期刊
SCRIPTA MATERIALIA
卷 136, 期 -, 页码 41-45出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2017.04.001
关键词
Magnesium alloys; Shear band; Recrystallization; Stacking faults; Texture
类别
资金
- DFG - German Research Foundation [YI103/1-2]
- NST - National Research Council of Science & Technology by the Korea government (MSIP) [CRC-15-06-KIGAM]
- Engineering and Physical Sciences Research Council [EP/N007638/1] Funding Source: researchfish
- EPSRC [EP/N007638/1] Funding Source: UKRI
- Grants-in-Aid for Scientific Research [26709055] Funding Source: KAKEN
We examined the microstructure and texture evolution during the recrystallization annealing of cold rolled Mg-1Y and Mg-0.2Zn-1Y alloys. At the early annealing stage, new grains are nucleated on sub-units with 200-300 nm surrounded by dislocation walls within shear bands. The Zn and Y addition reduced the stacking fault energy which results in the high activity of non-basal deformation mechanisms and formation of segregation zones along the stacking faults. This causes the orientation of recrystallization nuclei to be effectively retained so that the texture weakens during the recrystallization without reducing the basal pole split into the sheet transverse direction. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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