中文摘要：

采用电磁连铸和普通连铸技术制备了Al-1％Si合金棒材，对其微观组织及力学性能进行了分析。结果表明：电磁连铸技术得到的合金晶粒细小，且硅的分布比较均匀；其硬度比普通连铸得到的合金提高6％，抗拉强度提高7．2％，伸长率提高21．2％；其断口表面韧窝比较深，韧性好，且有大量滑移线存在。

英文摘要：

The electromagnetic continuous casting （EMCC） and direct chill continuous casting （DCC） methods were used to make Al-1% Si alloy, respectively. The crystal structure and mechanical properties were analyzed. Compared with DCC, EMCC ingots have more fine size of grain and the element Si distributed uniformly; the hardness, tensile strength and elongation are increased by about 6%, 7. 2% and 21.2% respectively; the dimple of fracture face is deeper; the toughness is higher; and there are numerous slip lines.