Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 653, Issue -, Pages 93-98Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2015.12.002
Keywords
Mg alloy; Rolling; Texture; Recrystallization; Mechanical anisotropy
Categories
Funding
- National Key Basic Research Program of China [2013CB632204]
- Natural Science Foundation of China [51371203, 51131009, 51571041, 51421001]
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The influence of rolling path on texture and mechanical anisotropy of a Mg-2Zn-2Gd plate was investigated. The initial TD-split texture remains after rolling along RD and annealing at 450 degrees C for 1 h, whereas, after rolling along TD and annealing, changes into a RD-split one. TD, RD, and ND represent transverse direction, rolling direction and normal direction of the initial plate, respectively. Rolling path determines orientations of the recrystallized grains. The nuclei of recrystallized grains with basal poles distribution along the TD have a clear advantage over the ones along the RD in the RD-rolled and plates and vice-versa. This is the reason for formation of RD (TD)-split texture in the TD (RD)-rolled and annealed plate. A cross rolling alternately along TD and RD followed by annealing develops a texture with basal poles evenly distributing on a circle about 40 degrees away from ND. This cross rolled plate exhibits a completely removed planar mechanical anisotropy. (C) 2015 Elsevier B.V. All rights reserved.
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