Evolution of microstructure and mechanical properties of A356 aluminium alloy processed by hot spinning process |
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| Authors: | Xiao-yan Wu Hua-rui Zhang Huan-liang Chen Li-na Jia Hu Zhang |
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| Affiliation: | 1. School of Materials Science and Engineering, Beihang University, Beijing 100191, China;2. Beijing Key Laboratory for Advanced Functional Material and Thin Film Technology, Beihang University, Beijing 100191, China |
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| Abstract: | The evolution of microstructure and mechanical properties of A356 aluminum alloy subjected to hot spinning process has been investigated.The results indicated that the deformation process homogenized microstructure and improved mechanical properties of the A356 aluminum alloy.During the hot spinning process,eutectic Si particles and Fe-rich phases were fragmented,and porosities were eliminated.In addition,recrystallization of Al matrix and precipitation of AlSiTi phases occurred.The mechanical property testing results indicated that there was a significant increase of ductility and a decrease of average microhardness in deformed alloy over die-cast alloy.This is attributed to uniform distribution of finer spherical eutectic Si particles,the elimination of casting defects and to the recrystallized finer grain structure. |
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| Keywords: | hot spinning process A356 aluminum alloy microstructure mechanical properties |
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