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On effect of second-plasma precipitates on void formation and growth in irradiated alloys; O vliyanii vydelenij vtorykh faz na poroobrazovanie v splavakh pod oblucheniem

Abstract

Effects of coherent and incoherent precipitates on point defect concentrations, recombination rate, and growth of vacancy voids in irradiated materials were considered. A new mechanism of defect loss by enhanced recombination inside coherent precipitates was described. Vacancy swelling suppression, based on the recombination mechanism of point defect loss to coherent precipitates, was shown to be efficient in a wide range of irradiation conditions - from heavy ion irradiation to in-reactor irradiation. Point defect fluxes arising in the vicinity of the coherent precipitate due to difference between recombination rates in the precipitate and matrix, results in segregation fluxes of alloying elements. This effect, being an analog of the inverse Kirkendall effect, influences stability of the coherent precipitates. Modification of chemical composition of coherent precipitates - phenomenon observed experimentally - is likely to be caused by the recombination-driven segregation, followed by infiltration of segregating elements into the precipitates. 39 refs.; 7 figs.; 1 table. (author).
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
KFTI-92-44
Reference Number:
SCA: 360106; 360103; PA: AIX-24:032261; SN: 93000962693
Resource Relation:
Other Information: PBD: 1992
Subject:
36 MATERIALS SCIENCE; STEELS; PHYSICAL RADIATION EFFECTS; VOIDS; DOSE-RESPONSE RELATIONSHIPS; PHASE STUDIES; POINT DEFECTS; RECOMBINATION; SWELLING; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0400-1000 K; VACANCIES; 360106; 360103; RADIATION EFFECTS; MECHANICAL PROPERTIES
OSTI ID:
10135406
Research Organizations:
AN Ukrainskoj SSR, Kharkov (Ukraine). Fiziko-Tekhnicheskij Inst.
Country of Origin:
Ukraine
Language:
Russian
Other Identifying Numbers:
Other: ON: DE93620580; TRN: UA9300156032261
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[22] p.
Announcement Date:
Jul 05, 2005

Citation Formats

Bakai, A S, and Turkin, A A. On effect of second-plasma precipitates on void formation and growth in irradiated alloys; O vliyanii vydelenij vtorykh faz na poroobrazovanie v splavakh pod oblucheniem. Ukraine: N. p., 1992. Web.
Bakai, A S, & Turkin, A A. On effect of second-plasma precipitates on void formation and growth in irradiated alloys; O vliyanii vydelenij vtorykh faz na poroobrazovanie v splavakh pod oblucheniem. Ukraine.
Bakai, A S, and Turkin, A A. 1992. "On effect of second-plasma precipitates on void formation and growth in irradiated alloys; O vliyanii vydelenij vtorykh faz na poroobrazovanie v splavakh pod oblucheniem." Ukraine.
@misc{etde_10135406,
title = {On effect of second-plasma precipitates on void formation and growth in irradiated alloys; O vliyanii vydelenij vtorykh faz na poroobrazovanie v splavakh pod oblucheniem}
author = {Bakai, A S, and Turkin, A A}
abstractNote = {Effects of coherent and incoherent precipitates on point defect concentrations, recombination rate, and growth of vacancy voids in irradiated materials were considered. A new mechanism of defect loss by enhanced recombination inside coherent precipitates was described. Vacancy swelling suppression, based on the recombination mechanism of point defect loss to coherent precipitates, was shown to be efficient in a wide range of irradiation conditions - from heavy ion irradiation to in-reactor irradiation. Point defect fluxes arising in the vicinity of the coherent precipitate due to difference between recombination rates in the precipitate and matrix, results in segregation fluxes of alloying elements. This effect, being an analog of the inverse Kirkendall effect, influences stability of the coherent precipitates. Modification of chemical composition of coherent precipitates - phenomenon observed experimentally - is likely to be caused by the recombination-driven segregation, followed by infiltration of segregating elements into the precipitates. 39 refs.; 7 figs.; 1 table. (author).}
place = {Ukraine}
year = {1992}
month = {Dec}
}