Departmental Papers (MSE)

Document Type

Journal Article

Date of this Version

8-1-1994

Publication Source

Physical Review Letters

Volume

73

Issue

5

Start Page

684

Last Page

687

DOI

10.1103/PhysRevLett.73.684

Abstract

We propose a new model for the brittle-to-ductile transition based on the Kosterlitz-Thouless concept of dislocation screening. In this model, thermal fluctuations assisted by the applied stress drive the spontaneous generation of dislocations and the instability occurs well below the melting temperature. In the limit of zero stress, our model reduces to the Kosterlitz-Thouless theory of the melting transition, and, in the opposite limit of zero temperature, we obtain the Rice-Thomson result for the brittle-to-ductile transition.

Copyright/Permission Statement

©1994 American Physical Society. All rights reserved.

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Date Posted: 25 May 2016

This document has been peer reviewed.