Ultrafine-grained Mg-Zn-Y-Zr alloy with remarkable improvement in superplasticity

•Ultrafine-grained structures fabricated by severe plastic deformation was proposed.•Refining of recrystallized grains and uniform diespersed precipitates were obtained.•The superplastic enlogation of 642% was achieved at 450 °C.•Friction stir processing is feasible to construct superplasticity Mg-Z...

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Veröffentlicht in:Materials letters 2021-11, Vol.303, p.130524, Article 130524
Hauptverfasser: Chen, Huizi, Wang, Jian, Meng, Xiangchen, Xie, Yuming, Li, Yulong, Wan, Long, Huang, Yongxian
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Sprache:eng
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