Initiation of fatigue cracks in ultrafine-grained materials in highcycle fatigue region
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F14%3A00434600" target="_blank" >RIV/68081723:_____/14:00434600 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.proeng.2014.06.213" target="_blank" >http://dx.doi.org/10.1016/j.proeng.2014.06.213</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.proeng.2014.06.213" target="_blank" >10.1016/j.proeng.2014.06.213</a>
Alternative languages
Result language
angličtina
Original language name
Initiation of fatigue cracks in ultrafine-grained materials in highcycle fatigue region
Original language description
Initiation of fatigue cracks in materials with conventional grain (CG) size was investigated very thoroughly in the past. There is an extensive knowledge on the localization of cyclic plasticity and early crack development; however, it cannot be straightforwardly applied to the ultrafine-grained (UFG) structures with the grain size below 1m, because the crack initiation mechanisms are related to dislocation structures, which cannot develop in UFG materials simply from the size reasons. The paper bringsresults of an experimental investigation of the cyclic strain localization and crack initiation by means of focused ion beam technique (FIB). Two substantially different materials as regards the crystallographic structure, namely UFG Cu and magnesium alloy AZ91 processed by equal channel angular pressing (ECAP) were investigated and the observed characteristic features of crack initiation were discussed. The observations bring evidence that in the high-cycle fatigue (HCF) region point de
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
XVII International Colloquium on Mechanical Fatigue of Metals (ICMFM17)
ISBN
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ISSN
1877-7058
e-ISSN
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Number of pages
4
Pages from-to
2-5
Publisher name
Elsevier
Place of publication
Amsterdam
Event location
Verbania
Event date
Jun 25, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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