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期刊名称: MRS Bulletin
Volume:41    Issue:4        Page:292-297
ISSN:0883-7694

Strengthening and plasticity in nanotwinned metals期刊论文

作者: Sansoz F Lu K Zhu T Misra A
DOI:10.1557/mrs.2016.60

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页码: 292-297
被引频次: 29
出版者: CAMBRIDGE UNIV PRESS,Cambridge University Press
期刊名称: MRS Bulletin
ISSN: 0883-7694
卷期: Volume:41    Issue:4
语言: English
摘要: Nanotwins require little energy to form in metals, but their impact on strength and ductility is dramatic. New mechanisms of strengthening, strain hardening, ductility, and strainrate sensitivity have been observed in nanowires, films, and bulk materials containing nanoscale twins as the twin-boundary spacing decreases. These mechanisms can act in concert to produce interface-dominated nanomaterials with extreme tensile strength and plastic deformation without breaking. This article reviews recent theoretical and experimental understanding of the physical mechanisms of plasticity in nanotwin-strengthened metals, with a particular focus on the fundamental roles of coherent, incoherent, and defective twin boundaries in plastic deformation of bulk and small-scale cubic systems, and discusses new experimental methods for controlling these deformation mechanisms in nanotwinned metals and alloys.
相关主题: nanostructure, ductility, dislocations, grain boundaries, strength, ATOMIC-SCALE OBSERVATION, PHYSICS, APPLIED, STEEL, MATERIALS SCIENCE, MULTIDISCIPLINARY, GROWTH TWINS, COPPER, TWIN BOUNDARIES, CENTERED-CUBIC METALS, DEFORMATION MECHANISMS, GOLD NANOWIRES, MAXIMUM STRENGTH,

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