Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 727, Issue -, Pages 205-214Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.07.225
Keywords
Magnesium alloys; Hot compression; Second phase; Dynamic recrystallization; Texture
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Funding
- National Great Theoretic Research Project [2013CB632200]
- National Natural Science Foundation of China [51571040, 51531002]
- National Great Engineering Research Project [2016YFB0301101]
- Chongqing Research Program of Basic Research and Frontier Technology [cstc2015jcyjBX0036]
- Chongqing University's large-scale equipment
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Hot compression deformation tests of AZ80 and AZ80-2 wt.% Sn magnesium alloys were performed on Gleeble-1500 at deformation temperature of 350 degrees C and strain rate of 0.1 s(-1) to analyze the effect of Sn on the microstructure evolution. The results indicated that the addition of Sn promoted dynamic recrystallization and decreased flow stress during hot compression. Dynamic dissolution of discontinuous precipitation Mg17Al12 phases was promoted and dynamic precipitation of Mg17Al12 phases was suppressed in AZ80-2 wt.% Sn alloy. The quantity of Mg17Al12 phases of thermally compressed AZ80-2 wt.% Sn alloy was less than that of AZ80 alloy. Texture intensity increased in AZ80-2 wt.% Sn alloy during hot compression due to Mg17Al12 phases effectively induced particle-stimulated nucleation in recrystallization. (C) 2017 Elsevier B.V. All rights reserved.
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