Achieving fine grain structure and superplasticity in AZ91-0.4Sn magnesium alloy using short flow rolling process
Achieving fine grain structure and superplasticity in AZ91-0.4Sn magnesium alloy using short flow rolling process
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采用短流程轧制工艺实现 AZ91-0.4Sn 镁合金的细晶结构和超塑性
DOI:
10.1016/j.msea.2017.03.108
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发表时间:
2017-05
期刊:
影响因子:
--
通讯作者:
Qi–Chuan Jiang
中科院分区:
文献类型:
--
作者:
Zhao–Peng Yu;Min Zha;Zi–Hao Li;Cheng Wang;Hui–Yuan Wang;Qi–Chuan Jiang
We report a new rolling route combining one pass of hard-plate rolling and two passes of conventional rolling. This route is efficient in achieving near-spherical Mg17Al12phase (~0.5 µm) and uniform fine-grained structure (~3 µm) featuring a weakened texture in AZ91-0.4Sn plates after a total thickness reduction of ~86.4% via 3 rolling passes. Moreover, the processed alloy exhibited superplasticity-like fracture strain of ~96% at 200 °C, owing to fine α-Mg grains distributed with a high volume fraction of Mg17Al12. This new route significantly reduces rolling passes and hence has a great potential for industrial production.
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