Dynamic precipitation during high-pressure torsion of a magnesium-manganese alloy
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866910054488211456 |
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| author | Rosalie, Julian M. Hohenwarter, Anton |
| author_facet | Rosalie, Julian M. Hohenwarter, Anton |
| contents | An ultrafine grained magnesium alloy has been produced through room temperature high-pressure torsion (HPT) of solutionised Mg-1.35 wt.%Mn. Dynamic precipitation of nanometer-scale Mn particles occurred during deformation. These particles populated the grain boundaries, acting as pinning sites which allowed the alloy to develop a grain size of 140 nm after 0.5 rotations. Further HPT deformation resulted in a gradual increase in grain size with no increase in precipitate size. Despite the extensive deformation applied, the alloy did not develop a bimodal grain structure and retained a grain size of 230 nm after 10 complete rotations, demonstrating the stability and effectiveness of these pinning particles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_15235 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Dynamic precipitation during high-pressure torsion of a magnesium-manganese alloy Rosalie, Julian M. Hohenwarter, Anton Materials Science An ultrafine grained magnesium alloy has been produced through room temperature high-pressure torsion (HPT) of solutionised Mg-1.35 wt.%Mn. Dynamic precipitation of nanometer-scale Mn particles occurred during deformation. These particles populated the grain boundaries, acting as pinning sites which allowed the alloy to develop a grain size of 140 nm after 0.5 rotations. Further HPT deformation resulted in a gradual increase in grain size with no increase in precipitate size. Despite the extensive deformation applied, the alloy did not develop a bimodal grain structure and retained a grain size of 230 nm after 10 complete rotations, demonstrating the stability and effectiveness of these pinning particles. |
| title | Dynamic precipitation during high-pressure torsion of a magnesium-manganese alloy |
| topic | Materials Science |
| url | https://arxiv.org/abs/2511.15235 |