Interaction of Migrating Twin Boundaries with Obstacles in Magnesium

Autor: Andriy Ostapovets, Konstantin Kushnir, Kristián Máthis, Filip Šiška
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Metals, Vol 11, Iss 1, p 154 (2021)
Druh dokumentu: article
ISSN: 2075-4701
DOI: 10.3390/met11010154
Popis: Interaction of migrating {101¯2} twin boundary with obstacles was analyzed by atomistic and finite elements computer simulations of magnesium. Two types of obstacles were considered: one is a non-shearable obstacle and another one is the void inside bulk material. It is shown that both types of obstacles inhibit twin growth and increased stress is necessary to engulf the obstacle in both cases. However, the increase of critical resolved shear stress is higher for the passage of the twin boundary through raw of voids than for interaction with non-shearable obstacles.
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