Origins of limited non-basal plasticity in the μ-phase at room temperature
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866911777993785344 |
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| author | Luo, W. Gasper, C. Zhang, S. Sun, P. L. Ulumuddin, N. Petrova, A. Lysogorskiy, Y. Drautz, R. Xie, Z. Korte-Kerzel, S. |
| author_facet | Luo, W. Gasper, C. Zhang, S. Sun, P. L. Ulumuddin, N. Petrova, A. Lysogorskiy, Y. Drautz, R. Xie, Z. Korte-Kerzel, S. |
| contents | We unveil a new non-basal slip mechanism in the μ-phase at room temperature using nanomechanical testing, transmission electron microscopy and atomistic simulation. The (1-105) planar faults with a displacement vector of 0.07[-5502] can be formed by dislocation glide. They do not disrupt the Frank-Kasper packing and therefore enable the accommodation of plastic strain at low temperatures without requiring atomic diffusion. The intersections between the (1-105) planar faults and basal slip result in stress concentration and crack nucleation during loading. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_08931 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Origins of limited non-basal plasticity in the μ-phase at room temperature Luo, W. Gasper, C. Zhang, S. Sun, P. L. Ulumuddin, N. Petrova, A. Lysogorskiy, Y. Drautz, R. Xie, Z. Korte-Kerzel, S. Materials Science We unveil a new non-basal slip mechanism in the μ-phase at room temperature using nanomechanical testing, transmission electron microscopy and atomistic simulation. The (1-105) planar faults with a displacement vector of 0.07[-5502] can be formed by dislocation glide. They do not disrupt the Frank-Kasper packing and therefore enable the accommodation of plastic strain at low temperatures without requiring atomic diffusion. The intersections between the (1-105) planar faults and basal slip result in stress concentration and crack nucleation during loading. |
| title | Origins of limited non-basal plasticity in the μ-phase at room temperature |
| topic | Materials Science |
| url | https://arxiv.org/abs/2308.08931 |