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

Huizi Chen, Jian Wang, Xiangchen Meng, Yuming Xie, Yulong Li, Long Wan, Yongxian Huang

科研成果: 期刊稿件文章同行评审

21 引用 (Scopus)

摘要

Ultrafine-grained structure in Mg-Zn-Y-Zr alloy was achieved towards extraordinary superplasticity induced by friction stir processing. Grain refinement and homogeneous dispersion of precipitates were promoted by the coupled thermo-mechanical effect. The ultra-fined grains size of 1.9 ± 0.4 μm and the superplastic elongation of 642% were obtained. Grain boundary sliding was considered as the predominant superplastic deformation mechanism in ultrafine-grained materials.

源语言英语
文章编号130524
期刊Materials Letters
303
DOI
出版状态已出版 - 15 11月 2021
已对外发布

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