DOI: 10.1002/pssb.19690330232. The Influence of Internal Stress Fields on the Velocity of Dislocations

The Influence of Internal Stress Fields on the Velocity of Dislocations

10.1002/pssb.19690330232

Crossref journal-article

Wiley

physica status solidi (b) (311)

Abstract

AbstractThe influence of periodic internal stress fields of various types on the average dislocation velocity is investigated. An Arrhenius type equation is used to describe the dislocation velocity, and the calculations are carried out assuming that the activation volume is a) constant, and b) a function of the stress. It is shown that for almost any type of periodic field the average dislocation velocity can be expressed as a simple function of the ratio α = τ0/τa, where τ0 is the amplitude of the stress field and τa is the applied stress. The average value of the internal stress, or the hardening produced by the internal stress field, is not strictly athermal, although its temperature dependence is small. Both the temperature and stress dependence of the average dislocation velocity is influenced by the presence of internal stresses. However, this effect is small and can be neglected for most practical cases, especially at low temperatures.

Bibliography

Guiu, F. (1969). The Influence of Internal Stress Fields on the Velocity of Dislocations. Physica Status Solidi (b), 33(2), 785â795. Portico.

Authors 1

F. Guiu (first)

References 5 Referenced 23

{'key': 'e_1_2_1_2_2', 'first-page': '204', 'volume': '218', 'author': 'Christian J. W.', 'year': '1964', 'journal-title': 'Proc. Roy. Soc.'} / Proc. Roy. Soc. by Christian J. W. (1964)
10.1063/1.1702890
10.1080/14786436708229981
{'key': 'e_1_2_1_5_2', 'volume-title': 'Battelle Conf. Dislocation Dynamics', 'author': 'Li J. C. M.', 'year': '1968'} / Battelle Conf. Dislocation Dynamics by Li J. C. M. (1968)
F.Guiu to be published in Phil. Mag.

Dates

Type	When
Created	18 years, 1 month ago (July 9, 2007, 7:16 p.m.)
Deposited	1 year, 10 months ago (Sept. 27, 2023, 12:31 p.m.)
Indexed	1 month, 3 weeks ago (June 27, 2025, 8:24 p.m.)
Issued	56 years, 7 months ago (Jan. 1, 1969)
Published	56 years, 7 months ago (Jan. 1, 1969)
Published Online	19 years, 4 months ago (March 31, 2006)
Published Print	56 years, 7 months ago (Jan. 1, 1969)

Funders 0

None

BibTeX

@article{Guiu_1969, title={The Influence of Internal Stress Fields on the Velocity of Dislocations}, volume={33}, ISSN={1521-3951}, url={http://dx.doi.org/10.1002/pssb.19690330232}, DOI={10.1002/pssb.19690330232}, number={2}, journal={physica status solidi (b)}, publisher={Wiley}, author={Guiu, F.}, year={1969}, month=jan, pages={785–795} }

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