Revealing extreme twin-boundary shear deformability in metallic nanocrystals.
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ABSTRACT:
SUBMITTER: Zhu Q
PROVIDER: S-EPMC8442924 | biostudies-literature | 2021 Sep
REPOSITORIES: biostudies-literature
Publications
Revealing extreme twin-boundary shear deformability in metallic nanocrystals.
Zhu Qi Q Kong Lingyi L Lu Haiming H Huang Qishan Q Chen Yingbin Y Liu Yue Y Yang Wei W Zhang Ze Z Sansoz Frederic F Zhou Haofei H Wang Jiangwei J
Science advances 20210901 36
Metals containing abundant coherent twin boundaries (TBs) are able to sustain substantial plastic deformation without fracture due to shear-induced TB migration and sliding. Retaining ductility in these metals, however, has proven difficult because detwinning rapidly exhausts TB migration mechanisms at large deformation, whereas TB sliding was only evidenced for loading on very specific crystallographic orientations. Here, we reveal the intrinsic shear deformability of twins in nanocrystals usin ...[more]
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