TRANSMISSION OF DEFORMATION TWINS ACROSS GRAIN BOUNDARIES IN NANOCRYSTALLINE AND ULTRAFINE-GRAINED METALS

被引：0
|
作者：
Ovid'ko, I. A. [1 ,2 ,3 ]
Sheinerman, A. G. [1 ,2 ,3 ]
机构：
[1] Peter Great St Petersburg Polytech Univ, Res Lab Mech New Nanomat, St Petersburg 195251, Russia
[2] St Petersburg State Univ, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
[3] Russian Acad Sci, Inst Problems Mech Engn, Bolshoj 61, St Petersburg 199178, Russia
来源：
REVIEWS ON ADVANCED MATERIALS SCIENCE | 2016年 / 45卷 / 1-2期
关键词：
GENERATION; NANOMATERIALS; ALUMINUM; COPPER;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Transmission of nanoscale deformation twins across grain boundaries in nanocrystalline and ultrafine-grained metallic materials is theoretically described. The energy and stress characteristics of twin transmission across grain boundaries in nanocrystalline and ultrafine-grained metals are revealed. It is found that for small twin thicknesses, the critical stress for twin transmission in Cu is close to the typical values of the yield stress, and so twin transmission can actually occur in the course of deformation of nanocrystalline and ultrafine-grained Cu.
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页码：76 / 83
页数：8
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