A novel method named lost foam casting (LFC) process combined with layered extrusion forming (LEF) technology was proposed to prepare the Al₂O₃/AZ91D Mg interpenetrating composites, and the microstructural characteristics, thermal expansion performance and wear resistance of the Al₂O₃/AZ91D interpenetrating composites were investigated in this work. The results indicated that a superior bonding between AZ91D magnesium alloy and Al₂O₃ porous ceramic was achieved. The Al₂O₃/AZ91D interpenetrating composites exhibited obvious improvements in the thermal expansion performance and the wear resistance compared to the AZ91D alloy. Therefore, the LFC process combined with the LEF technology provides a promising method for the preparation of the Al₂O₃/AZ91D interpenetrating composites.

Graphic Abstract

中文翻译：

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消失模铸造结合层状挤压成形制备Al2O3/AZ91D镁互穿复合材料

提出了一种名为消失模铸造（LFC）工艺结合分层挤压成型（LEF）技术制备Al ₂ O ₃ /AZ91D Mg互穿复合材料的新方法，并研究了Al ₂的显微结构特征、热膨胀性能和耐磨性。在这项工作中研究了O ₃ /AZ91D 互穿复合材料。结果表明AZ91D镁合金与Al ₂ O ₃多孔陶瓷之间实现了优异的结合。铝₂ O ₃/AZ91D 互穿复合材料与 AZ91D 合金相比，在热膨胀性能和耐磨性方面表现出明显的改善。因此，LFC工艺结合LEF技术为制备Al ₂ O ₃ /AZ91D互穿复合材料提供了一种很有前景的方法。

图形摘要