Isothermal low-cycle fatigue and fatigue–creep behaviour of 2618 aluminium alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F24%3A00577731" target="_blank" >RIV/68081723:_____/24:00577731 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/24:00369366

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0142112323005285?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0142112323005285?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijfatigue.2023.108027" target="_blank" >10.1016/j.ijfatigue.2023.108027</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Isothermal low-cycle fatigue and fatigue–creep behaviour of 2618 aluminium alloy

Popis výsledku v původním jazyce

A series of strain-controlled Low-Cycle Fatigue (LCF) and fatigue–creep tests were performed on a 2618naluminium alloy for various strain amplitudes at temperatures of 20 ◦C, 160 ◦C and 195 ◦C. LCF tests atnelevated temperatures were performed for three different strain rates between 1 × 10−4/s and 1 × 10−2/s, whilenfatigue–creep tests were performed with either tensile or compressive strain dwell. At 20 ◦C, cyclic hardeningnwas associated with a high dislocation density. In contrast, a localization of plastic deformation into slipnbands and cyclic softening were observed at 195 ◦C. The investigation of the damage mechanisms revealedntransgranular cracking as the predominant failure mode, significantly influenced by Al9FeNi intermetallicnparticles. Finally, fatigue–creep tests were found to be more damaging than equivalent LCF tests, particularlynat 195 ◦C, where a negative strain rate sensitivity on fatigue lifetime was evident.n

Název v anglickém jazyce

Isothermal low-cycle fatigue and fatigue–creep behaviour of 2618 aluminium alloy

Popis výsledku anglicky

A series of strain-controlled Low-Cycle Fatigue (LCF) and fatigue–creep tests were performed on a 2618naluminium alloy for various strain amplitudes at temperatures of 20 ◦C, 160 ◦C and 195 ◦C. LCF tests atnelevated temperatures were performed for three different strain rates between 1 × 10−4/s and 1 × 10−2/s, whilenfatigue–creep tests were performed with either tensile or compressive strain dwell. At 20 ◦C, cyclic hardeningnwas associated with a high dislocation density. In contrast, a localization of plastic deformation into slipnbands and cyclic softening were observed at 195 ◦C. The investigation of the damage mechanisms revealedntransgranular cracking as the predominant failure mode, significantly influenced by Al9FeNi intermetallicnparticles. Finally, fatigue–creep tests were found to be more damaging than equivalent LCF tests, particularlynat 195 ◦C, where a negative strain rate sensitivity on fatigue lifetime was evident.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

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

International Journal of Fatigue

ISSN

0142-1123

e-ISSN

1879-3452

Svazek periodika

179

Číslo periodika v rámci svazku

Feb

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

108027

Kód UT WoS článku

001110253800001

EID výsledku v databázi Scopus

2-s2.0-85175693597