Study on thermal deformation behavior and microstructure evolution of Ti-55511 alloy

Mu Pengwei; Lü Shufeng; Yang Peijie; Kang Xudong; Du Zhaoxin

doi:10.7513/j.issn.1004-7638.2023.05.010

Volume 44 Issue 5

Oct. 2023

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Mu Pengwei, Lü Shufeng, Yang Peijie, Kang Xudong, Du Zhaoxin. Study on thermal deformation behavior and microstructure evolution of Ti-55511 alloy[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(5): 61-67. doi: 10.7513/j.issn.1004-7638.2023.05.010

Citation:

Mu Pengwei, Lü Shufeng, Yang Peijie, Kang Xudong, Du Zhaoxin. Study on thermal deformation behavior and microstructure evolution of Ti-55511 alloy[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(5): 61-67. doi: 10.7513/j.issn.1004-7638.2023.05.010

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Study on thermal deformation behavior and microstructure evolution of Ti-55511 alloy

doi: 10.7513/j.issn.1004-7638.2023.05.010

1.
College of Science, Inner Mongolia University of Technology, Hohhot 010051, Inner Mongolia, China
2.
China North Rare Earth (Group) Hi-tech Co., Ltd., Baotou 014060, Inner Mongolia, China
3.
College of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, Inner Mongolia, China

Received Date: 2023-01-01
Available Online: 2023-11-04
Publish Date: 2023-10-31

Abstract

Abstract

The thermal deformation behavior of Ti-55511 alloy was studied by isothermal compression simulation method at the temperature of 700～950 ℃ and strain rate of 0.001～10 s⁻¹. The results show that the softening mechanism of the alloy is very sensitive to the change of hot working parameters. Under the matching of high strain rate and low deformation temperature, the softening behavior of the alloy caused by dynamic recovery/recrystallization plays a dominant role in the competition with deformation hardening, which is manifested as the reduction of flow stress. In addition, recrystallization softening and deformation hardening reach an equilibrium state under the matching of high deformation temperature and low strain rate. By contrast, the power dissipation factor (η)is higher under the condition of low strain rate, the microstructure distribution is more uniform, and the thermal processing ability is good.
- Ti-55511 alloy,
- thermal compression simulation,
- microstructure,
- recovery recrystallization,
- hot working property

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References(14)

References

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