Preparation and microstructure analysis of Al-1%Si single crystal
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摘要: 在自制的真空熔煉、氬氣保護下拉式連續定向凝固設備上成功制取了具有單晶組織的φ8mm Al-1%Si合金棒材,并對其組織演變過程及穩定性進行了研究.分析了定向凝固過程中,硅顆粒在單晶組織中的分布形態,提出了使硅固溶或彌散均勻分布于鋁基體中的措施.Abstract: An Al-1%Si bar with 8 mm in diameter and single crystal was made with self-made vacuum vertical continuous unidirectional casting equipment. The microstructure evolution and stability during continuous unidirectional solidification were studied. The Si distribution of particles in Al matrix was analyzed and a method was proposed that can make Si diffuse in Al homogeneously.
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