About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Advances in Multi-Principal Element Alloys III: Mechanical Behavior
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Presentation Title |
D-11: Elucidating the Tensile Properties in Ni-containing Medium-Mn Steel from the Perspective of Microstructure and Microtexture Evolution |
Author(s) |
Suman Kumar, Rahul Rakshit, A Durga Prasad, Bhagyaraj Jayabalan, Subrata Mukherjee, Sumantra Mandal |
On-Site Speaker (Planned) |
Suman Kumar |
Abstract Scope |
The effect of heterogeneous microstructure and micro-textural evolution on tensile properties in Ni-containing medium-Mn steel realized through hot forging (HF1373K) and hot rolling (HR1373K) at 1373K temperature is systematically investigated. The microstructures of both specimens mostly comprises of lath-type martensite, film-like austenite and B2 precipitates. The HR1373K specimen exhibits superior strength (UTS ~1868 ± 69 MPa) and ductility (~16.5 ± 1%) than HF1373K condition. The presence of twin martensite, smaller prior austenite grain size, higher fraction of high angle grain boundaries as well as ∑3 boundaries enhances the tensile properties of HR1373K specimen. Further, the higher intensity of γ-fiber leads to better ductility in HR1373K specimen, whereas the development of high-intensity Cube texture results in poor tensile properties in HF1373K condition. In addition, the Visco-Plastic Self Consistent (VPSC) simulation has been performed to understand the complex-interplay between the activation of slip systems and strain hardening behavior of the specimens. |
Proceedings Inclusion? |
Planned: |
Keywords |
Iron and Steel, Mechanical Properties, Characterization |