The kinetics of Cottrell atmosphere formation around dislocations is studied numerically. The spirit of the calculation presented here follows closely that presented by Bullough and Newman, although our conclusions about strain aging are different. We have calculated solute distributions for a number of times using the standard dislocation‐solute atom interaction potentials, − A/r and − A cos(θ)/r, for screw and edge dislocations, respectively. It is shown that for suitably strong dislocation‐solute binding and appropriate dislocation densities, a Harper‐type strain aging can be predicted on the basis of stress‐assisted‐diffusion theory without ascribing any special properties to the dislocation core regions. The place of the Harper law and the Bullough and Newman calculations in the over‐all picture of strain aging is discussed.
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November 1967
Research Article|
June 29 2004
Stress‐Assisted Diffusion to Dislocations and its Role in Strain Aging
L. V. Meisel
L. V. Meisel
Watervliet Arsenal, Watervliet, New York
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J. Appl. Phys. 38, 4780–4784 (1967)
Article history
Received:
May 01 1967
Citation
L. V. Meisel; Stress‐Assisted Diffusion to Dislocations and its Role in Strain Aging. J. Appl. Phys. 1 November 1967; 38 (12): 4780–4784. https://doi.org/10.1063/1.1709219
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