Enhanced ductility in an Al–Mg2Si in situ composite processed by ECAP using a modified BC route
Enhanced ductility in an Al–Mg2Si in situ composite processed by ECAP using a modified BC route
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DOI：
10.1016/j.msea.2011.01.034
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发表时间：
2011-04
期刊：
影响因子：
6.4
通讯作者：
L. Bian;W. Liang;Guoyin Xie;Wenli Zhang;J. Xue
中科院分区：
文献类型：
--
作者：
L. Bian;W. Liang;Guoyin Xie;Wenli Zhang;J. Xue
设计了一种改进的BC-m工艺路线，并将其用于制备Al-Mg_2Si复合材料，以提高复合材料的塑性。实施的修改，以改善传统的BC路线的颗粒再分布的有效性，同时保持其高的晶粒细化效率。实验结果表明，路线BC-m是非常有效的重新分配颗粒，同时保持相当的微观组织细化效率相对于路线BC，这导致在复合材料中的极限拉伸强度和更高的延展性的增加。此外，使用BC路线导致更高的屈服强度，因为其更强的加工硬化效应相比，路线BC-m。
A modified BCroute, noted as BC-m, was designed and employed to process an Al–Mg2Si composite in an effort to improve the ductility of the composite. The modification was implemented to improve the effectiveness of particle redistribution of the conventional BCroute while maintaining its high grain refinement efficiency. The experimental results demonstrated that route BC-mwas strongly effective in redistributing particles while maintaining a comparable microstructural refinement efficiency relative to route BC, which led to an increase in ultimate tensile strength and much higher ductility in the composite. Additionally, the use of route BCresulted in higher yield strength because of its stronger work-hardening effect compared to route BC-m.