This study examines how spark plasma sintering (SPS) temperature and heating rate (in the presence of zirconium element) affect the densification behavior, microstructure, mechanical properties, and tribological behavior of Fe 75 Si 15 B 5 Zr 5 metallic glass. Sintering took place in the supercooled liquid region of the metallic glass powder. The Archimedes method measured densification behavior. Scanning electron microscopy (SEM) provided detailed microstructural information and allowed qualitative evaluation of fracture toughness. X-ray diffraction handled phase analysis and quantified crystallization in the amorphous phase. Ball-on-disk wear testing evaluated tribological behavior, and Vickers microhardness testing assessed mechanical properties. Results revealed that higher sintering temperature increased both the crystallization degree of the amorphous phase and the densification rate. In contrast, heating rate produced mixed effects on crystallization and densification. The sample sintered at the highest temperature with the lowest heating rate exhibited the best fracture resistance and achieved the highest microhardness value of 1096 HV1. Across all samples, delamination of the tribological oxide layer was determined as the main wear mechanism.

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