Experimental study on the origin of crack initiation in fatigued metals

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F13%3A00399547" target="_blank" >RIV/68081723:_____/13:00399547 - 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 study on the origin of crack initiation in fatigued metals
Original language description
Early stages of surface relief evolution of persistent slip markings (PSMs) were studied by atomic force microscopy (AFM) and high-resolution scanning electron microscopy (SEM? FEG) on two polycrystalline materials ? 316L austenitic stainless steel fatigued at 93 K, 173 K and 573 K and copper fatigued at 83 K, 173 K and 295 K. Experimental data on the morphology of PSMs, occurrence of extrusions and intrusions and the kinetics of extrusion growth are discussed with respect to the formation of point defects within areas of localized cyclic slip (persistent slip bands ? PSBs) and especially to their mobility at different temperatures. The importance of mass redistribution due to the migration of respective type of point defects for PSM formation and creation of fatigue crack embryos, i.e. sharp intrusions is 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
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the Seventh International Conference on Low Cycle Fatigue - LCF7
ISBN
978-3-9814516-2-7
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
391-396
Publisher name
DMV
Place of publication
Berlín
Event location
Aachen
Event date
Sep 9, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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