Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 840, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2020.155682
Keywords
High-pressure solidification; Metals and alloys; Mechanical properties; Phase transitions
Categories
Funding
- National Natural Science Foundation of China [51901080]
- Guangdong Basic and Applied Basic Research Foundation [2019A1515010039]
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The mechanical properties of Mg77.5Zn8.5Y14 (at%) alloys solidified under various pressures were studied to clarify the effect of the solidification pressure and pressure-induced Mg64Zn15Y21 phase on the mechanical properties. The results showed that hardness, compressive properties were greatly improved simultaneously. The presence of Mg64Zn15Y21 phase increased the ultimate strength, but reduced the elongation. The eutectic and Mg64Zn15Y21 phase coexisted uniformly, this composite structure improved mechanical properties significantly. In addition, the mechanical properties were also affected by the pressure-induced solid solubility change, eutectic spacing and microstructure. (c) 2020 Elsevier B.V. All rights reserved.
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