科研之友
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摘要
Highly dense bulk samples were fabricated by spark plasma sintering (SPS) through a combined devitrification and consolidation process of partially amorphous AlNiYLaCo gas-atomized powders. The microstructure and mechanical properties were investigated in detail. The microstructure of the consolidated samples is mainly nanocrystalline. Moreover, the sintered sample exhibits a compressive fracture strength of approximately 1058.6 MPa and a 4.8% compressive plastic strain prior to fracture. Our results indicate that bulk nanocrystalline alloy samples can be fabricated via devitrification for amorphous precursors and powder metallurgy.
