Wang, S.; Yan, H.; Zhang, D.; Hu, J.; Li, Y. The Microstructures and Deformation Mechanism of Hetero-Structured Pure Ti under High Strain Rates. Materials2023, 16, 7059.
Wang, S.; Yan, H.; Zhang, D.; Hu, J.; Li, Y. The Microstructures and Deformation Mechanism of Hetero-Structured Pure Ti under High Strain Rates. Materials 2023, 16, 7059.
Wang, S.; Yan, H.; Zhang, D.; Hu, J.; Li, Y. The Microstructures and Deformation Mechanism of Hetero-Structured Pure Ti under High Strain Rates. Materials2023, 16, 7059.
Wang, S.; Yan, H.; Zhang, D.; Hu, J.; Li, Y. The Microstructures and Deformation Mechanism of Hetero-Structured Pure Ti under High Strain Rates. Materials 2023, 16, 7059.
Abstract
This study investigates the microstructures and deformation mechanism of hetero-structured pure titanium under different high strain rates (500 s-1，1000 s-1，2000 s-1). The influence of strain rate on the deformation mechanism is examined. As the strain rate increases, the dominance of dislocation slip decreases while deformation twinning becomes more prominent. Notably, at a strain rate of 2000s-1, nanoscale twin lamellae are activated within grain with a size of 500nm, which is a rarely observed phenomenon in pure Ti. Additionally, martensitic phase transformation is also identified. These findings can greatly enhance our understanding of the mechanical responses of Ti and broaden the potential applications of Ti in dynamic deformation scenarios.
Keywords
Pure Ti; Heterostructure; deformation mechanism; twinning; high strain rate
Subject
Engineering, Metallurgy and Metallurgical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
