Grain boundary evolution of highly nanotwinned alloys: Effect of initial twinned microstructure
Grain boundary evolution of highly nanotwinned alloys: Effect of initial twinned microstructure
复制标题
DOI：
10.1016/j.scriptamat.2020.08.024
复制
发表时间：
2021-01-01
影响因子：
6
通讯作者：
Hodge, Andrea M.
中科院分区：
文献类型：
--
作者：
Bahena, Joel A.;Juarez, Theresa;Hodge, Andrea M.
比较了初始孪晶组织对四种溅射纳米孪晶铜合金晶粒生长行为的影响。通过透射电子显微镜和退火样品的微观结构的演变进行了研究，通过电子背散射衍射的沉积膜的特征。织构显示出显著的效果，其中具有强{111}织构的膜表现出在随机织构化膜中未观察到的异常晶粒生长。此外，由孪晶边界引起的稳定性似乎是有限的，因为大孪晶密度产生的过剩能量可能会导致异常晶粒生长和再结晶的早期发生。(C)2020 Acta Materialia Inc.由爱思唯尔有限公司出版。保留所有权利。
The effects of initial twinned microstructure on the grain growth behavior of four sputtered nanotwinned copper alloys were compared. As-deposited films were characterized by transmission electron microscopy and the microstructural evolution of the annealed samples was investigated through electron backscatter diffraction. Texture showed a pronounced effect, where films with strong {111} textures exhibited abnormal grain growth that was not observed in a randomly textured film. Additionally, the stability induced by twin boundaries appears to be limited, as the excess energy generated by a large twin density could drive the early onset of abnormal grain growth and recrystallization. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.