Investigation of twin-twin interaction in deformed magnesium alloy

0496946 - ÚFM 2019 RIV GB eng J - Článek v odborném periodiku
Sun, Q. - Ostapovets, Andriy - Zhang, X. - Tan, L. - Liu, Q.
Investigation of twin-twin interaction in deformed magnesium alloy.
Philosophical Magazine. Roč. 98, č. 9 (2018), s. 741-751. ISSN 1478-6435. E-ISSN 1478-6443
Grant CEP: GA ČR(CZ) GA16-14599S; GA MŠMT(CZ) LQ1601
Institucionální podpora: RVO:68081723
Klíčová slova: 0 (1)over-bar 2 * deformation mechanisms * 10(1)over-bar2 twin * room-temperature * nucleation * behavior * growth * metals * tip * Twin * twin-twin boundaries * interaction * twinning disconnection * tem * hrtem * magnesium alloy
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 1.855, rok: 2018

Using transmission electron microscopy, we characterised the structures of the boundary caused by the interactions between different {1 0 1 2} twin variants that share the same [ 1 1 2 0] zone axis in a deformed magnesium alloy. We found that the twin- twin boundaries can adopt the habit planes that are parallel to the (0 0 0 2) basal plane or the (1 0 1 0) prismatic plane or the (1 0 1 2) twinning plane of the interacting twins. To investigate the formation mechanism of various twin- twin boundaries, we also performed atomic simulations. The results indicate that the formation of a twin- twin boundary may be related to the reaction of twinning disconnections that glide on the basal- prismatic planes of the interacting twins.
Trvalý link: http://hdl.handle.net/11104/0289552