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Enhanced plasticity in a Ti-based bulk metallic glass-forming alloy by in situ formation of a composite microstructure

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Abstract

A bulk metallic glass-forming Ti–Cu–Ni–Sn alloy with in situ formed composite microstructure prepared by both centrifugal and injection casting presents more than 6% plastic strain under compressive stress at room temperature. The in situ formed composite contains dendritic hexagonal-close-packed-Ti solid solution precipitates and a few Ti3Sn, β –(Cu, Sn) grains dispersed in a glassy matrix. The composite microstructure can avoid the development of the highly localized shear bands typical for the room-temperature deformation of monolithic glasses. Instead, highly developed shear bands with evident protuberance are observed, resulting in significant yielding and homogeneous plastic deformation over the entire sample.

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Authors and Affiliations

  1. IFW Dresden, Institut für Metallische Werkstoffe, Postfach 270016, D-01171, Dresden, Germany

    G. He, W. Löser, J. Eckert & L. Schultz

Authors
  1. G. He
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  2. W. Löser
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  3. J. Eckert
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  4. L. Schultz
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Correspondence to G. He.

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He, G., Löser, W., Eckert, J. et al. Enhanced plasticity in a Ti-based bulk metallic glass-forming alloy by in situ formation of a composite microstructure. Journal of Materials Research 17, 3015–3018 (2002). https://doi.org/10.1557/JMR.2002.0439

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  • DOI: https://doi.org/10.1557/JMR.2002.0439

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