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Finite element analysis of microimprinting of bulk metallic glasses in supercooled liquid regime

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Abstract

A finite element analysis (FEA) model to analyze imprint of a bulk metallic glass (BMG) in the temperature range near the glass transition temperature (T g) has been developed. The material model includes both Newtonian and non-Newtonian flow behavior. The results reveal that the topology of the imprinted surface depends strongly on temperatures, but only mildly on surface feature scale. As a result of the flow characteristics of BMG in the temperature range above T g, the lubrication condition has only a slight effect on BMG imprinting.

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Acknowledgements

The authors express sincere appreciation to the DANIDA Fellowship Program for financial support during the course of this work. We are grateful to N. Pryds for experimental assistance; to A. Schrøder Pedersen, M. Eldrup, Erik Johnson for thoughtful comments.

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Authors and Affiliations

  1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China

    M. Cheng & S. H. Zhang

  2. Materials Research Department, Risø National Laboratory, Roskilde, 4000, Denmark

    J. A. Wert

Authors
  1. M. Cheng
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  2. S. H. Zhang
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  3. J. A. Wert
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Correspondence to M. Cheng.

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Cheng, M., Zhang, S.H. & Wert, J.A. Finite element analysis of microimprinting of bulk metallic glasses in supercooled liquid regime. J Mater Sci 42, 5999–6003 (2007). https://doi.org/10.1007/s10853-006-1119-z

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  • DOI: https://doi.org/10.1007/s10853-006-1119-z

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