Solid-liquid Mixed Casting of Al-Si Alloy

来源期刊：中南大学学报(英文版)2000年第3期

论文作者：CHEN Zhen-hua KANG Zhi-tao

文章页码：133 - 135

Key words：solid-liquid mixed casting; powder; melt

Abstract: The paper presents a novel material preparation technology—Solid-liquid mixed casting technology. In the technology, large amounts of homogeneous alloy powder or heterogenous powder with perfect wettability are added into the superheated melt. After strong agitation, the mixed melt can be cast or hot processed. Applying solid-liquid mixed casting, three kinds of AlSi alloys were investigated. The results show that, when the mass of powder accession to alloy melt is about 1, the mean size of primary Si in hyper-eutectic alloy can be controlled at less than 5 μ_m; and the mean grain size ofαphase in hypo-eutectic alloy is less than 10 μ_m. This technology has the advantage of preparing material with very fine microstructure by fairly simple casting process, and may be a new practicable and valuable metal preparation technology.