|Title||Defective twin boundaries in nanotwinned metals|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Wang, YM, Sansoz, F, LaGrange, T, Ott, RT, Marian, J, Barbee, TW, Hamza, AV|
|Type of Article||Article|
|Keywords||anisotropy, copper, deformation mechanisms, maximum strength, nanoscale, orientation, plastic-deformation|
ations demonstrating that as-grown CTBs in nanotwinned copper are inherently defective with kink-like steps and curvature, and that these imperfections consist of incoherent segments and partial dislocations. We further show that these defects play a crucial role in the deformation mechanisms and mechanical behaviour of nanotwinned copper. Our findings offer a view of the structure of CTBs that is largely different from that in the literature(2,4,5), and underscore the significance of imperfections in nanotwin-strengthened materials.
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