In situ neutron diffraction reveals the effect of Cu micro-alloying on low-temperature tensile properties of TWIP steels

Tang, Lei; Jiang, Feihong; Liu, H.B.; Kabra, Saurabh; Cai, Biao

doi:10.1016/j.msea.2022.143211

Materials Science and Engineering: A

2022

DOI: 10.1016/j.msea.2022.143211

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In situ neutron diffraction reveals the effect of Cu micro-alloying on low-temperature tensile properties of TWIP steels

Lei Tang¹,

Feihong Jiang²,

H.B. Liu³

et al.

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Cited by 8 publications

References 60 publications

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Microstructural Evolution and Hot Deformation Behavior of Cu‐Containing Twinning‐Induced Plasticity Steel

Feng,

Yuan,

Zhao

et al. 2024

steel research int.

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High manganese twinning‐induced plasticity (TWIP) steels with excellent strength and plasticity have promising applications in automotive manufacturing, but limited corrosion resistance affects their further development. Alloying with Cu is a viable solution to improve corrosion resistance. However, there remains a paucity of research concerning the effect of Cu on the hot deformation behavior of TWIP steels. So, the investigation of the recrystallization behavior and microstructural evolution in Fe‐23Mn‐6Cr‐3Al‐0.2C‐xCu (x = 0, 2.5) TWIP steels has been conducted using uniaxial hot compression test. The results reveal that Cu alloying exerts minimal influence on the high‐temperatur flow behavior, with dynamic recrystallization emerging as the predominant softening mechanism in Cu‐containing TWIP steels. However, owing to the drag effect of solute atoms, Cu alloying increases the activation energy for hot deformation and marginally reduces hot workability. Fine recrystallized grains in Cu‐containing TWIP steels can be achieved by hot deformation at lower temperatures and strain rate regions. The recrystallization behavior of Cu‐containing TWIP steels hot deformed at low temperatures and high strain rates is obviously inhibited by the increase of the activation energy and stacking fault energy, coupled with the hindering effect of Cu solute atoms clustered at grain boundaries on grain boundary migration.

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Microstructural Evolution and Hot Deformation Behavior of Cu‐Containing Twinning‐Induced Plasticity Steel

Feng,

Yuan,

Zhao

et al. 2024

steel research int.

View full text Add to dashboard Cite

show abstract

Cross-slip of extended dislocations and secondary deformation twinning in a high-Mn TWIP steel

Shen,

Xie,

et al. 2024

International Journal of Plasticity

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Low temperature tensile behavior and microstructure analysis of copper containing antibacterial stainless steel

Li,

Guo,

Huang

et al. 2024

Journal of Materials Research and Technology

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In situ neutron diffraction reveals the effect of Cu micro-alloying on low-temperature tensile properties of TWIP steels

Cited by 8 publications

References 60 publications

Microstructural Evolution and Hot Deformation Behavior of Cu‐Containing Twinning‐Induced Plasticity Steel

Microstructural Evolution and Hot Deformation Behavior of Cu‐Containing Twinning‐Induced Plasticity Steel

Cross-slip of extended dislocations and secondary deformation twinning in a high-Mn TWIP steel

Low temperature tensile behavior and microstructure analysis of copper containing antibacterial stainless steel

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