Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Relations between the Thermal and Mechanical Properties of Cast Zr-TM-Al (TM: Cu, Ni, or Co) Bulk Glassy Alloys
Yoshihiko YokoyamaToru YamasakiPeter K. LiawAkihisa Inoue
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2007 Volume 48 Issue 7 Pages 1846-1849


Ternary Zr-TM-Al (TM: Cu, Ni or Co) bulk glassy alloys were fabricated to clarify the relations between the thermal and mechanical features. These alloy systems show the distinct ternary eutectic point, and a bulk glassy phase also forms around the ternary eutectic composition. We determine the 12 standard Zr-TM-Al bulk glassy alloys in this study. In the twelve standard Zr-TM-Al bulk glassy alloys, the glass-transition temperature has large positive correlation coefficient with Young’s modulus and Vickers hardness. The melting temperature has large negative correlation coefficient with Charpy impact value, fracture strain and volume change due to structural relaxation. Furthermore, in order to recognize the origin of ductility, Poisson’s ratio (metallic bond nature) and volume change (free volume) were also examined.

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© 2007 The Japan Institute of Metals and Materials
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