RESEARCH ARTICLE


Orthogonal Experiment in Rheocasting-Rolling for Semi-Solid Magnesium Alloy Used by Slope and Mechanical Stirring



Ying Zhang*, 1, Qiang Ma1, Shuisheng Xie2, Jinhua Xu1, Hongmin Guo1
1 Department of Mechanical and Electronic Nanchang University, 330029, China
2 State Key Laboratory for Fabrication & Processing of Non-ferrous Metals, General Research Institute for Non-ferrous Metals, 100088, China


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© 2011 Zhang et al;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Mechanical and Electronic Nanchang University, Nanchang,330029, China; Tel: +86-13879120781; E-mail: yzhan@ncu.edu.cn


Abstract

The experiment of the rheocasting-rolling for semi-solid magnesium was carried out on the equipment made by ourselves in our laboratory. Semi-solid AZ91D magnesium slurry was prepared by cooling slope and mchanical sirring The evolution of microstructure under different technological parameters were studied. The results show that the technological parameters have great influence on the microstructure of the semi-solid magnesium slurry. The results show that the optimum parameters of slope method were: pouring temperature 630 degrees; angle of slope 60°; length of slope 0.570m. the optimum parameters of slope method were: stirring rate 500r/min ; holding time 10min; stirring time 15min; casting temperature 560 degrees.

Keywords: Magnesium alloy, semi-solid, rheocasting-rolling, microstructure.