Nanoindentation study for deformation twinning of magnesium single crystal

被引：57
|
作者：
Shin, J. -H. [1 ,2 ]
Kim, S. -H. [2 ]
Ha, T. K. [3 ]
Oh, K. H. [2 ]
Choi, I. -S. [1 ]
Han, H. N. [2 ]
机构：
[1] Korea Inst Sci & Technol, High Temp Energy Mat Res Ctr, Seoul 136791, South Korea
[2] Seoul Natl Univ, Dept Mat Sci & Engn, RIAM, Seoul 151744, South Korea
[3] Gangneung Wonju Natl Univ, Dept Adv Met & Mat Engn, Kangnung 210702, Gangwon, South Korea
来源：
SCRIPTA MATERIALIA | 2013年 / 68卷 / 07期
关键词：
Magnesium; Transmission electron microscopy; Nanoindentation; Single crystalline; Twin; NONBASAL SLIP; HCP METALS; ALLOYS; MG; MICROCOMPRESSION; MECHANISMS;
D O I：
10.1016/j.scriptamat.2012.11.030
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The small-scale deformation behavior of single-crystalline Mg was investigated using nanoindentation combined with transmission electron microscopy observation. The nanoindentation on both basal and second-order prismatic planes activated the tensile twin system at different positions. The concept of twin-favorable zones was chosen to explain the tensile twin formation by indentation on both basal and prismatic planes. Besides < c + a > dislocation, this study proves that the tensile twin formation plays a role in accommodating the strain induced by the nanoindentation of single-crystalline Mg. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：483 / 486
页数：4
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