Producing Bulk Ultrafine-Grained Materials by Severe Plastic Deformation: Ten Years Later

Ruslan Z. Valiev, Yuri Estrin, Zenji Horita, Terence G. Langdon, Michael J. Zehetbauer, Yuntian Zhu

    Research output: Contribution to journalArticlepeer-review

    381 Citations (Scopus)


    It is now well established that the processing of bulk solids through the application of severe plastic deformation (SPD) leads to exceptional grain refinement to the submicrometer or nanometer level. Extensive research over the last decade has demonstrated that SPD processing also produces unusual phase transformations and leads to the introduction of a range of nanostructural features, including nonequilibrium grain boundaries, deformation twins, dislocation substructures, vacancy agglomerates, and solute segregation and clustering. These many structural changes provide new opportunities for fine tuning the characteristics of SPD metals to attain major improvements in their physical, mechanical, chemical, and functional properties. This review provides a summary of some of these recent developments. Special emphasis is placed on the use of SPD processing in achieving increased electrical conductivity, superconductivity, and thermoelectricity, an improved hydrogen storage capability, materials for use in biomedical applications, and the fabrication of high-strength metal-matrix nanocomposites.

    Original languageEnglish
    Pages (from-to)1216-1226
    Number of pages11
    Issue number4
    Publication statusPublished - Apr 1 2016

    All Science Journal Classification (ASJC) codes

    • General Materials Science
    • General Engineering


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