Design of Graded Materials by Particle Reinforcement During Accumulative Roll Bonding

Authors

  • Christian W. Schmidt,

    Corresponding author
    1. Department Materials Science and Engineering, Institute I: General Materials Properties, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, 91058 Erlangen, Germany
    • Department Materials Science and Engineering, Institute I: General Materials Properties, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, 91058 Erlangen, Germany.

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  • Mathis Ruppert,

    1. Department Materials Science and Engineering, Institute I: General Materials Properties, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, 91058 Erlangen, Germany
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  • Heinz Werner Höppel,

    1. Department Materials Science and Engineering, Institute I: General Materials Properties, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, 91058 Erlangen, Germany
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  • Frank Nachtrab,

    1. Fraunhofer Development Center X-Ray Technology (EZRT), Dr.-Mack-Strasse 81, 90762 Fürth, Germany
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  • Anja Dietrich,

    1. Fraunhofer Development Center X-Ray Technology (EZRT), Dr.-Mack-Strasse 81, 90762 Fürth, Germany
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  • Randolf Hanke,

    1. Fraunhofer Development Center X-Ray Technology (EZRT), Dr.-Mack-Strasse 81, 90762 Fürth, Germany
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  • Mathias Göken

    1. Department Materials Science and Engineering, Institute I: General Materials Properties, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, 91058 Erlangen, Germany
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  • The authors gratefully acknowledge the funding of the German Research Council (DFG), which, within the framework of its “Excellence Initiative” supports the Cluster of Excellence “Engineering of Advanced Materials” at the University of Erlangen-Nürnberg. Supporting Information is available from the Wiley Online Library or from the author.

Abstract

Graded distributions of copper particles in ultrafine-grained aluminium sheets are produced by accumulative roll bonding and particle reinforcement. The metallic copper particles are sprayed on the sheet surfaces under variation of spray distance and/or relative velocity of the spray gun to the sheet. Therewith, the particle content could be varied by a factor of three. After solutionizing, the successful gradation is clearly proven by tensile tests showing a steady and monotonous gradient along the rolling direction. By a systematic analysis of the spraying process, the particle content profile is calculated. Accuracy of the calculation is confirmed by electrical resistivity measurements. The presented method enables the production of tailored sheets by graded particle reinforcement. The graded sheets are also used for basic investigation of materials properties along graded compositions.

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