Preparation of low-cost Ti-4.5Al-<i>x</i>Mo-2Fe alloy based on thermite reduction and the effect of Mo content on its properties

CHEN Guangrun; MA Lan; YANG Shaoli; XIAO Jian; ZHANG Yang; ZENG Li

doi:10.7513/j.issn.1004-7638.2026.01.009

Volume 47 Issue 1

Feb. 2026

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CHEN Guangrun, MA Lan, YANG Shaoli, XIAO Jian, ZHANG Yang, ZENG Li. Preparation of low-cost Ti-4.5Al-xMo-2Fe alloy based on thermite reduction and the effect of Mo content on its properties[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(1): 80-88. doi: 10.7513/j.issn.1004-7638.2026.01.009

Citation:

CHEN Guangrun, MA Lan, YANG Shaoli, XIAO Jian, ZHANG Yang, ZENG Li. Preparation of low-cost Ti-4.5Al-xMo-2Fe alloy based on thermite reduction and the effect of Mo content on its properties[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(1): 80-88. doi: 10.7513/j.issn.1004-7638.2026.01.009

Citation:

CHEN Guangrun, MA Lan, YANG Shaoli, XIAO Jian, ZHANG Yang, ZENG Li. Preparation of low-cost Ti-4.5Al-xMo-2Fe alloy based on thermite reduction and the effect of Mo content on its properties[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(1): 80-88. doi: 10.7513/j.issn.1004-7638.2026.01.009

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Preparation of low-cost Ti-4.5Al-xMo-2Fe alloy based on thermite reduction and the effect of Mo content on its properties

doi: 10.7513/j.issn.1004-7638.2026.01.009

CHEN Guangrun^{1, 2
,},
MA Lan^{1, 2, 3
,
,},
YANG Shaoli^{1, 2, 3},
XIAO Jian^{1, 2},
ZHANG Yang^{1, 2},
ZENG Li¹

1.
Panzhihua University, Panzhihua 617000, Sichuan, China
2.
Sichuan Provincial Key Laboratory of Strategic Materials of Vanadium and Titanium, Panzhihua 617000, Sichuan, China
3.
National Key Laboratory for Vanadium and Titanium Testing, Panzhihua 617000, Sichuan, China

More Information

Received Date: 2025-11-27
Accepted Date: 2026-01-23
Rev Recd Date: 2026-01-07

Available Online: 2026-02-28

Publish Date: 2026-02-28

Abstract

Abstract

Titanium alloys are widely used in aerospace and marine engineering owing to their high specific strength, excellent corrosion resistance, and good high-temperature stability. However, the conventional production routes are energy-intensive and costly, which limits their broader application. In this study, high-titanium slag and titanium dioxide were employed as raw materials, and a Ti–Al-based intermediate alloy was first produced via aluminothermic reduction. After refining and composition adjustment, a Ti-4.5Al-xMo-2Fe near-α titanium alloy was obtained. The effects of Mo content (0, 1.5%, 3%, 4.5%) on the microstructure and properties were systematically investigated. The results show that this short-process method can successfully produce Ti-4.5Al-xMo-2Fe alloys with uniform microstructures. With increasing Mo content, the lamellar α phase becomes significantly refined and β phase precipitation is promoted, leading to increased hardness and density. After hot compression deformation, the alloy containing 3% Mo exhibits the best hot workability at 850 °C, a strain rate of 0.01 s⁻¹, and 50% deformation.
- aluminothermic reduction,
- low-cost,
- titanium alloy,
- Ti-4.5Al-xMo-2Fe

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References(18)

References

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