Journal ArticleDOI
XCII. Relations between the elastic moduli and the plastic properties of polycrystalline pure metals
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In this paper, the elastic and plastic properties of pure polycrystalline metals are discussed and a systematic relation between shear modulus, Burgers vector and plastic shear strength of metals possessing the same lattice structure is proposed.Abstract:
Relations between the elastic and plastic properties of pure polycrystalline metals are discussed and a systematic relation between shear modulus, Burgers vector and plastic shear strength of metals possessing the same lattice structure is proposed. In addition reasons are given for believing that in a limited temperature range malleability is related to Poisson's ratio.read more
Citations
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Crystal structures and elastic properties of superhard IrN2 and IrN3 from first principles
TL;DR: In this paper, first principles calculations were performed to investigate the structural, elastic, and electronic properties of IrN2 for various space groups: cubic Fm-3m and Pa-3, hexagonal P3(2)21, tetragonal P4(2)/mnm, orthorhombic Pmmn, Pnnm, and Pnn2, and monoclinic P2(1)/c.
Journal ArticleDOI
Modeling hardness of polycrystalline materials and bulk metallic glasses
TL;DR: In this paper, it was shown that the intrinsic correlation between hardness and elasticity of materials correctly predicts Vickers hardness for a wide variety of crystalline materials as well as bulk metallic glasses (BMGs).
Journal ArticleDOI
Poisson's ratio and modern materials
TL;DR: On the bicentenary of the publication of Poisson's Traité de Mécanique, the continuing relevance of Poissons's ratio in the understanding of the mechanical characteristics of modern materials is reviewed.
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Slip, twinning, and fracture in hexagonal close-packed metals
TL;DR: The role of deformation twinning in fracture of hexagonal close-packed metals is reviewed from a theoretical point of view in this paper, where strength and ductility are correlated with the intrinsic physical and metallurgical variables.
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Density functional theory for calculation of elastic properties of orthorhombic crystals: Application to TiSi2
TL;DR: In this article, a theoretical formalism to calculate the single crystal elastic constants for orthorhombic crystals from first principle calculations is described, and the elastic constants using a full potential linear muffin-tin orbital method using the local density approximation (LDA) and generalized gradient approximation (GGA).
References
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Book
The Hardness of Metals
TL;DR: Hardness measurements with conical and pyramidal indenters as mentioned in this paper have been used to measure the area of contact between solids and the hardness of ideal plastic metals. But they have not yet been applied to the case of spherical indenters.
Book
Structure of Metals
TL;DR: The first serious application of the microscope to the study of metallic structure was made in 1864 by Dr. H. Sorby, of Sheffield, but the lead then given was not followed for nearly a quarter of a century as mentioned in this paper.
Journal ArticleDOI
Multiplication Processes for Slow Moving Dislocations
F. C. Frank,W. T. Read +1 more
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The splitting strength of mica
TL;DR: In this paper, it was shown that the splitting strength of mica is a constant for mica and that mica can be restored by applying the same force to split two mica sheets placed in optical contact as to split a fresh one.
Journal ArticleDOI
Mathematical theory of stationary dislocations
TL;DR: In this paper, the mathematical theory of stationary dislocations is studied in the context of physics, and it is shown that dislocation can be solved in polynomial time.
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