| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Effects of 3 GPa High Pressure Treatment on the β1→α+β2 Phase Transition Dynamics of TC4 Titanium Alloy |
| WANG Hai-Yan1, CHEN Yan1, LIU Jian-Hua2**, WANG Wen-Kui2 |
1Provincial Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004
2State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004
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| Cite this article: |
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WANG Hai-Yan, CHEN Yan, LIU Jian-Hua et al 2013 Chin. Phys. Lett. 30 036202 |
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Abstract The temperature, duration, activation energy, and Avrami exponent of the solid phase transformation β1→α+β2 of TC4 titanium alloy treated at 3 GPa in a cooling process are calculated by means of differential scanning calorimetric curves. Then the effects of high pressure on the β1→α+β2 phase transformation dynamics of TC4 alloy in a cooling process are investigated. The results show that 3 GPa high pressure treatment can increase the activation energy of the TC4 alloy. The beginning time, end time, and duration of the β1→α+β2 phase transition of the 3 GPa high pressure treated TC4 alloy at the cooling rate of 10°C/min are increased by 2.90°C, 7.78°C and ?29.28 s respectively. It is known that 3 GPa high pressure treatment has little effect on the phase transition mechanism.
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Received: 11 December 2012
Published: 29 March 2013
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| PACS: |
62.50.-p
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(High-pressure effects in solids and liquids)
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81.40.Vw
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(Pressure treatment)
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64.60.-i
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(General studies of phase transitions)
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