Rheo-diecasting process for semi-solid aluminum alloys

被引：0
作者：
Hongmin Guo
Xiangjie Yang
Bin Hu
Guanglei Zhu
机构：
[1] Nanchang University,Department of Materials Science and Engineering
[2] Nanchang University,Department of Mechanical and Electronic Engineering
来源：
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2007年 / 22卷
关键词：
semi-solid processing; rheocasting; aluminum alloys; microstructure; mechanical properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A novel one-step semisolid processing technique, the rheo-diecasting (RDC) process, was developed, which adapts in situ creation of semisolid metal slurry with fine and spherical solid particles followed by direct shaping of the slurry into a near-net shape component using the existing cold chamber diecasting process. The RDC process was applied to process A356 and A380 aluminum alloys. The resulting microstructures and mechanical properties of RDC products under as-cast and various heat treatment conditions were analyzed. The experimental results show that the RDC samples have an extremely low porosity, a fine and uniform microstructure throughout entire casting, and consequently much improved strength and ductility in the as-cast condition. The strength of RDC A356 alloy can be substantially improved under T5 and T6 heat treatments without loss of ductility.
引用
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页码：590 / 595
页数：5
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