期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2021.142298
关键词
Magnesium alloy; Damping capacity; Mechanical properties; Twin; LPSO; SFs
类别
资金
- Natural Science Foundation of China [51771060, 51871068, 51971071, 52011530025]
- Domain Foundation of Equipment Advance Research of 13th Five-year Plan [61409220118]
- National Key Research and Development Program of China [2021YFE0103200]
- Zhejiang Province Key Research and Development Program [2021C01086]
- Open Foundation of Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education [HEU10202104]
- Heilongjiang Province Natural Science Foundation [LH2020E099]
- Fundamental Research Funds of Heilongjiang Province Education Project [1355MSYYB006, 1355MSYYB007]
- Project of Mudanjiang normal university [GP2020004]
The combination of extrusion and rolling processes can form twin and LPSO structures in magnesium alloys, which is beneficial for enhancing the damping and mechanical properties of the alloy.
Many common strengthening means are not favorable for damping capacity of alloys. While twin and long-period stacking ordered phase (LPSO) in magnesium alloys are beneficial to improve both damping and mechanical properties. To obtain a kind of Mg alloy with both high mechanical properties and damping capacity, it is proposed to introduce twin and LPSO structure into Mg-4Y-2Er-2Zn-0.6Zr (wt.%) alloy through extrusion and rolling. The influence of LPSO structure and twin on the mechanical properties and damping capacity was studied. The results show that, under the combined actions of extrusion and rolling, the twin form in both the matrix and LPSO phase, which is beneficial to synergistically enhance the damping and mechanical properties of the alloy.
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