Effect of phase angle on thermo-mechanical fatigue behaviour of boron-added 9% Cr martensitic steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F25%3A00640708" target="_blank" >RIV/68081723:_____/25:00640708 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/25:00387516

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0013794425008513?pes=vor&utm_source=clarivate&getft_integrator=clarivate" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0013794425008513?pes=vor&utm_source=clarivate&getft_integrator=clarivate</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.engfracmech.2025.111650" target="_blank" >10.1016/j.engfracmech.2025.111650</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of phase angle on thermo-mechanical fatigue behaviour of boron-added 9% Cr martensitic steel

Popis výsledku v původním jazyce

In this article, the mechanical behaviour of boron-added 9% Cr martensitic stainless steel, nCOST FB2, was investigated under TMF loading between 300 ◦C and 620 ◦C. TMF tests were nperformed at various strain amplitudes with a constant heating and cooling rate of 2 ◦C/s, nat four different phase angles between temperature and mechanical strain, involving In-Phase n(IP) and Out-of-Phase (OP) tests. All the TMF tests showed cyclic softening, associated with nlath coarsening, a reduction in dislocation density, and were accompanied by significant mean nstresses under both IP- and OP-TMF. Damage mechanisms revealed environmentally assisted ntransgranular cracking as the predominant failure mode, with enhanced oxidation-induced ncracking for OP-TMF, while under IP-TMF, cracking was suppressed despite a more significant nsurface oxidation. The fatigue lifetime varied for different TMF phase angles, with OP-TMF and ncounter-clockwise diamond phase angles being the most detrimental. Finally, a damage model nwas proposed that combines the strain-life approach, represented by the plastic strain range, nwith a time-dependent damage term and mean stress correction, in order to predict lifetime nunder various TMF loading conditions.

Název v anglickém jazyce

Effect of phase angle on thermo-mechanical fatigue behaviour of boron-added 9% Cr martensitic steel

Popis výsledku anglicky

In this article, the mechanical behaviour of boron-added 9% Cr martensitic stainless steel, nCOST FB2, was investigated under TMF loading between 300 ◦C and 620 ◦C. TMF tests were nperformed at various strain amplitudes with a constant heating and cooling rate of 2 ◦C/s, nat four different phase angles between temperature and mechanical strain, involving In-Phase n(IP) and Out-of-Phase (OP) tests. All the TMF tests showed cyclic softening, associated with nlath coarsening, a reduction in dislocation density, and were accompanied by significant mean nstresses under both IP- and OP-TMF. Damage mechanisms revealed environmentally assisted ntransgranular cracking as the predominant failure mode, with enhanced oxidation-induced ncracking for OP-TMF, while under IP-TMF, cracking was suppressed despite a more significant nsurface oxidation. The fatigue lifetime varied for different TMF phase angles, with OP-TMF and ncounter-clockwise diamond phase angles being the most detrimental. Finally, a damage model nwas proposed that combines the strain-life approach, represented by the plastic strain range, nwith a time-dependent damage term and mean stress correction, in order to predict lifetime nunder various TMF loading conditions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Engineering Fracture Mechanics

ISSN

0013-7944

e-ISSN

1873-7315

Svazek periodika

330

Číslo periodika v rámci svazku

Dec

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

21

Strana od-do

111650

Kód UT WoS článku

001610711800001

EID výsledku v databázi Scopus

2-s2.0-105020903750