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Ductility Enhancement in Mg Alloys by Anisotropy Engineering

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Book cover Magnesium Technology 2017

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

A mean-field theory suggests that certain forms of plastic anisotropy hinder ductile damage accumulation. Here, a proof-of-concept is presented in the case of Mg–Al–Zn alloys. Textures produced by severe plastic deformation are compared with the as-received rolling texture in terms of their anisotropy-ductility correlations at ambient temperature. The 3D plastic anisotropy is characterized in each material using compression specimens. The ductility is characterized using tensile bars. A micromechanical model is introduced to rationalize the trends in terms of the anisotropy effect on ductility (AED) index. Here, this index is tuned via texture manipulations at fixed chemical composition and grain size. The main finding suggests that plastic anisotropy can be engineered to aid ductility.

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Acknowledgements

Support from the National Science Foundation under Grant Number CMMI-1563580 is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Texas A&M University, College Station, USA

    S. Basu, E. Dogan, B. Kondori & I. Karaman

  2. Department of Aerospace Engineering, Texas A&M University, College Station, USA

    A. A. Benzerga

Authors
  1. S. Basu
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  2. E. Dogan
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  3. B. Kondori
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  4. I. Karaman
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  5. A. A. Benzerga
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Corresponding author

Correspondence to A. A. Benzerga .

Editor information

Editors and Affiliations

  1. Arizona State University , Tempe, Arizona, USA

    Kiran N. Solanki

  2. Lund University , Lund, Skåne Län, Sweden

    Dmytro Orlov

  3. Structural Materials Unit, National Inst for Materials Sci Structural Materials Unit, Tsukuba, Ibaraki, Japan

    Alok Singh

  4. IND LLC , South Jordan, Utah, USA

    Neale R. Neelameggham

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© 2017 The Minerals, Metals & Materials Society

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Basu, S., Dogan, E., Kondori, B., Karaman, I., Benzerga, A.A. (2017). Ductility Enhancement in Mg Alloys by Anisotropy Engineering. In: Solanki, K., Orlov, D., Singh, A., Neelameggham, N. (eds) Magnesium Technology 2017. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-52392-7_24

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