Journal ArticleDOI
Solid solution softening and solid solution hardening
TLDR
In this article, a mechanism explaining both solid solution softening and solid solution hardening has been developed by examining the motion of a screw dislocation through a combined field of Peierls potential and misfit strain centers.About:
This article is published in Acta Metallurgica.The article was published on 1973-06-01. It has received 204 citations till now. The article focuses on the topics: Solid solution strengthening & Dislocation.read more
Citations
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High entropy alloys: A focused review of mechanical properties and deformation mechanisms
TL;DR: In this article, the authors provide a detailed review of the deformation mechanisms of HEAs with the complex concentrated alloys (CCAs) with the FCC and BCC structures, highlighting both successes and limitations.
Journal ArticleDOI
Some surprising features of the plastic deformation of body-centered cubic metals and alloys
TL;DR: In this article, a review of recent studies of low-temperature deformation behavior is presented, including slip asymmetry, failure of the Schmid law of critical resolved shear stress, anomalous slip in very pure metals and alloys, solution softening, and the ductile-brittle transition.
Journal ArticleDOI
Sheet texture modification in magnesium-based alloys by selective rare earth alloying
Talal Al-Samman,X. Li +1 more
TL;DR: In this paper, the influence of select rare earth elements; Gd, Nd, Ce, La and mischmetal (MM) on the sheet texture modification during warm rolling and annealing of a ZEK100 magnesium alloy, and the resulting formability and anisotropy during subsequent tensile testing at room temperature was examined.
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Role of Solute in the Texture Modification During Hot Deformation of Mg-Rare Earth Alloys
Jason P. Hadorn,Kerstin Hantzsche,Sangbong Yi,Jan Bohlen,Dietmar Letzig,James A. Wollmershauser,Sean R. Agnew +6 more
TL;DR: In this paper, the texture weakening effect of hot-rolled Mg-Y alloys was explored using electron backscattered diffraction (EBSD) analysis of intragranular misorientation axes (IGMA) indicate that the geometrically necessary dislocation (GND) content in dilute, hotrolled alloys contain primarily basal dislocations.
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The effect of hydrogen on the mechanical properties of high purity iron I. Softening and hardening of high purity iron by hydrogen charging during tensile deformation
TL;DR: In this paper, the softening and hardening observed in the high purity specimens are interpreted as the results of hydrogen-dislocation interactions; it is proposed that hydrogen atoms trapped at the core of a screw dislocation increase its mobility and that hydrogen atom hinder the motion of edge dislocations at sufficiently low temperatures.
References
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Journal ArticleDOI
Theory of Mechanical Damping Due to Dislocations
A. Granato,K. Lücke +1 more
TL;DR: In this article, a quantitative theory of damping and modulus changes due to dislocations is developed, and it is found that the model used by Koehler of a pinned dislocation loop oscillating under the influence of an applied stress leads to two kinds of loss, one frequency dependent and the other not.
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Solution hardening by tetragonal dist ortions: Application to irradiation hardening in F.C.C. crystals
TL;DR: In this article, it was pointed out that solution hardening is generally of two types, which are called gradual and rapid, and attributed to tetragonal distortions, and a general statement of a theory was made.
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LXV. On the theory of the low-temperature internal friction peak observed in metals
TL;DR: In this paper, Niblett and Wilks showed that the low-temperature internal friction mechanism in polycrystalline copper is determined by intrinsic properties of dislocations, and that the activation energy of the process should depend on the impurity content of the material and the separation between dislocation nodes.
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Rapid Solution Hardening, Dislocation Mobility, and the Flow Stress of Crystals
TL;DR: In this paper, a theory for impurity-controlled dislocation mobility and the resultant temperature variation of the flow stress of lithium fluoride is derived for tetragonal lattice distortions such as result from the introduction of magnesium into lithium fluoride.
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Iron and its dilute substitutional solid solutions
TL;DR: In this article, the effects of alloying elements on the properties of iron are studied, including lattice parameters, elastic constants, the effect of temperature on strength, solid solution strengthening and softening, work hardening, strain aging, hot working and toughness.