Abstract SiC particulate reinforced A356 alloy metal matrix composites (MMCs) are synthesized using intensive melt shearing. The effect of reinforcing particle distribution on the fluidity of cast A356/10 vol.% SiCp composites is studied. Spiral length representing the fluidity of the composite melt was measured and liquid flow and solidification behaviour were analysed. Improvement in the fluidity of composites is attributed to the uniform distribution of reinforcing particles by intensive melt shearing treatment. From the casting performance point of view, uniform dispersion of reinforcing particles achieved with the aid of intensive shearing improves the mechanical properties of A356/10 vol.% SiCp cast composites. Improved strength, rigidity and wear resistance of composites is attributed to the bulk homogeneity, significantly reducing casting defects.

中文翻译：

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增强颗粒分布对Al-SiCp复合材料铸造特性的影响

摘要 SiC 颗粒增强 A356 合金金属基复合材料 (MMCs) 是使用强烈的熔体剪切合成的。研究了增强颗粒分布对铸造 A356/10 vol.% SiCp 复合材料流动性的影响。测量代表复合熔体流动性的螺旋长度，并分析液体流动和凝固行为。复合材料流动性的改善归因于通过强烈的熔体剪切处理使增强颗粒均匀分布。从铸造性能的角度来看，在强力剪切的帮助下实现的增强颗粒的均匀分散提高了 A356/10 vol.% SiCp 铸造复合材料的机械性能。提高复合材料的强度、刚度和耐磨性归因于整体均匀性，