Achieving large linear elasticity and high strength in bulk nanocompsite via synergistic effect

S. Hao, L. Cui, F. Guo, Yinong Liu, X. Shi, D. Jiang, D.E. Brown, Y. Ren

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    Elastic strain in bulk metallic materials is usually limited to only a fraction of 1%. Developing bulk metallic materials showing large linear elasticity and high strength has proven to be difficult. Here, based on the synergistic effect between nanowires and orientated martensite NiTi shape memory alloy, we developed an in-situ Nb nanowires-orientated martensitic NiTi matrix composite showing an ultra-large linear elastic strain of 4% and an ultrahigh yield strength of 1.8 GPa. This material also has a high mechanical energy storage efficiency of 96% and a high energy storage density of 36 J/cm3 that is almost one order of larger than that of spring steel. It is demonstrated that the synergistic effect allows the exceptional mechanical properties of nanowires to be harvested at macro scale and the mechanical properties of matrix to be greatly improved, resulting in these superior properties. This study provides new avenues for developing advanced composites with superior properties by using effective synergistic effect between components.
    Original languageEnglish
    Pages (from-to)Article 8892
    JournalScientific Reports
    Volume5
    DOIs
    Publication statusPublished - 2015

    Fingerprint Dive into the research topics of 'Achieving large linear elasticity and high strength in bulk nanocompsite via synergistic effect'. Together they form a unique fingerprint.

    Cite this