循环镦挤在AZ91D镁合金半固态工艺中的应用（英文）

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Bibliographic Details
Published in中国有色金属学报：英文版 no. 4; pp. 909 - 915
Main Author 陶健全 姜巨福 陈红 肖远伦 张荣朝 胡庆华 赵军 赵强
Format Journal Article
LanguageEnglish
Published 2013
Subjects
AZ91D镁合金
力学性能
半固态工艺
循环镦挤
组织
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Bibliography:43-1239/TG
The microstructural evolution of AZ91D magnesium alloy prepared by means of the cyclic upsetting-extrusion and partial remelting was investigated. The effects of remelting temperature and holding time on microstructure of semi-solid AZ91D magnesium alloy were studied. Furthermore, tensile properties of thixoextruded AZ91D magnesium alloy components were determined. The results show that the cyclic upsetting-extrusion followed by partial remelting is effective in producing semi-solid AZ91D magnesium alloy for thixofonning. During the partial remelting, with the increase of remelting temperature and holding time, the solid grain size increases and the degree of spheroidization tends to be improved. The tensile mechanical properties of thixoextruded AZ91D magnesium alloy components produced by cyclic upsetting-extrusion and partial remelting are better than those of the same alloy produced by casting.
AZ91D magnesium alloy; semi-solid processing; cyclic upsetting-extrusion; mechanical properties; microstructure
Jian-quan TAO, Ju-fu JIANG, Hong CHEN, Yuan-lun XIAO, Rong-chao ZHANG, Qing-hua HU, Jun ZHAO, Qiang ZHAO（ 1. Southwest Technique and Engineering Institute, Chongqing 400039, China; 2. School of Materials and Engineering, Harbin Institute of Technology, Harbin 150001, China）
ISSN:1003-6326