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Chapter
Atomistic Study of Disclinations in Nanostructured Metals
Disclination is a line defect in which rotational symmetry is broken. Recently, such defects have been observed in nanostructured metals. Hence, disclinations can bring out the unique properties of nanostructu...
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Article
Open AccessInvestigating the dislocation reactions on Σ3{111} twin boundary during deformation twin nucleation process in an ultrafine-grained high-manganese steel
Some of ultrafine-grained (UFG) metals including UFG twinning induced plasticity (TWIP) steels have been found to overcome the paradox of strength and ductility in metals benefiting from their unique deformati...
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Article
Open AccessA correlation between grain boundary character and deformation twin nucleation mechanism in coarse-grained high-Mn austenitic steel
In polycrystalline materials, grain boundaries are known to be a critical microstructural component controlling material’s mechanical properties, and their characters such as misorientation and crystallographi...
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Chapter
Roles of Grain Boundaries in the Strength of Metals by Using Atomic Simulations
Roles of grain boundaries in the strength of ultrafine-grained metals are investigated using conventional molecular dynamics and quasicontinuum simulations. Two problems are considered: (a) grain-size dependen...
