Interactions between particles and low angle dislocation boundaries during high temperature deformation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F05%3A00024903" target="_blank" >RIV/68081723:_____/05:00024903 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Interactions between particles and low angle dislocation boundaries during high temperature deformation

Original language description

Stability and motion of low angle dislocation boundaries in an array of particles is investigated. The 2D model considers discrete dislocations and circular precipitates with and without coherency stress fields. Dislocation-dislocation interactions superimposed with precipitate stress fields and an externally applied stress drive glide and climb of the dislocations. Results show that, in the case of a simple external shear loading, a single-valued critical applied shear stress exists which separates stable and unstable low angle boundary configurations. This critical stress can differ considerably from the Orowan stress. More complicated applied stress states result in less clearly defined transitions between stable and unstable boundary regimes. Dislocation-dislocation interactions that stabilize low angle dislocation boundaries thus may influence the high temperature strength of particle-strengthened alloys.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GA106%2F05%2F0918" target="_blank" >GA106/05/0918: NiTi Shape Memory Alloys and Their Processing-Structure-Transformation Behaviour Relationship</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2005

Confidentiality

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

Name of the periodical

Zeitschrift für Metallkunde

ISSN

0044-3093

e-ISSN

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Volume of the periodical

96

Issue of the periodical within the volume

6

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

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UT code for WoS article

000230562600006

EID of the result in the Scopus database

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