Quantification of internal dislocation density using scanning transmission electron microscopy in ultrafine grained pure aluminium fabricated by severe plastic deformation
Quantification of internal dislocation density using scanning transmission electron microscopy in ultrafine grained pure aluminium fabricated by severe plastic deformation
复制标题
DOI：
10.1016/j.msea.2010.09.058
复制
发表时间：
2010-12-15
期刊：
影响因子：
6.4
通讯作者：
Tsuji, Nobuhiro
中科院分区：
文献类型：
--
作者：
Miyajima, Yoji;Mitsuhara, Masatoshi;Tsuji, Nobuhiro
用扫描透射电子显微镜研究了大变形铝中超细晶内的位错密度。在等效应变高达10的商业纯铝样品中，该值约为10（14）m（-2）。根据Bailey-Hirsch关系，所获得的位错密度值对应于55 MPa和70 MPa之间的强度。(C)2010爱思唯尔有限公司版权所有。
Dislocation density within ultrafine grains in severely deformed aluminium was evaluated by the scanning transmission electron microscopy. The values were around 10(14) m(-2) in commercial pure aluminium samples with equivalent strain up to 10. The obtained dislocation densities values correspond to strength between 55 MPa and 70 MPa according to the Bailey-Hirsch relationship. (C) 2010 Elsevier B.V. All rights reserved.