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Modeling of abnormal grain growth in (111) oriented and nanotwinned copper
A M Gusak1, Kuan-Ju Chen2,3, K N Tu4,5
1Department of Physics, Cherkasy National University, Cherkasy, Ukraine.
Scientific Reports
|October 15, 2021
Abstract:
Uni-modal, not bi-modal, of abnormal grain growth has been observed in (111) oriented and nano-twinned Cu films. Because of the highly anisotropic microstructure, our kinetic analysis and calculation showed that it is the mobility which dominates the uni-modal growth, in which the lateral growth rate can be two orders of magnitude higher than the vertical growth rate. As a consequence, the abnormal grain growth has been converted from bi-modal to uni-modal.

