Study on hot deformation and heat treatment of a novel series of high strength and wear resistance β titanium Ti-Al-Mo-V-Cr alloy

Yue Ke; Sun Yingjun; Peng Li; Lin Chongzhi

doi:10.7513/j.issn.1004-7638.2023.06.009

Volume 44 Issue 6

Dec. 2023

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Yue Ke, Sun Yingjun, Peng Li, Lin Chongzhi. Study on hot deformation and heat treatment of a novel series of high strength and wear resistance β titanium Ti-Al-Mo-V-Cr alloy[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(6): 64-69. doi: 10.7513/j.issn.1004-7638.2023.06.009

Citation:

Yue Ke, Sun Yingjun, Peng Li, Lin Chongzhi. Study on hot deformation and heat treatment of a novel series of high strength and wear resistance β titanium Ti-Al-Mo-V-Cr alloy[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(6): 64-69. doi: 10.7513/j.issn.1004-7638.2023.06.009

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Study on hot deformation and heat treatment of a novel series of high strength and wear resistance β titanium Ti-Al-Mo-V-Cr alloy

doi: 10.7513/j.issn.1004-7638.2023.06.009

Chengdu Advanced Metal Materials Industrial Technolgy Research Institute Co., Ltd., Chengdu 610300, Sichuan, China

Received Date: 2023-06-15
Available Online: 2024-01-11
Publish Date: 2023-12-30

Abstract

Abstract

Taking high strength and wear resistance β titanium Ti-Al-Mo-V-Cr alloy as the research object, the hot deformation behaviors with varying hot working conditions were studied, and the influence of heat treatment on the microstructure and mechanical properties of cold rolled sheet was analyzed. The results are summarized as follows: In the hot compression tests, the flow stress of this alloy decreases with the decreasing strain rate and increasing deformation temperature; the amount of recrystallized grains increases significantly with decreasing strain rate, the size of recrystallized grains diminishes obviously with decreasing deformation temperature. In the heat treatment tests, the microstructure and mechanical properties of cold rolled sheet can be effectively optimized with proper heat treatment process, tensile properties and Rockwell hardness are improved simultaneously by aging at lower temperature or annealing at higher temperature, with the tensile fracture strength of reaching 1686 MPa and 1569 MPa, respectively, while keeping the hardness (HRC) over 50 for either heat treatment process.
- high strength and wear resistance β titanium alloy,
- hot deformation,
- heat treatment,
- microstructure evolution,
- recrystallization

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References(11)

References

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