Experimental studies on fundamental mechanisms leading to fatigue crack initiation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F12%3A00381919" target="_blank" >RIV/68081723:_____/12:00381919 - 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
Experimental studies on fundamental mechanisms leading to fatigue crack initiation
Original language description
Early stages of surface relief evolution of persistent slip markings (PSMs) in polycrystalline 316L austenitic stainless steel cycled with constant plastic strain amplitude at 93, 173 and 573 K were studied using atomic force microscopy (AFM) and high-resolution scanning electron microscopy (SEM?FEG). Qualitative and quantitative data on the morphology of PSMs, occurrence of extrusions and intrusions and the kinetics of extrusion growth are reported for all temperatures. In all cases PSMs start as surface extrusions which are later, depending on temperature, accompanied by formation of intrusions. This finding is discussed with respect to the point defect formation within areas of localized cyclic slip and especially to their mobility at different temperatures. Consequences of migration of respective point defects for surface relief formation and conditions for creation of fatigue crack embryos, i.e. sharp intrusions are highlighted.
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
19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety
ISBN
978-5-905576-18-8
ISSN
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e-ISSN
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Number of pages
10
Pages from-to
"Paper No. 266"
Publisher name
Kazan Scientific Centre of the RAS
Place of publication
Kazan
Event location
Kazan
Event date
Aug 26, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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