期刊
Scientific Reports
卷 7, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep40846
关键词
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资金
- National Key Research and Development Program of China [2016YFB0301102]
- JSPS [16K18266]
- National Nature Science Foundation of China [51271063, 51571068]
- JST, Advanced Low Carbon Technology Research and Development Program (ALCA) [12102886]
- Grants-in-Aid for Scientific Research [15J12688, 16K18266] Funding Source: KAKEN
High performance Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr alloy with high strength and excellent ductility has been successfully developed by hot extrusion. The effect of plate-shaped long period stacking ordered (LPSO) phases and solute-segregated stacking faults (SFs) on the dynamically recrystallization (DRX) behavior was analyzed. The plate-shaped LPSO phases stimulate the DRX by particle stimulated nucleation mechanism, leading to higher DRX ratio and weaker basal texture. While for the alloy with dense fine SFs inside the original grains, discontinuous DRX initially occurs at the original grain boundaries, and the DRX is obviously restricted. Consequently, alloy containing dense SFs exhibits higher strength but lower ductility compared with alloy with plated-shaped LPSO phases.
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