Journal ArticleDOI
A crystal plasticity model for hexagonal close packed (HCP) crystals including twinning and de-twinning mechanisms
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TLDR
In this paper, a physics-based twinning and de-twinning (TDT) model is proposed for polycrystalline plastic deformation, which is characterized by four deformation mechanisms corresponding to twin nucleation, twin growth, twin shrinkage, and retwinning.About:
This article is published in International Journal of Plasticity.The article was published on 2013-10-01. It has received 362 citations till now. The article focuses on the topics: Crystal twinning & Deformation mechanism.read more
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Structural evolutions of metallic materials processed by severe plastic deformation
TL;DR: In this paper, a comprehensive review on important micro-structural evolutions and major microstructural features induced by SPD processing in single-phase metallic materials with face-centered cubic structures, body-centered cylindrical structures, and hexagonal close-packed structures, as well as in multi-phase alloys is provided.
Journal ArticleDOI
Twin-twin interactions in magnesium
TL;DR: In this article, the authors studied twin-twin interactions by combining experimental observations and theoretical analysis, and classified twin-two interactions into Type I and Type II for two twin variants sharing the same zone axis and two twins with different zone axes, respectively.
Journal ArticleDOI
Visco-plastic modeling of mechanical responses and texture evolution in extruded AZ31 magnesium alloy for various loading conditions
TL;DR: In this paper, the Visco-Plastic Self Consistent (VPSC) model was used to simulate a vast number of mechanical responses and crystallographic characteristics including stress-strain curves in tension, compression in three directions, and free-end torsion, texture evolution at different strains, lateral strains of compression samples, twin volume fraction, and axial strain during the torsions experiment.
Journal ArticleDOI
Improving ductility of a Mg alloy via non-basal slip induced by Ca addition
Gaoming Zhu,Leyun Wang,Hao Zhou,Jinhui Wang,Yao Shen,Peng Tu,Hong Zhu,Wei Liu,Peipeng Jin,Xiaoqin Zeng,Xiaoqin Zeng +10 more
TL;DR: In this article, tensile testing of an extruded Mg−0.47 wt% Ca alloy was conducted inside a scanning electron microscope, and electron backscattered diffraction-based slip trace analysis was performed to study in-grain slip activities at 1, 2, 4, 8, and 16% tensile strain.
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Reactions of lattice dislocations with grain boundaries in Mg: Implications on the micro scale from atomic-scale calculations
TL;DR: In this article, the authors explore the relationship between dislocation and grain boundary dislocations (GBDs) interactions and show that the outcome of the reactions can be correlated with certain characteristics of the GBDs and classified into three types: (1) for STGBs with low misorientation angles, { 1 ¯ 0 1 2 } twins nucleate via the dissociation of grain boundaries.
References
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Journal ArticleDOI
The Determination of the Elastic Field of an Ellipsoidal Inclusion, and Related Problems
TL;DR: In this paper, it is shown that to answer several questions of physical or engineering interest, it is necessary to know only the relatively simple elastic field inside the ellipsoid.
Book
Single Crystal Elastic Constants and Calculated Aggregate Properties. A Handbook
Gene Simmons,Herbert F. Wang +1 more
TL;DR: In this paper, the authors present data on the elastic properties of single crystals collected from the literature through mid-1970 and the elastic property of isotropic aggregates which are calculated according to the schemes of Voigt and Reuss for all materials, and Hashin and Shtrikman for materials with cubic symmetry.
Journal ArticleDOI
A self-consistent anisotropic approach for the simulation of plastic deformation and texture development of polycrystals : application to zirconium alloys
TL;DR: In this paper, a visco-plastic self-consistent (VPSC) anisotropic approach for modeling the plastic deformation of polycrystals, together with a thorough discussion of the assumptions involved and the range of application of such approach is presented.
Journal ArticleDOI
Overview no. 42 Texture development and strain hardening in rate dependent polycrystals
R.J. Asaro,Alan Needleman +1 more
TL;DR: In this article, a rate dependent constitutive model is developed for polycrystals subjected to arbitrarily large strains, and the model is used to predict deformation textures and large-strain strain hardening behavior following various stressstrain histories for single phase f.c. aggregates that deform by crystallographic slip.
Related Papers (5)
A self-consistent anisotropic approach for the simulation of plastic deformation and texture development of polycrystals : application to zirconium alloys
Plastic anisotropy and the role of non-basal slip in magnesium alloy AZ31B
Sean R. Agnew,Ozgur Duygulu +1 more