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Handbook of Mechanics of Materials pp 1–14Cite as

Indentation Behavior of Metallic Glass Via Molecular Dynamics Simulation

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Abstract

Metallic glasses, also known as glassy metals, exhibit unique mechanical properties in terms of their strength and ductility due to their noncrystalline microstructures. By performing molecular dynamics simulations, thin-film metallic glasses can be prepared by simulated sputter deposition processes. The deposition simulations were conducted with a tight-binding interatomic potential, and argon working gas was modeled by the pair-wise Moliere potential. The atomic structures of the glasses are verified by the radial distribution functions. After deposition simulation and suitable equilibration, the deposited amorphous films were simulated for their indentation properties by a right-angle conical indenter tip at selected temperatures. The hardness and Young’s modulus of the glasses show strong temperature dependence. The calculated pileup index of the films may be used to indicate the glass transition temperature.

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Acknowledgements

The authors are grateful for research grants from Taiwan Ministry of Science and Technology. This research received funding from the Headquarters of University Advancement at the National Cheng Kung University, which is sponsored by the Ministry of Education, Taiwan, ROC. We are also grateful to the National Center for High-Performance Computing for computer time and facilities.

Author information

Authors and Affiliations

  1. Research and Development Department Yan Men LTD, Tainan, Taiwan

    Chun-Yi Wu

  2. Department of Civil Engineering, National Cheng Kung University, Tainan, Taiwan

    Yun-Che Wang

Authors
  1. Chun-Yi Wu
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  2. Yun-Che Wang
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Corresponding author

Correspondence to Yun-Che Wang .

Editor information

Editors and Affiliations

  1. Materials Science and Strength of Materials, University of Stuttgart Institute for Materials Testing, Stuttgart, Germany

    Siegfried Schmauder

  2. Department of Civil Engineering, National Taiwan University Department of Civil Engineering, Taipei, T´ai-pei, Taiwan

    Chuin-Shan Chen

  3. BEC 254, University of Alabama at Birmingham, Birmingham, Alabama, USA

    Krishan K. Chawla

  4. Fulton School of Engineering, Arizona State University, Tempe, Arizona, USA

    Nikhilesh Chawla

  5. Engineering Mechanics, Zhejiang University Engineering Mechanics, Hangzhou, China

    Weiqiu Chen

  6. Katayanagi Advanced Research Laboratorie, Tokyo University of Technology Katayanagi Advanced Research Laboratorie, Tokyo, Japan

    Yutaka Kagawa

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Wu, CY., Wang, YC. (2018). Indentation Behavior of Metallic Glass Via Molecular Dynamics Simulation. In: Schmauder, S., Chen, CS., Chawla, K., Chawla, N., Chen, W., Kagawa, Y. (eds) Handbook of Mechanics of Materials. Springer, Singapore. https://doi.org/10.1007/978-981-10-6855-3_2-1

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  • DOI: https://doi.org/10.1007/978-981-10-6855-3_2-1

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-6855-3

  • Online ISBN: 978-981-10-6855-3

  • eBook Packages: Springer Reference EngineeringReference Module Computer Science and Engineering

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