The low cycle fatigue behaviour of MAR-M247 superalloy under different strain rates and cycle shapes at 750?C

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00560105" target="_blank" >RIV/68081723:_____/22:00560105 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0142112322003899?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0142112322003899?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijfatigue.2022.107133" target="_blank" >10.1016/j.ijfatigue.2022.107133</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The low cycle fatigue behaviour of MAR-M247 superalloy under different strain rates and cycle shapes at 750?C

Popis výsledku v původním jazyce

High-temperature low-cycle fatigue experiments were performed at different strain rates on nickel-based su-peralloy MAR-M247. Furthermore, slow-fast, fast-slow and dwell-fatigue tests were conducted. The deformation, damage and lifetime behaviour as a function of strain rate and cycle shape were observed. Results show that the lifetime decreases with decreasing strain rate, indicating the negative influence of time-dependent creep and oxidation mechanisms. The lifetimes of slow-fast and dwell-fatigue tests are lower than those for fast-slow tests, although the mean stress is compressive in slow-fast and dwell-fatigue tests and tensile in fast-slow tests. Slowfast and dwell-fatigue tests lead to grain boundary cavitation.

Název v anglickém jazyce

The low cycle fatigue behaviour of MAR-M247 superalloy under different strain rates and cycle shapes at 750?C

Popis výsledku anglicky

High-temperature low-cycle fatigue experiments were performed at different strain rates on nickel-based su-peralloy MAR-M247. Furthermore, slow-fast, fast-slow and dwell-fatigue tests were conducted. The deformation, damage and lifetime behaviour as a function of strain rate and cycle shape were observed. Results show that the lifetime decreases with decreasing strain rate, indicating the negative influence of time-dependent creep and oxidation mechanisms. The lifetimes of slow-fast and dwell-fatigue tests are lower than those for fast-slow tests, although the mean stress is compressive in slow-fast and dwell-fatigue tests and tensile in fast-slow tests. Slowfast and dwell-fatigue tests lead to grain boundary cavitation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/EF18_053%2F0016933" target="_blank" >EF18_053/0016933: Mezinárodní mobilita pracovníků ÚFM</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

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

164

Číslo periodika v rámci svazku

NOV

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

107133

Kód UT WoS článku

000835138800001

EID výsledku v databázi Scopus

2-s2.0-85134427657