Abstract
Bulk glass formation of the Co–Cr–Mo–C–B–Er alloy system was investigated in this paper. The Co50Cr15Mo14C15B6 (at.%) alloy could be cast into fully glassy rod with a diameter up to 2 mm. By adding 2 at.% Er to this alloy, the critical diameter for glass formation reached 10 mm. The excellent glass formability of the Er-doped alloy was mainly attributed to its relatively large reduced glass transition temperature of 0.61, near-eutectic composition, and the necessity of redistribution of the Er atoms for precipitation of crystalline Co6Mo6C phase in the undercooled liquid on cooling.
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Men, H., Pang, S.J. & Zhang, T. Effect of Er doping on glass-forming ability of Co50Cr15Mo14C15B6 alloy. Journal of Materials Research 21, 958–961 (2006). https://doi.org/10.1557/jmr.2006.0109
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DOI: https://doi.org/10.1557/jmr.2006.0109