Characterization of particle pinning potential

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    Abstract

    Five methods for characterizing second-phase particle pinning potential in twin roll cast AA 3105 have been evaluated experimentally and analytically. A stereological expression, SV/4, has been demonstrated as a robust means for characterizing the degree of particle pinning in real material systems with neither the assumption of particle shape nor size distribution and without the experimental difficulty of unfolding the size distribution.

    Original languageEnglish
    Pages (from-to)4091-4099
    Number of pages9
    JournalActa Materialia
    Volume54
    Issue number15
    DOIs
    StatePublished - Sep 2006

    Funding

    The authors gratefully acknowledge funding of this research by the Department of Energy, award number DE-FC36-021D14401. The electron microscopy studies were sponsored by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies, as part of the High Temperature Materials Laboratory User Program, Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the US Department of Energy under contract number DE-AC05-00OR22725. The authors especially appreciate the critical reviews and suggestions by Professors R.T. DeHoff and R.D. Doherty and extensive assistance of Mr. Larry Walker of the HTML Materials Analysis Group with the FEG–SEM operation.

    Keywords

    • Aluminum alloy
    • Particle size distribution
    • Stereology
    • Zener pinning

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