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Refractory Mo–Si-based glassy alloy designed for ultrahigh strength and thermal stability

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Abstract

Mechanically alloyed Mo44Si26Ta5Zr5Fe3Co12Y5 multicomponent glassy alloy exhibits an exceptionally high glass transition temperature of 1202 K and a crystallization temperature of 1324 K, as well as an ultrahigh hardness of 18 GPa. This example is used to demonstrate metallic glasses that possess extraordinary thermal stability and ultrahigh strength and, at the same time, a wide supercooled liquid region (122 K) that is needed for processing into bulk forms through powder metallurgy routes.

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Authors and Affiliations

  1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, People’s Republic of China

    X. Q. Zhang, W. Wang & J. Xu

  2. Department of Materials Science and Engineering, The Johns Hopkins University, Baltimore, Maryland, 21218, USA

    E. Ma

Authors
  1. X. Q. Zhang
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  2. W. Wang
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  3. E. Ma
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  4. J. Xu
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Correspondence to J. Xu.

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Zhang, X.Q., Wang, W., Ma, E. et al. Refractory Mo–Si-based glassy alloy designed for ultrahigh strength and thermal stability. Journal of Materials Research 20, 2910–2913 (2005). https://doi.org/10.1557/JMR.2005.0372

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  • DOI: https://doi.org/10.1557/JMR.2005.0372

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