一般鋁合金在磨耗性質、熱機性質上較不具優勢，本研究藉由添加矽元素進行改善，添加矽含量至25wt.%及30wt.%，利用噴覆成型製程製備高矽量Al-25Si-2.5Fe-10Zn-1Mg及Al-30Si-2.5Fe-10Zn-1Mg合金，其顯微組織具細小且均勻分布的Si顆粒及第二相，改善一般鋁合金及高矽鋁合金的機械性質。
藉由高溫壓縮試驗探討噴覆成型之Al-25Si-2.5Fe-10Zn-1Mg及Al-30Si-2.5Fe-10Zn-1Mg合金的熱變形行為，研究變形溫度、應變速率及矽含量對材料塑性變形行為之影響，並計算材料Zenner-Hollomon常數了解材料在塑性變形時流變應力、顯微組織與變形溫度、應變速率的關係。
利用間接擠型製程探討噴覆成型之Al-25Si-2.5Fe-10Zn-1Mg及Al-30Si- 2.5Fe-10Zn-1Mg合金的加工性，分析擠型棒材的顯微組織了解擠型溫度、平均應變速率的影響，並於室溫25℃及高溫250℃下進行擠型棒材的拉伸試驗，探討間接擠型參數對材料室溫、高溫機械性質之影響。

General aluminum alloys have no superiority over the wear properties and thermos- mechanical properties. By adding Si element could improve those properties. In this study, we increased the Si content to 25wt.% and 30wt.% in aluminum alloys. Spray forming process was employed to produce the high Si-containing Al-25Si-2.5Fe-10Zn-1Mg and Al-30Si-2.5Fe-10Zn-1Mg alloys, which have uniform distribution of fine Si particles and secondary phases in matrix. It showed improved mechanical properties compared to Al and Al-Si alloys.
Compression test at elevated temperature was employed to research the hot deformation behavior. The author studied the effects of temperature, strain rate and Si content upon the behavior of plastic deformation of material. Furthermore, we calculated the Zenner- Hollomon parameter to study the relation of flow stress and microstructure between the temperature and strain rate.
The indirect extrusion process was employed to research the workability of Al-25Si-2.5Fe- 10Zn-1Mg and Al-30Si- 2.5Fe-10Zn-1Mg alloys. Furthermore, we observed to the microstructure of extrude rods to know the effects of temperature, mean strain rate and Si content. And we studied the effect of extrusion parameters on the tensile properties at room and elevated temperature.

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