Journal ArticleDOI
Plastic anisotropy in b.c.c. transition metals
M. S. Duesbery,V. Vítek +1 more
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TLDR
In this paper, the anisotropy of plasticity in b.c. metals is decomposed into two parts: a sensitivity of the Peierls stress to non-glide elements of the applied stress, and small edge fractional dislocation components in the screw dislocation core.About:
This article is published in Acta Materialia.The article was published on 1998-03-02. It has received 442 citations till now. The article focuses on the topics: Peierls stress & Slip (materials science).read more
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Overview of constitutive laws, kinematics, homogenization and multiscale methods in crystal plasticity finite-element modeling: Theory, experiments, applications
TL;DR: In this paper, a review of continuum-based variational formulations for describing the elastic-plastic deformation of anisotropic heterogeneous crystalline matter is presented and compared with experiments.
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Effects of nanocrystalline and ultrafine grain sizes on constitutive behavior and shear bands in iron
D. Jia,K.T. Ramesh,Evan Ma +2 more
TL;DR: In this paper, the authors studied the mechanical behavior of consolidated iron with average grain sizes from tens of nanometers to tens of microns under uniaxial compression over a wide range of strain rates.
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Self-interstitial atom defects in bcc transition metals: Group-specific trends
TL;DR: In this article, the authors present an investigation of systematic trends for the self-interstitial atom (SIA) defect behavior in body-centered cubic (bcc) transition metals using density-functional calculations.
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Size-dependent plasticity in an Nb25Mo25Ta25W25 refractory high-entropy alloy
TL;DR: In this paper, an Nb25Mo25Ta25W25 refractory high-entropy alloys (HEA) was synthesized by arc melting and well homogenized at 1800°C.
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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.
References
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Journal ArticleDOI
A simple empirical N-body potential for transition metals
M. W. Finnis,J. E. Sinclair +1 more
TL;DR: In this article, a simple form of multi-ion interaction has been constructed for the purpose of atomistic simulation of transition metals, which can account for experimental vacancy-formation energies and does not require an externally applied pressure to balance the Cauchy pressure.
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The size of a dislocation
TL;DR: In this paper, the size of a dislocation and critical shear stress for its motion were calculated for a single dislocation with respect to the size and motion of the dislocation.
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Dislocations in a simple cubic lattice
TL;DR: In this paper, the authors calculate the activation energy of dislocations in a perfect lattice and show that the energy of a dislocation can be estimated by an approximate method due to Peierls.
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Intrinsic stacking faults in body-centred cubic crystals
TL;DR: In this article, a study of the possibility of the existence of stacking faults in b.c. crystals on {110} and {112} planes has been performed, representing the lattice by a central force interaction between atoms.