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Showing 1–11 of 11 results
Advanced filters: Author: Easo P. George Clear advanced filters

  • Single-phase high-entropy alloys, such as CrMnFeCoNi, display excellent ductility and fracture toughness. Here, the authors use in situ mechanical loading in an aberration-corrected transmission electron microscope to probe the atomistic to micro-scale mechanisms underlying these properties.

    • ZiJiao Zhang
    • M. M. Mao
    • Robert O. Ritchie
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-6

  • Non-alcoholic fatty liver disease (NAFLD) is a potentially serious liver disease with a substantial burden worldwide. In this Consensus Statement, a global multidisciplinary group of experts develop consensus statements and recommendations addressing a broad range of topics on NAFLD to raise awareness and spur action.

    • Jeffrey V. Lazarus
    • Henry E. Mark
    • Ming-Hua Zheng
    Reviews
    Nature Reviews Gastroenterology & Hepatology
    Volume: 19, P: 60-78

  • High-entropy alloys derive their properties from being multi-element systems that can crystallize as a single phase. Here, the authors examine a medium-entropy alloy, CrCoNi, which displays strength-toughness properties exceeding those of high-entropy alloys and resulting from steady strain hardening.

    • Bernd Gludovatz
    • Anton Hohenwarter
    • Robert O. Ritchie
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-8

  • Materials that show twinning-induced plasticity can offer unusual combinations of strength and ductility. Here, authors study deformation twinning and dislocation behaviour in a medium-entropy alloy CrCoNi and find a three-dimensional (3D) hierarchical twin network that forms from the activation of three twinning systems.

    • Zijiao Zhang
    • Hongwei Sheng
    • Robert O. Ritchie
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-8

  • Poor ductility is a major drawback of otherwise promising refractory high-entropy alloys (RHEAs) for ultrahigh temperature applications. Here, the authors show how ductility can be enhanced by adding HCP elements to BCC RHEAs, which is a relatively simple way to optimize mechanical properties.

    • Tomohito Tsuru
    • Shu Han
    • Haruyuki Inui
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-10

  • Soft magnetic materials can be magnetized and demagnetized by weak magnetic fields, but lack the strength, toughness and malleability needed for many applications. An alloy that solves this problem has now been developed.

    • Easo P. George
    News & Views
    Nature
    Volume: 608, P: 270-271

  • Combined analysis of proton-proton collision data from the Large Hadron Collider at CERN by the CMS and LHCb collaborations leads to the observation of the extremely rare decay of the strange B meson into muons; the result is compatible with the standard model of particle physics, and does not show any signs of new physics, such as supersymmetry.

    • V. Khachatryan
    • A.M. Sirunyan
    • E. Pesen
    ResearchOpen Access
    Nature
    Volume: 522, P: 68-72

  • Research into engineering alloys is often driven by the need to simultaneously improve strength and toughness. Here, an equimolar CrCoNi medium-entropy alloy achieves an almost three times increase in yield strength without sacrificing toughness, attributed to a partially recrystallized microstructure.

    • Connor E. Slone
    • Veronika Mazánová
    • Robert O. Ritchie
    ResearchOpen Access
    Communications Materials
    Volume: 5, P: 1-10

  • High-entropy alloys have greatly expanded the compositional space for alloy design. In this Review, the authors discuss model high-entropy alloys with interesting properties, the physical mechanisms responsible for their behaviour and fruitful ways to probe and discover new materials in the vast compositional space that remains to be explored.

    • Easo P. George
    • Dierk Raabe
    • Robert O. Ritchie
    Reviews
    Nature Reviews Materials
    Volume: 4, P: 515-534