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Abstract

THE MODEL OF A LOSS CONTINUUM IS USED TO DERIVE, FOR THE FIRST TIME, EXACTLY THE SYNERGISTIC INFLUENCE OF THE ELASTIC INTERACTION, ADDITIONAL SINKS AND RATE LIMITATION ON THE POINT DEFECT FLUX TO A DISLOCATION BY MEANS OF THE ELASTIC FIELD MODEL OF A DISLOCATION. TAKING INTO CONSIDERATION THESE RESULTS, THE DERIVATION OF SELF-CONSISTENT, APPROXIMATIVE FORMULAE FOR DISLOCATION SINK STRENGTHS IS POSSIBLE. THE LATTER PERMIT A POWERFUL APPLICATION WITHIN THE RATE THEORY OF RADIATION DAMAGE. THE USE OF DATA PRODUCED BY ELECTRON AND ION IRRADIAITON ENABLES CALIBRATION OF ALL FIT PARAMETERS. PREDICTIONS OUTSIDE THE EXISTING DATA DOMAIN CAN THUS BE MADE ON THE SWELLING BEHAVIOUR OF MATERIALS. THIS ADJUSTMENT, WHICH PROVIDES AN EXCELLENT DESCRIPTION OF THE EXPERIMENTAL RESULTS, LEADS TO NEW EXPRESSIONS FOR THE RATE LIMITATION AND CASCADE COLLAPSE EFFICIENCY PARAMETERS. BY USING THESE PARAMETERS IT IS POSSIBLE TO PREDICT THE SWELLING BEHAVIOUR IN THE CASE OF NEUTRON IRRADIATION. WHEN COMPARING THESE WITH EXPERIMENTAL SWELLING CURVES, THERE IS A VERY STRONG CORRESPONDENCE.

Additional information

Authors: STEINBACH E JRC-ISPRA, JRC-ISPRA
Bibliographic Reference: EUR 11384 DE (1988) MF, PP 51, ECU 4.00, BLOW-UP COPY, ECU 7.50, AVAILABILITY: EUROFFICE, LUXEMBOURG, BP 1003, GDL
Availability: Can be ordered online
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