Creep properties of simulated heat-affected zone of HR3C austenitic steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00480465" target="_blank" >RIV/68081723:_____/17:00480465 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.matchar.2017.04.012" target="_blank" >http://dx.doi.org/10.1016/j.matchar.2017.04.012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matchar.2017.04.012" target="_blank" >10.1016/j.matchar.2017.04.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Creep properties of simulated heat-affected zone of HR3C austenitic steel

Popis výsledku v původním jazyce

Tensile creep tests on austenitic stainless HR3C steel pipe in an as-received state and after heat affected zonen(HAZ) thermal cycle simulation by means of the GLEEBLE 3800 physical simulator were carried out at 923 andn1023 K and an applied stress range between 100 and 350 MPa to evaluate the effect of welding on its creepnproperties and behaviour. It was found that creep testing was conducted in a power-law creep regime. Thenresults show a clear detrimental influence of the HAZ simulation on creep properties of HR3C steel at 923 K andnfor very short creep exposure. However, with increasing time to fracture, the effect of weld simulation becomesnless significant. By contrast, no such deterioration of creep properties was detected at 1023 K. The evaluatednsimilar values of the stress exponents of the minimum creep rate and the time to fracture are explained using thenassumption that both creep deformation and the fracture process are controlled by the same mechanism. Thenmain creep fracture mode was intergranular brittle fracture due to grain boundary creep damage.

Název v anglickém jazyce

Creep properties of simulated heat-affected zone of HR3C austenitic steel

Popis výsledku anglicky

Tensile creep tests on austenitic stainless HR3C steel pipe in an as-received state and after heat affected zonen(HAZ) thermal cycle simulation by means of the GLEEBLE 3800 physical simulator were carried out at 923 andn1023 K and an applied stress range between 100 and 350 MPa to evaluate the effect of welding on its creepnproperties and behaviour. It was found that creep testing was conducted in a power-law creep regime. Thenresults show a clear detrimental influence of the HAZ simulation on creep properties of HR3C steel at 923 K andnfor very short creep exposure. However, with increasing time to fracture, the effect of weld simulation becomesnless significant. By contrast, no such deterioration of creep properties was detected at 1023 K. The evaluatednsimilar values of the stress exponents of the minimum creep rate and the time to fracture are explained using thenassumption that both creep deformation and the fracture process are controlled by the same mechanism. Thenmain creep fracture mode was intergranular brittle fracture due to grain boundary creep damage.

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

2017

Kód důvěrnosti údajů

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

Název periodika

Materials Characterization

ISSN

1044-5803

e-ISSN

—

Svazek periodika

128

Číslo periodika v rámci svazku

JUN

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

238-247

Kód UT WoS článku

000405881200031

EID výsledku v databázi Scopus

2-s2.0-85018536673