Journal ArticleDOI
A rationale for the strong dependence of mechanical twinning on grain size
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TLDR
In this paper, it was shown that the yield stress is a function of the grain size in much the same way as it is for dislocation glide, and that the sensitivity to grain size is typically greater.About:
This article is published in Scripta Materialia.The article was published on 2008-10-01. It has received 282 citations till now. The article focuses on the topics: Grain boundary strengthening & Crystal twinning.read more
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Derivation and Variation in Composition-Dependent Stacking Fault Energy Maps Based on Subregular Solution Model in High-Manganese Steels
TL;DR: In this article, a subregular solution thermodynamic model was used to calculate the stacking fault energies (SFEs) of high-manganese steels with carbon contents of 0 to 1.2
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Review on superior strength and enhanced ductility of metallic nanomaterials
TL;DR: In this article, the authors present an overview of experimental data and theoretical concepts addressing the unique combination of superior strength and enhanced ductility of metallic nanomaterials, and consider the basic approaches and methods for simultaneously optimizing their strength and ductility, employing principal deformation mechanisms, crystallographic texture, chemical composition as well as second-phase nano-precipitates, carbon nanotubes and graphene.
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Deformation twinning in AZ31: Influence on strain hardening and texture evolution
Marko Knezevic,Amanda Levinson,Ryan Harris,Raja K. Mishra,Roger D. Doherty,Surya R. Kalidindi +5 more
TL;DR: In this paper, the authors investigated the effects of deformation twinning on various aspects of plastic deformation, including the anisotropic strain-hardening rates, the tension/compression yield asymmetry, and the evolution of crystallographic texture.
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Statistical analyses of deformation twinning in magnesium
TL;DR: This paper conducted a statistical analysis on large data sets generated by electron backscattering diffraction (EBSD) to extract quantitative and meaningful relationships between material microstructure and deformation twinning in magnesium.
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Hall-Petch relationship in Mg alloys: A review
TL;DR: In this paper, a review and comments of the past work on the factors influencing k in Mg alloys are presented, and the reason for texture effect on k is analyzed based on the mechanism of Hall-Petch relationship.
References
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Journal ArticleDOI
The onset of twinning in metals: a constitutive description
TL;DR: In this article, a constitutive expression for the twinning stress in BCC metals is developed using dislocation emission from a source and the formation of pile-ups, as rate-controlling mechanism.
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Influence of grain size on the compressive deformation of wrought Mg-3Al-1Zn
TL;DR: The influence of the grain size on the flow stress of extruded Mg-3Al-1Zn tested in compression is examined in this paper, where samples with grain sizes varying between 3 and 23 μm were prepared by altering the extrusion conditions.
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Effect of deformation temperature on Hall–Petch relationship registered for polycrystalline magnesium
N. Ono,Roman Nowak,S. Miura +2 more
TL;DR: In this paper, temperature dependence of the frictional stress derived from the Hall-Petch relation for pure magnesium polycrystals was compared with the critical resolved shear stress for single crystals with orientation preferable for basal or non-basal slip systems.
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Grain-size dependence of the flow stress of Cu from millimeters to nanometers
TL;DR: In this paper, the authors evaluated the effect of grain size from millimeters to nanometers on the flow stress of Cu and identified three grain-size regimes: regime I, d>∼10−6 m; regime II, d ≈10−8 to 10−6m; and regime III, d<∼ 10−8 m.