New high-strength Ti-Al-V-Mo alloy: from high-throughput composition design to mechanical properties

Di Wu; Wan-lin Wang; Li-gang Zhang; Zhen-yu Wang; Ke-chao Zhou; Li-bin Liu

doi:10.1007/s12613-019-1854-1

Volume 26 Issue 9

Sep. 2019

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2019 > 26(9): 1151-1165

Di Wu, Wan-lin Wang, Li-gang Zhang, Zhen-yu Wang, Ke-chao Zhou, and Li-bin Liu, New high-strength Ti-Al-V-Mo alloy: from high-throughput composition design to mechanical properties, Int. J. Miner. Metall. Mater., 26(2019), No. 9, pp. 1151-1165. https://doi.org/10.1007/s12613-019-1854-1

Cite this article as:

Di Wu, Wan-lin Wang, Li-gang Zhang, Zhen-yu Wang, Ke-chao Zhou, and Li-bin Liu, New high-strength Ti-Al-V-Mo alloy: from high-throughput composition design to mechanical properties, Int. J. Miner. Metall. Mater., 26(2019), No. 9, pp. 1151-1165. https://doi.org/10.1007/s12613-019-1854-1

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Research Article

New high-strength Ti-Al-V-Mo alloy: from high-throughput composition design to mechanical properties

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Corresponding authors:
Ke-chao Zhou E-mail: zhoukechao@csu.edu.cn

Li-bin Liu E-mail: lbliu@csu.edu.cn
Received: 13 January 2019; Revised: 22 February 2019; Accepted: 27 February 2019

Abstract

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℃, 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℃. 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.
- high-strength titanium alloy;
- Ti-6Al-4V-xMo;
- diffusion multiple;
- Thermo-Calc;
- microstructure and mechanical properties

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