Abstract
The high-throughput diffusion-multiple technique and thermodynamics databases were used to design new high-strength Ti alloys. The composition–microstructure–property relationships of the Ti64–xMo alloys were obtained. The phase fraction and composition of the α and β phases of the Ti64–xMo alloys were calculated using the Thermo-Calc software. After aging at 600°C, the Ti64–6Mo alloy precipitated ultrafine α phases. This phenomenon was explained on the basis of the pseudo-spinodal mechanism by calculating the Gibbs energy curves of the α and β phases of the Ti64–xMo alloys at 600°C. Bulk forged Ti64–6Mo alloy exhibited high strength and moderate plasticity after α/β-phase-field solution treatment plus aging. The tensile properties of the alloy were determined by the size and morphology of the primary and secondary α phases and by the β grain size.
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14 January 2020
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Acknowledgements
The authors acknowledge financial support from the National Key Technologies R&D Program of China (Grant No. 2016YFB0701301 and 2018YFB0704100), National Natural Science Foundation of China (Grant No. 51671218 and 51501229), National Key Basic Research Program of China (973 Program) (Grant No. 2014CB644000) and State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China.
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Wu, D., Wang, Wl., Zhang, Lg. et al. New high-strength Ti–Al–V–Mo alloy: from high-throughput composition design to mechanical properties. Int J Miner Metall Mater 26, 1151–1165 (2019). https://doi.org/10.1007/s12613-019-1854-1
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DOI: https://doi.org/10.1007/s12613-019-1854-1