Twinning and De-twinning via Glide and Climb of Twinning Dislocations along Serrated Coherent Twin Boundaries in Hexagonal-close-packed Metals

By Jian Wang, L. Liu, C. Tomé, S. Mao, S. Gong. 2013

191 citations recorded by the source corpus.

The (1¯012) twin boundaries experimentally observed in hexagonal-close-packed metals are often serrated rather than fully coherent. These serrated coherent twin boundaries (SCTBs) consist of sequential (1¯012) coherent twin boundaries and parallel basal–prismatic planes serrations (BPPS). We demonstrated that the formation of BPPS is geometrically and energetically preferred in the SCTBs, and an SCTB thus migrates by glide and climb of twinning dislocations, combined with atomic shuffling. Particularly, the climb mechanism, combined with the density and the height of BPPSs in the SCTBs, could be crucial in controlling twinning and de-twinning, and twinning-associated hardening.

Subfields: Biomaterials, Materials Chemistry, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/7c5d000c771f63e88ab6e40bdfd679a652c3cef6

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomaterials

1. C. Tomé
2. Irene J. Beyerlein
3. Jian Wang
4. J. Hirth
5. S. Yadav
6. Peidong Wu
7. S. Agnew
8. Rodney J. McCabe

In Materials Chemistry

1. C. Tomé
2. Irene J. Beyerlein
3. Jian Wang
4. J. Hirth
5. S. Yadav
6. A. Misra
7. Marko Knezevic
8. Rodney J. McCabe

In Mechanical Engineering

1. C. Tomé
2. Irene J. Beyerlein
3. Jian Wang
4. J. Hirth
5. A. Misra
6. Peidong Wu
7. Marko Knezevic
8. Jiahao Cheng

Citations in the corpus

• Pure-Shuffle Nucleation of Deformation Twins in Hexagonal-Close-Packed Metals (2013, background): “The GBs excess energies are of 122, 170, 230, and 340 mJ/m2, corresponding to CTB, GB1, GB2, and the STGB, respectively, [26, 38] so the surface energy change is small when the twin forms.”