Results 31 to 40 of about 15,379 (289)
Materials Research Letters, 2019 This paper reports on a heterogeneous-structured β-Ti alloy with an exceptional combination of high strength and ductility, resulting from optimized hierarchical features in a lamellar microstructure.
Sumin Shin +3 more
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Gradients of Strain to Increase Strength and Ductility of Magnesium Alloys
Metals, 2019 A strain gradient was produced in an AZ31B magnesium alloy through a plastic deformation of pure torsion at a torsional speed of π/2 per second. Compared with the base material and with the alloy processed by conventional severe plastic deformation,
Yao Liu, Songlin Cai
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Plasticity of crystals and interfaces: From discrete dislocations to size-dependent continuum theory [PDF]
Theoretical and Applied Mechanics, 2010 In this communication, we summarize the current advances in size-dependent continuum plasticity of crystals, specifically, the rate-independent (quasistatic) formulation, on the basis of dislocation mechanics.
Mesarovic Sinisa Đ.
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Length-scale effect due to periodic variation of geometrically necessary dislocation densities
International Journal of Plasticity, 2013 Abstract Strain gradient plasticity theories have been successful in predicting qualitative aspects of the length scale effect, most notably the increase in yield strength and hardness as the size of the deforming volume decreases. However new experimental methodologies enabled by recent developments of high spatial resolution diffraction methods in ...
Oeztop, Muin S. +2 more
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Deformation compatibility in a single crystalline Ni superalloy [PDF]
, 2015 Deformation in materials is often complex and requires rigorous understanding to predict engineering component lifetime. Experimental understanding of deformation requires utilization of advanced characterization techniques, such as high spatial ...
Britton, T, Dunne, F, Jiang, J, Zhang, T
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Journal of Advanced Research in Applied Mechanics, 2023 Surface roughness is a well-known factor in effecting to the hardness value in low indentation depth. The rougher surface induces a greater hardness value.
Weng Mei Kok +3 more
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Nanomaterials, 2021 We report on cooperative grain rotation accompanied by a strong Bauschinger effect in nanocrystalline (nc) palladium thin film. A thin film of nc Pd was subjected to cyclic loading–unloading using in situ TEM nanomechanics, and the evolving ...
Ankush Kashiwar +2 more
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Study of size effects in thin films by means of a crystal plasticity theory based on DiFT [PDF]
, 2007 In a recent publication, we derived the mesoscale continuum theory of plasticity for multiple-slip systems of parallel edge dislocations, motivated by the statistical-based nonlocal continuum crystal plasticity theory for single-glide due to Yefimov et ...
Limkumnerd, Surachate +1 more
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Materials & DesignIn the net-zero era, the burgeoning demands within engineering applications require materials that are not only lighter and stronger but also ductile.
Yi-Hsuan Sun +6 more
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An observation on the experimental measurement of dislocation density
, 2013 The common practice of ignoring the elastic strain gradient in measurements of geometrically necessary dislocation (GND) density is critically examined. It is concluded that the practice may result in substantial errors.
Acharya, Amit, Knops, Robin J.
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