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Journal ArticleDOI

A dislocation model for the stress-strain behaviour of polycrystalline α-Fe with special emphasis on the variation of the densities of mobile and immobile dislocations

Y Bergström
- 01 Mar 1970 - 
- Vol. 5, Iss: 4, pp 193-200
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TLDR
In this article, a dislocation model for the stress-strain behavior of polycrystalline α-Fe at around 20°C and beyond the Luder's strain is presented.
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This article is published in Materials Science and Engineering.The article was published on 1970-03-01. It has received 341 citations till now. The article focuses on the topics: Peierls stress & Dislocation creep.

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Journal ArticleDOI

A unified phenomenological description of work hardening and creep based on one-parameter models

Y. Estrin, +1 more
- 01 Jan 1984 - 
TL;DR: In this article, a phenomenological treatment of plastic deformation is proposed which makes it possible to describe in a unified way the plastic behavior of a material both under dynamic loading and in creep.
Journal ArticleDOI

A critical review of experimental results and constitutive descriptions for metals and alloys in hot working

TL;DR: In this paper, a critical review on some experimental results and constitutive descriptions for metals and alloys in hot working, which were reported in international publications in recent years, is presented.
Journal ArticleDOI

Annihilation of dislocations during tensile and cyclic deformation and limits of dislocation densities

TL;DR: In this paper, it was shown that the critical spacings of dislocation pairs that annihilate are ∼.50-500 nm for screw and ∼ 1·6 nm for non-screw dislocations.
Journal ArticleDOI

Prediction of steel flow stresses at high temperatures and strain rates

TL;DR: In this paper, the flow behavior of steels during deformation in the roll gap was simulated by means of single hit compression tests performed in the temperature range 800 °C to 1200 °C.
References
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Journal ArticleDOI

Dislocation Velocities, Dislocation Densities, and Plastic Flow in Lithium Fluoride Crystals

TL;DR: In this paper, the authors measured the velocities of individual dislocations in LiF, covering a range of twelve orders of magnitude in velocity, from 10−7 cm/sec to 105cm/sec.
Journal ArticleDOI

A model for yielding with special reference to the yield-point phenomena of iron and related bcc metals

G.T Hahn
- 01 Aug 1962 - 
TL;DR: In this article, a model for yielding based on dislocation multiplication and velocity characteristics specific to iron and related b.c. metals is derived on the premise that dislocations anchored by segregates or precipitates remain locked.
Journal ArticleDOI

Dislocation dynamics in deformation and recovery

TL;DR: Phenomenological equations between dislocation velocity, effective shear stress, temperature, and pressure are presented in this article, where it is suggested that the term "activation volume" be properly assigned to t...
Journal ArticleDOI

Components of the flow stress of iron

TL;DR: In this article, tensile tests have been made on a pure iron (99.97% pure; interstitial content 0.007 at) covering a total grain size range of 0.025-2 mm and a temperature range of −196 to +400°C.
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