Non-Schmid behavior of extended dislocations in computer simulations of magnesium

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F18%3A00496954" target="_blank" >RIV/68081723:_____/18:00496954 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.commatsci.2017.10.028" target="_blank" >http://dx.doi.org/10.1016/j.commatsci.2017.10.028</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.commatsci.2017.10.028" target="_blank" >10.1016/j.commatsci.2017.10.028</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Non-Schmid behavior of extended dislocations in computer simulations of magnesium

Popis výsledku v původním jazyce

Critical resolved shear stresses are studied by means of atomistic simulations for dissociated screw dislocation with Burgers vector 1/3[11 (2) over bar0] in magnesium. Deviation from Schmid law is demonstrated for dislocation glide on basal and prismatic planes. It was shown that all stress components have influence on the critical resolved shear stress. The non-Schmid behavior is caused by changes of dislocation core width due to acting of non-glide stress components. In atomistic simulations, the critical resolved shear stress varies in the range of 0.2-6.7 MPa for basal slip and 25-55 MPa for prismatic slip depending on values of non-glide stress components. It is expected that such behavior can be partially responsible for scattering of experimental data for yield stress in magnesium. (C) 2017 Elsevier B.V. All rights reserved.

Název v anglickém jazyce

Non-Schmid behavior of extended dislocations in computer simulations of magnesium

Popis výsledku anglicky

Critical resolved shear stresses are studied by means of atomistic simulations for dissociated screw dislocation with Burgers vector 1/3[11 (2) over bar0] in magnesium. Deviation from Schmid law is demonstrated for dislocation glide on basal and prismatic planes. It was shown that all stress components have influence on the critical resolved shear stress. The non-Schmid behavior is caused by changes of dislocation core width due to acting of non-glide stress components. In atomistic simulations, the critical resolved shear stress varies in the range of 0.2-6.7 MPa for basal slip and 25-55 MPa for prismatic slip depending on values of non-glide stress components. It is expected that such behavior can be partially responsible for scattering of experimental data for yield stress in magnesium. (C) 2017 Elsevier B.V. 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

2018

Kód důvěrnosti údajů

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

Název periodika

Computational Materials Science

ISSN

0927-0256

e-ISSN

—

Svazek periodika

142

Číslo periodika v rámci svazku

FEB

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

261-267

Kód UT WoS článku

000414875300030

EID výsledku v databázi Scopus

2-s2.0-85032297385