Orientation effects on acoustic emission during tensile deformation of hot rolled magnesium alloy AZ31

被引:60
作者
Bohlen, J
Chmelík, F
Dobron, P
Kaiser, F
Letzig, D
Lukác, P
Kainer, KU
机构
[1] GKSS Forschungszentrum Geesthacht GmbH, D-21502 Geesthacht, Germany
[2] Charles Univ, Dept Met Phys, CZ-12116 Prague 2, Czech Republic
关键词
metals; dislocations; acoustic properties; ultrasonic;
D O I
10.1016/j.jallcom.2003.10.102
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Acoustic emission (AE) is observed during tensile testing of commercial AZ31 magnesium sheets in different temper conditions. Tests were conducted in rolling direction (RD) and transverse direction (TD), respectively. The results are discussed with respect to the crystallographic texture and the microstructure in terms of the orientation-dependent activation of different deformation mechanisms like dislocation glide and twinning. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:207 / 213
页数:7
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