- 期刊
微量Sc對Al-Si-Mg合金特性影響
Effects of Trace Element Sc Trace Quantity Addition on the Properties of the Al-Si-Mg Alloy
摘要
本研究主要探討添加微量鈧（0.2-0.8wt%）對於Al-Si-Mg合金鑄造狀態及T6熱處理後微結構、硬度、韌性、阻抗性、拉伸強度及破斷行為的影響。利用光學顯微鏡、X光繞射（XRD）、掃描式電子顯微鏡（SEM）分析材料微結構，並用萬能試驗機及微硬度試驗機量測機械性質。實驗結果顯示，在A356.2鋁合金中添加0.4wt%Sc，可有效抑制樹枝狀晶粒成長，並獲得最佳的強度與硬度。
並列摘要
The influence of trace 0.2-0.8 wt% scandium on the microstructures, tensile properties and fracture behavior of Al-Si-Mg alloys were investigated under as-cast condition and T6 treatment. The microstructure of alloys was observed by optic microscope (OM), X-ray diffraction (XRD), scanning electron microscope (SEM), and mechanical properties were measured. Experimental results show that the dendritic structure can be inhibited, when the scandium content is over 0.4 wt%, and the tensile strength and hardness can be optimal for the content of 0.4 wt% scandium.
延伸閱讀
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