Deformation Behavior and Microstructural Evolution Coordinated Regulation by Compression Deformation for Metastable Ti Alloy
2024
Deformation Behavior and Microstructural Evolution of Metastable Ti Alloy
publication
Evidence: high
Author Information
Author(s): Wang Xueli, Jia Penglai, Wang Taoqin, Li Fuguo, Wang Qiang
Primary Institution: North University of China
Hypothesis
The study investigates the relationship between compression deformation behavior and microstructure evolution in metastable β titanium alloy.
Conclusion
Low strain rate compression deformation enhances the mechanical properties of the metastable β-Ti-1023 alloy by promoting stress-induced martensite transformation.
Supporting Evidence
- Low strain rate compression leads to a significant increase in α″ martensite content.
- The average grain size decreases significantly with lower strain rates.
- Fracture mode changes from ductile to brittle as strain rate increases.
- Stress-induced martensite transformation enhances strength and toughness.
- Different deformation mechanisms are activated at varying strain rates.
Takeaway
When you squeeze a special type of titanium metal slowly, it changes shape in a way that makes it stronger and tougher.
Methodology
The Ti-10V-2Fe-3Al alloy was compressed at various strain rates, and its microstructure was analyzed using optical and electron microscopy.
Digital Object Identifier (DOI)
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