Cyclic plastic response and fatigue life in superduplex 2507 stainless steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F10%3A00332428" target="_blank" >RIV/68081723:_____/10:00332428 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Cyclic plastic response and fatigue life in superduplex 2507 stainless steel

Popis výsledku v původním jazyce

Superduplex 2507 type steel has been subjected to symmetric cyclic loading with constant strain rate and constant plastic strain amplitude or sinusoidal cyclic loading with constant stress amplitude at room temperature in a wide interval of stress and plastic strain amplitudes. Fatigue hardening/softening curves were recorded and compared for both types of loading. Cyclic stress?strain curves and fatigue life curves in the form of Coffin?Manson curve and Wöhler curve using both loading regimes were evaluated and compared. The analysis of the hysteresis loop shape was used to determine the contribution of the effective stress and to find the distribution of critical internal stresses in both phases of the steel. The typical internal dislocation structure in both phases was documented. The cyclic response of the material was discussed in relation to the dislocation structure developed in cyclic straining in austenitic and ferritic phases.

Název v anglickém jazyce

Cyclic plastic response and fatigue life in superduplex 2507 stainless steel

Popis výsledku anglicky

Superduplex 2507 type steel has been subjected to symmetric cyclic loading with constant strain rate and constant plastic strain amplitude or sinusoidal cyclic loading with constant stress amplitude at room temperature in a wide interval of stress and plastic strain amplitudes. Fatigue hardening/softening curves were recorded and compared for both types of loading. Cyclic stress?strain curves and fatigue life curves in the form of Coffin?Manson curve and Wöhler curve using both loading regimes were evaluated and compared. The analysis of the hysteresis loop shape was used to determine the contribution of the effective stress and to find the distribution of critical internal stresses in both phases of the steel. The typical internal dislocation structure in both phases was documented. The cyclic response of the material was discussed in relation to the dislocation structure developed in cyclic straining in austenitic and ferritic phases.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

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

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Svazek periodika

32

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000272295900006

EID výsledku v databázi Scopus

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