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金属基复合材料的界面反应是影响复合材料综合性能的重要因素之一。通过使用亚正规溶体模型来分析固液体界面反应的热力学研究。这一计算模型是用来揭示基体合金中加入的新合金元素对金属基复合材料界面反应的影响。结合实际研究中碳纤维增强铝镁合金复合材料,向基体合金中增加镁元素分析对Cf/Al-Mg复合材料界面反应的影响,并得出结论:合金中随着镁元素增加,可抑制碳纤维增强复合材料界面处脆性相Al4C3的生成。
The interfacial reaction of metal matrix composites is one of the important factors that affect the comprehensive properties of composites. Thermodynamic study of solid-liquid interfacial reaction was analyzed by using a subnormal plasma model. This calculation model is used to reveal the effect of new alloying elements added to the matrix alloy on the interfacial reaction of metal matrix composites. In combination with the actual research of carbon fiber reinforced Al-Mg alloy composites, the influence of magnesium element analysis on the interfacial reaction of Cf / Al-Mg composites was increased to the matrix alloy. The conclusion was drawn that the increase of Mg in the alloy could restrain the carbon fiber reinforcement Formation of brittle phase Al4C3 at the interface of composites.