MAIN PATTERNS OF LATTICE FRAGMENTATION IN COPPER PROCESSED BY DYNAMIC EQUAL-CHANNEL ANGULAR PRESSING

被引：0
|
作者：
Rybin, V. V. [1 ,2 ]
Zolotorevsky, N. Yu. [1 ,2 ]
Ushanova, E. A. [2 ,3 ]
Sergeev, S. N. [4 ]
Matvienko, A. N. [1 ,2 ]
Khomskaya, I. V. [5 ]
Abdullina, D. N. [5 ]
机构：
[1] Peter Great Polytech Univ, Inst Appl Math & Mech, St Petersburg 195251, Russia
[2] Russian Acad Sci, Mech Engn Res Inst, Nizhnii Novgorod 603024, Russia
[3] Cent Res Inst Struct Mat Prometey, St Petersburg 191015, Russia
[4] Russian Acad Sci, Inst Superplast Problems, S Khalturina Str 39, Ufa, Russia
[5] Russian Acad Sci, MN Miheev Inst Met Phys, Ural Branch, S Kovalevskaya Str 18, Ekaterinburg 620108, Russia
来源：
REVIEWS ON ADVANCED MATERIALS SCIENCE | 2017年 / 52卷 / 1-2期
基金：
俄罗斯科学基金会;
关键词：
GRAIN SUBDIVISION; DEFORMATION; BOUNDARIES; ALGORITHM; EVOLUTION; METALS;
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：
EBSD study of copper microstructure fragmentation under condition of high-speed deformation by dynamic channel angular pressing (DCAP) is presented. It has been shown that, in addition to regular fragmentation, extensive deformation twinning occurs during single DCAP pass. A local analysis of the misorientation evolution at individual twin boundaries during plastic deformation was conducted. Based on this analysis, the relationship between the deviation from exact twin misorientation and the strain, at which the twin has been nucleated, is suggested. The deformation twins are shown to appear mostly at a final stage of deformation, though the twinning seems to occur over whole pass of DCAP.
引用
收藏
页码：54 / 60
页数：7
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