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Advanced Computing in Industrial Mathematics pp 145–157Cite as

Modelling of Light Mg and Al Based Alloys as “in situ” Composites

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Part of the book series: Studies in Computational Intelligence ((SCI,volume 728))

Abstract

The present paper is aimed to further elucidate the microstructure properties relationship of light alloys containing additional hard particles. The materials studded are magnesium alloys from the system AZ (Mg–Al–Mn–Zn) and mechanically alloyed aluminum reinforced with carbide and oxide particles. Strengthening and hardening phenomena in Metal Matrix Multiphase heterogeneous Materials (MMMM) are considered in this study from the view point of mechanics of nano- and micro-composites. A semi-analytical approach is adopted taking into account the manufacturing processing and microstructure features. Multilevel homogenization procedure is performed, accounting for size effects. In the model applied the metal matrix is considered as an elastic–plastic micropolar media and the hard phases (precipitations Mg17Al12, TiC, Al4C3, Al2O3) are treated as conventional elastic Cauchy materials. Experimentally observed dependence of the characteristic matrix length on the volume fraction of the hardening phases is modeled and numerically simulated in the case of ball-milled Al alloyed with Al4C3 and Al2O3. For AZ alloys the impact of intermetallic phase Mg17Al12 is discussed in the frame of presented composite model and the strengthening effect of the addition of small amount of TiC is estimated.

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Acknowledgements

This research is carrying out in the frame of KMM-VIN—European Virtual Institute on Knowledge-based Multifunctional Materials AISBL. Partial support from BG FSI through the project H 07/37/2016 is gratefully acknowledged.

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Authors and Affiliations

  1. Institute of Mechanics, Bulgarian Academy of Sciences, Sofia, Bulgaria

    Ludmila Parashkevova

  2. Foundry and Steelmaking Department, TECNALIA, Donostia - San Sebastián, Spain

    Pedro Egizabal

Authors
  1. Ludmila Parashkevova
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  2. Pedro Egizabal
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Corresponding author

Correspondence to Ludmila Parashkevova .

Editor information

Editors and Affiliations

  1. Institute of Information and Communication Technologies, Bulgarian Academy of Science, Sofia, Bulgaria

    Krassimir Georgiev

  2. Faculty of Applied Mathematics and Informatics, Technical University of Sofia, Sofia, Bulgaria

    Michail Todorov

  3. Institute of Information and Communication Technologies, Bulgarian Academy of Sciences, Sofia, Bulgaria

    Ivan Georgiev

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Parashkevova, L., Egizabal, P. (2018). Modelling of Light Mg and Al Based Alloys as “in situ” Composites. In: Georgiev, K., Todorov, M., Georgiev, I. (eds) Advanced Computing in Industrial Mathematics. Studies in Computational Intelligence, vol 728. Springer, Cham. https://doi.org/10.1007/978-3-319-65530-7_14

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  • DOI: https://doi.org/10.1007/978-3-319-65530-7_14

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-65529-1

  • Online ISBN: 978-3-319-65530-7

  • eBook Packages: EngineeringEngineering (R0)

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