Fatigue crack initiation ? the role of point defects

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F12%3A00387587" target="_blank" >RIV/68081723:_____/12:00387587 - 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
Fatigue crack initiation ? the role of point defects
Original language description
The role of point defects in the formation of surface relief and in the initiation of a fatigue crack in crystalline materials is analyzed. The dislocation interactions in the bands of intensive cyclic slip are specified and relations describing the formation and annihilation of interstitial and vacancy type defects are derived. The formation, annihilation and migration of point defects is proposed to be responsible for the mass redistribution within PSB and between PSB and the matrix boundary. The redistribution of the matter results in local tensile and compressive stresses that are relaxed by continuous dislocation movement within PSB and lead to the formation of characteristic surface relief in the form of extrusions and intrusions.
Czech name
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Czech description
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Project
<a href="/en/project/GAP108%2F10%2F2371" target="_blank" >GAP108/10/2371: Localization and irreversibility of cyclic slip in polycrystals</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 16th International Colloquium Mechanical Fatigue of Materials
ISBN
978-80-87434-05-5
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
48-55
Publisher name
Ústav fyziky materiálů AV ČR, v. v. i.
Place of publication
Brno
Event location
Brno
Event date
Sep 24, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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