Mechanism of intergranular fatigue crack growth in copper polycrystal

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F24%3A00582924" target="_blank" >RIV/68081723:_____/24:00582924 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0142112324000483?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0142112324000483?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijfatigue.2024.108190" target="_blank" >10.1016/j.ijfatigue.2024.108190</a>

Result language
angličtina
Original language name
Mechanism of intergranular fatigue crack growth in copper polycrystal
Original language description
Polycrystalline copper specimens (notched and smooth) were subjected to constant strain amplitude loading and the fatigue fracture surface was inspected and analyzed. The majority of facets on the fracture surfaces indicated intercrystalline fracture. Facets with well-developed relief were inspected. The relief was formed by persistent slip markings consisting of extrusions and intrusions similar to that on the specimen surface in the cyclic plastic zone of the growing crack. The mechanism of grain boundary cracking in the cyclic plastic zone of the growing crack similar to that recently suggested for intergranular crack initiation was drawn up. The crack growth mechanism based on the interconnection of cracked grain boundaries and the tear of the islands between them was proposed. The effect of grain size, orientation, and crack growth rate on the grain boundary cracking was discussed. Preliminary results on other FCC materials indicate a more general validity of the proposed intergranular fatigue crack growth mechanism.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering

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
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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