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Stabilizing nanostructures in metals using grain and twin boundary architectures

Nature Reviews Materials

Springer Nature

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      Most cited references 129

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      The Deformation and Ageing of Mild Steel: III Discussion of Results

       E Hall (1951)
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        Nanocrystalline materials

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          Ultrahigh strength and high electrical conductivity in copper.

          Methods used to strengthen metals generally also cause a pronounced decrease in electrical conductivity, so that a tradeoff must be made between conductivity and mechanical strength. We synthesized pure copper samples with a high density of nanoscale growth twins. They showed a tensile strength about 10 times higher than that of conventional coarse-grained copper, while retaining an electrical conductivity comparable to that of pure copper. The ultrahigh strength originates from the effective blockage of dislocation motion by numerous coherent twin boundaries that possess an extremely low electrical resistivity, which is not the case for other types of grain boundaries.
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            Author and article information

            Journal
            Nature Reviews Materials
            Nat. Rev. Mater.
            Springer Nature
            2058-8437
            March 31 2016
            March 31 2016
            : 1
            : 5
            : 16019
            10.1038/natrevmats.2016.19
            © 2016
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