Quantitative Model of the Surface Relief Formation in Cyclic Straining

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F15%3A00465430" target="_blank" >RIV/68081723:_____/15:00465430 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.12693/APhysPolA.128.675" target="_blank" >http://dx.doi.org/10.12693/APhysPolA.128.675</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12693/APhysPolA.128.675" target="_blank" >10.12693/APhysPolA.128.675</a>

Result language

angličtina

Original language name

Quantitative Model of the Surface Relief Formation in Cyclic Straining

Original language description

The cyclic strain localization in crystalline materials subjected to cyclic loading results in speci c dislocation arrangement in persistent slip bands consisting of alternating dislocation rich and dislocation poor volumes. In the present model the interaction of mobile dislocations in persistent slip band leading to the formation of point defects during cyclic straining is considered. Point defects are steadily produced and simultaneously annihilated due to localized cyclic straining. The non-equilibrium point defects migrate to the matrix and result in transfer of matter between persistent slip band and the matrix and formation of the internal stresses both in the persistent slip band and in the matrix. Plastic relaxation of internal stresses leads to the formation of the characteristic surface relief in the form of persistent slip markings (extrusions and intrusions). Process of point defect migration is quantitatively described and the form of extrusion and parallel intrusions is predicted under some simplifying assumptions. The predictions of the model are discussed and predicted surface relief is compared with selected observations of surface relief produced by cyclic straining.

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

JL - Fatigue and fracture mechanics

OECD FORD branch

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Project

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

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Acta Physica Polonica. A

ISSN

0587-4246

e-ISSN

—

Volume of the periodical

128

Issue of the periodical within the volume

4

Country of publishing house

PL - POLAND

Number of pages

6

Pages from-to

675-680

UT code for WoS article

000366357300051

EID of the result in the Scopus database

2-s2.0-84950287662