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Development and Validation of Processing Maps for Ti-6Al-4V Alloy Using Various Flow Instability Criteria

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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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Acknowledgments

The authors gratefully acknowledge the financial support received from Innovation Foundation of Western Materials (XBCL-3-19), Planned Scientific Research Project of Education Department of Shaanxi Provincial Government (15JS056), Industrial Science and Technique Key Project of Shaanxi Province (2016GY-207), Province Natural Science Foundation of Shaanxi (2014JM6230), and Service Place Special Plan Project Funded by the Shaanxi Province Education Department (14JF013).

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Authors and Affiliations

  1. School of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China

    Jun Cai, Kuashe Wang, Qingjuan Wang & Wen Wang

  2. PetroChina Company Limited Shaanxi Marketing Company, Xi’an, 710004, China

    Xiaolu Zhang

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  1. Jun Cai
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  2. Xiaolu Zhang
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  3. Kuashe Wang
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  4. Qingjuan Wang
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  5. Wen Wang
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Correspondence to Jun Cai.

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Cai, J., Zhang, X., Wang, K. et al. Development and Validation of Processing Maps for Ti-6Al-4V Alloy Using Various Flow Instability Criteria. J. of Materi Eng and Perform 25, 4750–4756 (2016). https://doi.org/10.1007/s11665-016-2296-9

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  • DOI: https://doi.org/10.1007/s11665-016-2296-9

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