Enhanced glass forming ability of Fe-based alloys with minor additions

Abstract

Minor Fe and Y of Fe_71.2B₂₄Y_4.8 bulk metallic glass (BMG) are replaced by Ni, Nd, and Ge, respectively, and glass-forming ability (GFA) influenced by these similar element substitutions are studied. Except Ge, Ni and Nd can both improve the critical diameter of base BMG from 2 to 3 mm. Therefore, substitutions with chemical similar elements are more effective on GFA enhancement than those with atom size similar elements.

Keywords

metallic glass / minor addition / glass-forming ability (GFA) / Fe-based alloys

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Acknowledgements

The authors would like to acknowledge the financial support by the Fundamental Research Funds for the Central Universities, China (2009B29814).

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg