperature and low strain rate.While the instability modes at medium temperature and high strain rate are local plastic deformation in the middle large deformation zone,and the dynamic recrystallization occurs mainly at the medium temperature and low strain rates.
quote
| GB/T 7714-2015 | [1] TAN Wei-li, LIU Wei, QI Yun-lian, et al. Hot Deformation Behaviour and Processing Maps of Ti-B25 Titanium Alloy[J]. Rare Metals and Cemented Carbides, 2019(1): 36-42. |
| MLA | [1] TAN Wei-li, et al., "Hot Deformation Behaviour and Processing Maps of Ti-B25 Titanium Alloy." Rare Metals and Cemented Carbides, no. 1, 2019, pp. 36-42. |
| APA | [1] TAN Wei-li, LIU Wei, QI Yun-lian, MAO Xiao-nan, & WANG Yi. (2019). Hot Deformation Behaviour and Processing Maps of Ti-B25 Titanium Alloy. Rare Metals and Cemented Carbides(1), 36-42. |
| IEEE | [1] TAN Wei-li, LIU Wei, QI Yun-lian, MAO Xiao-nan, and WANG Yi, "Hot Deformation Behaviour and Processing Maps of Ti-B25 Titanium Alloy," Rare Metals and Cemented Carbides, no. 1, pp. 36-42, 2019. keywords: {Ti-B25 alloy;thermal processing parameters;processing map;mierostructure} |