Title: On the Diffusion Process of Irradiation-Induced Point Defects in the Stress Field of a Moving Dislocation
Authors: STEINBACH E.
Publisher: European Commission
Publication Year: 1987
JRC N°: JRC5289
Other Identifiers: EUR 11231 EN
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC5289
Type: EUR - Scientific and Technical Research Reports
Abstract: THE CELLULAR MODEL OF A DISLOCATION IS USED FOR AN INVESTIGATION OF THE TIME-DEPENDENT DIFFUSION PROCESS OF IRRADIATION-INDUCED POINT DEFECTS INTERACTING WITH THE STRESS FIELD OF A MOVING DISLOCATION. AN ANALYTIC SOLUTION IS GIVEN TAKING INTO ACCOUNT THE ELASTIC INTERACTION DUE TO THE FIRST-ORDER SIZE EFFECT AND THE STRESS-INDUCED INTERACTION, THE KINEMATIC INTERACTION DUE TO THE DISLOCATION MOTION AS WELL AS THE PRESENCE OF SECONDARY NEUTRAL SINKS. THE RESULTS FOR THE SPACE AND TIME-DEPENDENT POINT DEFECT CONCENTRATION, REPRESENTED IN TERMS OF MATHIEU-BESSEL AND MATHIEU-HANKEL FUNCTIONS, EMPHASISE THE INFLUENCE OF THE PARAMETERS WHICH HAVE BEEN TAKEN INTO CONSIDERATION. PROCEEDING FROM THESE SOLUTIONS, FORMULAE FOR THE DIFFUSION FLUX REACHING UNIT LENGTH OF THE DISLOCATION, WHICH PLAYS AN IMPORTANT ROLE WITH REGARD TO VOID SWELLING AND IRRADIATION-INDUCED CREEP, ARE DERIVED.
JRC Institute:Joint Research Centre Historical Collection

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