Mesoscale plastic texture in body-centered cubic metals under uniaxial load

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00481151" target="_blank" >RIV/68081723:_____/17:00481151 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevMaterials.1.063601" target="_blank" >http://dx.doi.org/10.1103/PhysRevMaterials.1.063601</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevMaterials.1.063601" target="_blank" >10.1103/PhysRevMaterials.1.063601</a>

Result language

angličtina

Original language name

Mesoscale plastic texture in body-centered cubic metals under uniaxial load

Original language description

We develop a minimal continuum dislocation dynamics model for slip in bcc metals that accounts explicitlynfor non-Schmid behavior of screw dislocations in these materials. The dislocation substructure is represented by a continuum distribution of 1/2[111] screw dislocations moving on three possible {110} planes according to the flow rule that describes the response of isolated screw dislocations to external loads. The cross-slip of dislocations is assessed using the master equation which takes into account different energy barriers for dislocations moving on the three slip planes. To demonstrate the performance of the model, we study the buildup of plastic strain at 77 K in both tension and compression for a number of loading directions covering the entire area of the standard stereographic triangle. The non-Schmid behavior of screw dislocations is shown to persist to the continuum level, whereby interactions between dislocations merely affect the rate of plastic flow.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

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

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

Physical Review Materials

ISSN

2475-9953

e-ISSN

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Volume of the periodical

1

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

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UT code for WoS article

000416593900001

EID of the result in the Scopus database

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