Stress-Driven Migration of Low-Angle Grain Boundaries Near Crack Tips in Nanocomposites Containing Incoherent Nanoinclusions

Stress-Driven Migration of Low-Angle Grain Boundaries Near Crack Tips in Nanocomposites Containing Incoherent Nanoinclusions

Theoretical model describing stress-driven migration of low-angle grain boundaries (GBs) in the vicinity of growing crack in metal matrix nanocomposites with reinforcing (metallic or ceramic) incoherent nanoinclusions is proposed. Using two-dimensional discrete dislocation dynamics approach profiles...

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Bibliographic Details
Main Authors: Bobylev S.V., Galeeva L.-S.D.
Format: Article
Language:English
Published: De Gruyter 2018-04-01
Series:Reviews on Advanced Materials Science
Online Access:https://doi.org/10.1515/rams-2018-0025
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spelling doaj-0279f103af9147538e86736fdc7165432021-09-05T14:00:07ZengDe GruyterReviews on Advanced Materials Science1605-81272018-04-01551263410.1515/rams-2018-0025Stress-Driven Migration of Low-Angle Grain Boundaries Near Crack Tips in Nanocomposites Containing Incoherent NanoinclusionsBobylev S.V.0Galeeva L.-S.D.1Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, Bolshoj 61, Vasil. Ostrov,St. Petersburg, 199178, RussiaInstitute of Problems of Mechanical Engineering, Russian Academy of Sciences, Bolshoj 61, Vasil. Ostrov,St. Petersburg, 199178, RussiaTheoretical model describing stress-driven migration of low-angle grain boundaries (GBs) in the vicinity of growing crack in metal matrix nanocomposites with reinforcing (metallic or ceramic) incoherent nanoinclusions is proposed. Using two-dimensional discrete dislocation dynamics approach profiles of migrating GBs are analytically calculated and critical stress for transition into unstable migration mode is found. It is shown that the presence of crack always promotes stress-driven migration and thus grain growth.https://doi.org/10.1515/rams-2018-0025
collection DOAJ
language English
format Article
sources DOAJ
author Bobylev S.V.
Galeeva L.-S.D.
spellingShingle Bobylev S.V.
Galeeva L.-S.D.
Stress-Driven Migration of Low-Angle Grain Boundaries Near Crack Tips in Nanocomposites Containing Incoherent Nanoinclusions
Reviews on Advanced Materials Science
author_facet Bobylev S.V.
Galeeva L.-S.D.
author_sort Bobylev S.V.
title Stress-Driven Migration of Low-Angle Grain Boundaries Near Crack Tips in Nanocomposites Containing Incoherent Nanoinclusions
title_short Stress-Driven Migration of Low-Angle Grain Boundaries Near Crack Tips in Nanocomposites Containing Incoherent Nanoinclusions
title_full Stress-Driven Migration of Low-Angle Grain Boundaries Near Crack Tips in Nanocomposites Containing Incoherent Nanoinclusions
title_fullStr Stress-Driven Migration of Low-Angle Grain Boundaries Near Crack Tips in Nanocomposites Containing Incoherent Nanoinclusions
title_full_unstemmed Stress-Driven Migration of Low-Angle Grain Boundaries Near Crack Tips in Nanocomposites Containing Incoherent Nanoinclusions
title_sort stress-driven migration of low-angle grain boundaries near crack tips in nanocomposites containing incoherent nanoinclusions
publisher De Gruyter
series Reviews on Advanced Materials Science
issn 1605-8127
publishDate 2018-04-01
description Theoretical model describing stress-driven migration of low-angle grain boundaries (GBs) in the vicinity of growing crack in metal matrix nanocomposites with reinforcing (metallic or ceramic) incoherent nanoinclusions is proposed. Using two-dimensional discrete dislocation dynamics approach profiles of migrating GBs are analytically calculated and critical stress for transition into unstable migration mode is found. It is shown that the presence of crack always promotes stress-driven migration and thus grain growth.
url https://doi.org/10.1515/rams-2018-0025
work_keys_str_mv AT bobylevsv stressdrivenmigrationoflowanglegrainboundariesnearcracktipsinnanocompositescontainingincoherentnanoinclusions
AT galeevalsd stressdrivenmigrationoflowanglegrainboundariesnearcracktipsinnanocompositescontainingincoherentnanoinclusions
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