Enhanced yield strength by fine grain strengthening and TRIP/TWIP effect of metastable β-type Ti-4V-2Mo-2Fe alloy with high ductility

Lu, Haoran; Shi, Heyang; Zhang, Han; Ma, Wei; Guo, Yuxing; Liang, Shunxing; Zhang, Junsong; Zhang, Xinyu; Zhang, Shuzhi; Liu, Riping

doi:10.1016/j.matchar.2023.113591

Cited by 8 publications

(1 citation statement)

References 44 publications

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“…It can be seen that the stress-strain curves for big samples are smoother compared to those for the small sample, which is similar to the results of Morkina et al for Zr-Al alloys [54]. Huang et al [55] and Lu et al [56] also studied the effect of grain size on twins in the research process of a Ti−12Mo alloy and a Ti-4V-2Mo-2Fe alloy. The results show that the reduction in grain size obviously inhibits the formation of twins, consistent with the results of this study.…”

Section: The Influence Of Computational Cell Size On the Tensile Mech...supporting

confidence: 83%

Studying Plastic Deformation Mechanism in β-Ti-Nb Alloys by Molecular Dynamic Simulations

Wang,

Huang,

et al. 2024

Metals

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Using molecular dynamics (MD) simulations, the transition of the plastic deformation mechanism of Ti-Nb alloys during the tensile process was studied, and the effects of temperature, Nb composition, and strain rate on the deformation mechanism were also investigated. The results show that the deformation process of Ti-Nb alloys involves defect formation, followed by twinning and ω-phase transition, and ultimately, dislocation slip occurs. The <111>{112} slip makes the ω-phase easily overcome the transition energy barrier, inducing the phase transition in the twinning process. Increasing temperature will enhance the plasticity and reduce the strength of the material, while increasing Nb composition will have the opposite effect on the deformation. The simulations show a competition between twinning and dislocation slip mechanisms. With the increase in Nb content, the plastic deformation mechanism of the alloy will change from twinning to dislocation slip. In addition, the plastic strain range increases with the increase in the deformation rate in Ti-Nb alloys. At a higher strain rate, the alloy’s plastic strain range is affected by various deformation mechanisms, which significantly influence the plasticity of the material. The findings of this study provide further insights into the design of Ti-Nb-based alloys.

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Section: The Influence Of Computational Cell Size On the Tensile Mech...supporting

confidence: 83%

Studying Plastic Deformation Mechanism in β-Ti-Nb Alloys by Molecular Dynamic Simulations

Wang,

Huang,

et al. 2024

Metals

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Recent Advances in Near‐β Titanium Alloys: Microstructure Control, Deformation Mechanisms, and Oxidation Behavior

Zhuo,

Zhan,

Xie

et al. 2024

Adv Eng Mater

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Near‐β titanium alloys are used as promising structural materials for aerospace, biomedical, and other advanced applications due to their excellent combination of high specific strength and superior corrosion resistance. Precise control of the microstructure and mechanical properties through thermomechanical processing and heat treatment is paramount for exploiting the full potential of these alloys. This review article provides a comprehensive and critical assessment of the state‐of‐the‐art research on the microstructure evolution, deformation mechanisms, and oxidation behavior of near‐β titanium alloys. Furthermore, the challenges and emerging opportunities in the development of near‐β titanium alloys have also been identified, ranging from alloy design and processing optimization to multiscale characterization and integrated computational materials engineering. This review article provides a timely and comprehensive roadmap for the research and development of near‐β titanium alloys, paving the way for unlocking their full potential in critical industries.

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A review on deformation mechanisms of metastable β titanium alloys

Cao,

2024

J Mater Sci

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Enhanced yield strength by fine grain strengthening and TRIP/TWIP effect of metastable β-type Ti-4V-2Mo-2Fe alloy with high ductility

Cited by 8 publications

References 44 publications

Studying Plastic Deformation Mechanism in β-Ti-Nb Alloys by Molecular Dynamic Simulations

Studying Plastic Deformation Mechanism in β-Ti-Nb Alloys by Molecular Dynamic Simulations

Recent Advances in Near‐β Titanium Alloys: Microstructure Control, Deformation Mechanisms, and Oxidation Behavior

A review on deformation mechanisms of metastable β titanium alloys

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