Aluminum-rich bulk metallic glasses

The formation and properties of a class of Al-rich bulk metallic glasses (BMGs) are reported. The Al contents for these alloys can reach up to 40 at.%, which is the highest in known BMGs. The Al-rich BMGs deviate greatly from eutectic composition and show high thermal stability and fragility, and ve...

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Bibliographic Details
Published in:Scripta materialia 2008-11, Vol.59 (10), p.1159-1162
Main Authors: Sun, B.A., Pan, M.X., Zhao, D.Q., Wang, W.H., Xi, X.K., Sandor, M.T., Wu, Y.
Format: Article
Language:English
Subjects:
Alloys
Aluminum
Amorphous materials
Casting
Eutectic composition
Fragility
Glass formation
Metallic glasses
Strength
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Summary:The formation and properties of a class of Al-rich bulk metallic glasses (BMGs) are reported. The Al contents for these alloys can reach up to 40 at.%, which is the highest in known BMGs. The Al-rich BMGs deviate greatly from eutectic composition and show high thermal stability and fragility, and very high mechanical strength. These Al-rich BMGs might have implications for Al-based BMGs in general and for understanding the role of Al in glass formation.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2008.08.003