The Role of Collinear Interaction in Dislocation-Induced Hardening-Reference-Cited by-同舟云学术

The Role of Collinear Interaction in Dislocation-Induced Hardening

Published:2003-09-26 Issue:5641 Volume:301 Page:1879-1882
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Madec R.¹²³,Devincre B.¹²³,Kubin L.¹²³,Hoc T.¹²³,Rodney D.¹²³

Affiliation:

1. Laboratoire d'Etude des Microstructures, UMR 104 CNRS, CNRS-ONERA, 20 Avenue de la Division Leclerc, BP 72, 92322 Chatillon Cedex, France.

2. Laboratoire Mécanique des Sols, Structures et Matériaux, UMR 8579 CNRS, Ecole Centrale Paris, Grande Voie des Vignes, 92295 Chatenay-Malabry Cedex, France.

3. Génie Physique et Mécanique des Matériaux, UMR 5010 CNRS, ENSPG, Domaine Universitaire, 38402 St. Martin d'Hères Cedex, France.

Abstract

We connected dislocation-based atomic-scale and continuum models of plasticity in crystalline solids through numerical simulations of dislocation intersections in face-centered cubic crystals. The results contradict the traditional assumption that strain hardening is governed by the formation of sessile junctions between dislocations. The interaction between two dislocations with collinear Burgers vectors gliding in intersecting slip planes was found to be by far the strongest of all reactions. Its properties were investigated and discussed using a multiscale approach.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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5. From Dislocation Junctions to Forest Hardening

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