Mechanistic understanding of the size effect on shock facilitated dislocation nucleation at semicoherent interfaces

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F20%3A10244876" target="_blank" >RIV/61989100:27640/20:10244876 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27740/20:10244876

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1359646219307407?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1359646219307407?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scriptamat.2019.12.021" target="_blank" >10.1016/j.scriptamat.2019.12.021</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mechanistic understanding of the size effect on shock facilitated dislocation nucleation at semicoherent interfaces

Popis výsledku v původním jazyce

Interface-facilitated dislocation nucleation dominates deformation behaviors of metallic nanolaminates under shock loadings. Recent works demonstrated a strong size effect of dislocation nucleation for bimetal nanolaminates. Herein, we demonstrate that such effect is attributed to stress effect of misfit dislocations originating from neighboring interfaces, which is consistent with analytical solutions to the coupled stress fields of misfit dislocations. When changing the relative position of neighboring layers, the size effect is modified because of the variational stress. These findings provide a rational evaluation on the observed size effect of dislocation nucleation, and a foundation in designing strong shock-resistant materials by interface engineering. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

Mechanistic understanding of the size effect on shock facilitated dislocation nucleation at semicoherent interfaces

Popis výsledku anglicky

Interface-facilitated dislocation nucleation dominates deformation behaviors of metallic nanolaminates under shock loadings. Recent works demonstrated a strong size effect of dislocation nucleation for bimetal nanolaminates. Herein, we demonstrate that such effect is attributed to stress effect of misfit dislocations originating from neighboring interfaces, which is consistent with analytical solutions to the coupled stress fields of misfit dislocations. When changing the relative position of neighboring layers, the size effect is modified because of the variational stress. These findings provide a rational evaluation on the observed size effect of dislocation nucleation, and a foundation in designing strong shock-resistant materials by interface engineering. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Scripta materialia

ISSN

1359-6462

e-ISSN

—

Svazek periodika

178

Číslo periodika v rámci svazku

March 2020

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

457-462

Kód UT WoS článku

000510947200092

EID výsledku v databázi Scopus

2-s2.0-85076859360