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HEMM Al-SiO2-X 복합 분말을 Al-Mg 용탕에서 자발 치환반응으로 제조된 Al-Si-X/Al2O3 복합재료의 조직 및 마멸 특성 KCI 등재 SCOPUS
Microstructure Evaluation and Wear Resistance Property of Al-Si-X/Al2O3 Composite by the Displacement Reaction in Al-Mg Alloy Melt using High Energy Mechanical Milled Al-SiO2-X Composite Powder
pp.339-346
High-energy mechanical milling (HEMM) and sintering into Al-Mg alloy melt were employed tofabricate an Al alloy matrix composite reinforced with submicron and micron sized Al2O3 particles. Al-basedmetal matrix composite (MMC) reinforced with submicron and micron sized Al2O3 particles was successfullyfabricated by sintering at 1000oC for 2h into Al-Mg alloy melt, which used high energy mechanical milled Al-SiO2-CuO-ZnO composite powders. Submicron/micron-sized Al2O3 particles and eutectic Si were formed by in situdisplacement reaction between Al, SiO2, CuO, and ZnO during sintering for 2h into Al-Mg alloy melt and werehomogeneously distributed in the Al-Si-(Zn, Cu) matrix. The refined grains and homogeneously distributedsubmicron/micron-sized Al2O3 particles had good interfacial adhesive, which gives good wear resistance withhigher hardness.
