Preparation of sound ribbons with submicrometer-grained microstructure on a Mg-Zn alloy

In this paper, a viable way to fabricate Mg alloy sound ribbons with ultra-fine-grained microstructure was presented. The hot-rolled and annealed Mg-0.4Zn （at%） alloy exhibited excellent rollability to form sound ribbons with submicrometer grains when subjected to one-pass cold rolling process. The...

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Bibliographic Details
Published in:中国科学通报：英文版 2015 (5), p.570-573
Main Author: Xing-Hao Du Min Hong Guo-Sheng Duan Bao-Lin Wu Yu-Dong Zhang Claude Esling
Format: Article
Language:English
Subjects:
亚微米晶
亚微米颗粒
动态再结晶
声音
微观结构
显微组织
色带
镁锌合金
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Summary:In this paper, a viable way to fabricate Mg alloy sound ribbons with ultra-fine-grained microstructure was presented. The hot-rolled and annealed Mg-0.4Zn （at%） alloy exhibited excellent rollability to form sound ribbons with submicrometer grains when subjected to one-pass cold rolling process. The more balanced multi-mode dislocation slips originated from the significant decrease of critical resolved shear stress for non-basal slip with the addition of solute Zn and the favorable crystallographic orientation were suggested to be responsible for the excellent cold rollability. The formation of ultra-fine-grained microstructure was attributed to low-temperature dynamic recrystallization occurring during the cold rolling process with large strain.
ISSN:1001-6538
1861-9541