Abstract
Zr-based bulk metallic glass (BMG) composites with in situ formed Y2O3 particle reinforcements were synthesized by proper additions of Y to ultrahigh-oxygen-containing glass-forming alloy precursors. Microstructures, thermal stabilities, and mechanical properties of the composites were investigated. Glass formation was greatly enhanced by Y additions in the alloys and the resultant particles were homogenously distributed in the glassy matrix, allowing for the fabrication of oxide dispersion strengthened BMG composites. The compressive strength and hardness increased by 10% and 20%, respectively, with the introduction of Y2O3 particles. These results are significant for the design and production of Zr-based BMGs and BMG composites with improved properties using commercial high-oxygen content raw materials under industrial conditions.
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Liu, Z., Yang, Y., Li, R. et al. Formation and mechanical properties of Zr-based bulk metallic glass composites with high oxygen levels. Chin. Sci. Bull. 57, 3931–3936 (2012). https://doi.org/10.1007/s11434-012-5293-x
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DOI: https://doi.org/10.1007/s11434-012-5293-x