Cyclic strain amplitude-dependent fatigue mechanism of gradient nanograined Cu
Sign Up to like & getrecommendations! Published in 2020 at "Acta Materialia"
DOI: 10.1016/j.actamat.2020.06.047
Abstract: Abstract Different grain coarsening behaviors (i.e. abnormal and homogeneous) are prevalently observed in gradient nanograined (GNG) Cu under stress controlled high-cycle and strain controlled low-cycle fatigue tests, respectively. In this paper, to comprehensively understand the… read more here.
Keywords: strain amplitude; mechanism; gradient nanograined; fatigue ... See more keywords
Strengthening mechanism of gradient nanostructured body-centred cubic iron film: From inverse Hall-Petch to classic Hall-Petch
Sign Up to like & getrecommendations! Published in 2018 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2018.06.001
Abstract: Abstract Gradient-nanograined metals with high strength-ductility synergy would be used in applications of advanced coating materials. An in-depth understanding of their strengthening mechanisms plays a key role in the widespread use of gradient-nanograined structure for… read more here.
Keywords: gradient nanograined; gradient; classic hall; hall petch ... See more keywords
Abnormal grain coarsening in cyclically deformed gradient nanograined Cu
Sign Up to like & getrecommendations! Published in 2018 at "Scripta Materialia"
DOI: 10.1016/j.scriptamat.2017.10.019
Abstract: Abstract Microstructural evolution of gradient nanograined (GNG) Cu was investigated under strain-controlled cyclic deformation. Mechanically driven abnormal grain coarsening initiated from the ultrafine grained subsurface layer and eventually extended to the nanograined top surface with… read more here.
Keywords: gradient nanograined; grain coarsening; coarsening cyclically; abnormal grain ... See more keywords
Higher Damping Capacities in Gradient Nanograined Metals.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.1c03600
Abstract: The capability of damping mechanical energy in polycrystalline metals depends on the activities of defects such as dislocation and grain boundary (GB). However, operating defects has the opposite effect on strength and damping capacity. In… read more here.
Keywords: gradient; damping capacities; capacities gradient; nanograined metals ... See more keywords
The Strongest Size in Gradient Nanograined Metals.
Sign Up to like & getrecommendations! Published in 2020 at "Nano letters"
DOI: 10.1021/acs.nanolett.9b05202
Abstract: Conventional polycrystalline metals become stronger with decreasing grain size, yet softening starts to take over at nanometer regime, giving rise to the strongest size at which the predominate strengthening mechanism switches to softening. We show… read more here.
Keywords: size gradient; size; nanograined metals; gradient nanograined ... See more keywords
Deformation Twinning Induced High Tensile Ductility of a Gradient Nanograined Cu-Based Alloy
Sign Up to like & getrecommendations! Published in 2021 at "Nanomaterials"
DOI: 10.3390/nano11092451
Abstract: We investigated the tensile properties of gradient nanograined Cu and CuAl samples prepared by plastic deformation. Tensile tests showed that the gradient nanograined Cu-4.5Al sample exhibits a uniform elongation of ~22% without any cracks, while… read more here.
Keywords: high tensile; tensile ductility; deformation; tensile ... See more keywords