Journal
MATERIALS CHARACTERIZATION
Volume 163, Issue -, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2020.110295
Keywords
Mg-RE alloy; LPSO phase; Mg-Gd-Y-Zn-Zr; Solution treatment; Microstructure; Mechanical properties
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Funding
- China Postdoctoral Science Foundation [2017M611748]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [SJCX19_0586]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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The effect of solution treatment on the microstructures and mechanical properties of the Mg-6Gd-3Y-1.5Zn-0.6Zr alloy was investigated using optical microscopy, scanning electron microscopy, transmission electron microscopy, and tensile tests. After solution treatment, the growth of a new lamellar long-period stacking ordered phase from the grain boundary to the inner grain was observed. The alloy exhibited improved mechanical properties after 5 h of treatment at 500 degrees C and reached its peak aging hardness after 4 h at 200 degrees C.
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