Development and Validation of Processing Maps for Ti-6Al-4V Alloy Using Various Flow Instability Criteria |
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| Authors: | Jun Cai Xiaolu Zhang Kuashe Wang Qingjuan Wang Wen Wang |
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| Affiliation: | 1.School of Metallurgical Engineering,Xi’an University of Architecture and Technology,Xi’an,China;2.PetroChina Company Limited Shaanxi Marketing Company,Xi’an,China |
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| Abstract: | Based on the flow stress data obtained from the isothermal hot compression tests, the processing maps of Ti-6Al-4V alloy were developed based on the instability criteria of Prasad, Malas, and Murty. The validation of the processing maps was achieved by investigating the microstructures of compressed Ti-6Al-4V alloy specimens. The results showed that the power dissipation maps obtained using the criteria of Prasad and Murty exhibited similar distribution, whereas the instability domains obtained by various instability criteria had great differences. Microstructure analysis showed that the instability domains determined by Murty’s criterion were more accurate than those determined using other criteria. |
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