The sources of cyclic slip irreversibility

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F24%3A00582926" target="_blank" >RIV/68081723:_____/24:00582926 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1359645424000624?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1359645424000624?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.actamat.2024.119709" target="_blank" >10.1016/j.actamat.2024.119709</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The sources of cyclic slip irreversibility

Popis výsledku v původním jazyce

The sources of cyclic slip irreversibility in cyclic straining are analyzed. Several physically based models proposed to explain the specific character of the surface relief of persistent slip markings (PSMs) consisting of extrusions and intrusions were reviewed. Two random slip models were further developed and the characteristic reliefs were obtained using simulations under different assumptions on the slip and its distribution within the persistent slip band (PSB). In a model based on static extrusion, the kinetics of extrusion formation was derived. For a model based on the dynamic growth of extrusion basic characteristics were introduced. Characteristic experimental data on the shape of extrusions and intrusions in fatigued polycrystals and the kinetics of their formation were presented. The predictions of individual models were compared with the experimental data and it was concluded that neither the random slip mode nor the static extrusion model can explain the shape and the kinetics of PSM formation. The model based on the dynamic growth of PSMs is in good agreement with experiments on copper. Specific features of materials with planar slip and dislocation arrangement of the PSB and the matrix were discussed.

Název v anglickém jazyce

The sources of cyclic slip irreversibility

Popis výsledku anglicky

The sources of cyclic slip irreversibility in cyclic straining are analyzed. Several physically based models proposed to explain the specific character of the surface relief of persistent slip markings (PSMs) consisting of extrusions and intrusions were reviewed. Two random slip models were further developed and the characteristic reliefs were obtained using simulations under different assumptions on the slip and its distribution within the persistent slip band (PSB). In a model based on static extrusion, the kinetics of extrusion formation was derived. For a model based on the dynamic growth of extrusion basic characteristics were introduced. Characteristic experimental data on the shape of extrusions and intrusions in fatigued polycrystals and the kinetics of their formation were presented. The predictions of individual models were compared with the experimental data and it was concluded that neither the random slip mode nor the static extrusion model can explain the shape and the kinetics of PSM formation. The model based on the dynamic growth of PSMs is in good agreement with experiments on copper. Specific features of materials with planar slip and dislocation arrangement of the PSB and the matrix were discussed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Acta Materialia

ISSN

1359-6454

e-ISSN

1873-2453

Svazek periodika

267

Číslo periodika v rámci svazku

APR

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

119709

Kód UT WoS článku

001174875100001

EID výsledku v databázi Scopus

2-s2.0-85184042336