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Published December 10, 2012 | Erratum + Published
Journal Article Open

Effect of microalloying on the toughness of metallic glasses


The effect of microalloying on the toughness of Cu-Ti-based metallic glasses is explored. Minor additions of Si and Sn in glass former Cu_(47)Ti_(34)Zr_(11)Ni_8 known to improve glass-forming ability are found here to sharply decrease toughness. The drop in toughness is associated with a small but meaningful increase in shear modulus, glass-transition temperature, yield strength, and a decrease in Poisson's ratio, implying a negative correlation between toughness and shear flow barrier. The strong influence of minor additions on the glass properties could be a useful tool for simultaneously tuning both the glass-forming ability and toughness of metallic glasses.

Additional Information

© 2012 American Institute of Physics. Received 13 August 2012; accepted 20 November 2012; published online 12 December 2012. Authors would like to acknowledge the Caltech MURF program for undergraduate support.

Attached Files

Published - ApplPhysLett_101_241913.pdf

Erratum - ApplPhysLett_102_099902.pdf


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August 19, 2023
October 20, 2023