The effects of postweld heat treatment and isothermal aging on T92 steel heat-affected zone mechanical properties of T92/TP316H dissimilar weldments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00463929" target="_blank" >RIV/68081723:_____/16:00463929 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1557/jmr.2016.134" target="_blank" >http://dx.doi.org/10.1557/jmr.2016.134</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1557/jmr.2016.134" target="_blank" >10.1557/jmr.2016.134</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effects of postweld heat treatment and isothermal aging on T92 steel heat-affected zone mechanical properties of T92/TP316H dissimilar weldments

Popis výsledku v původním jazyce

Cross-weld hardness profile, notch-tensile strength, and impact toughness of T92 steel heataffected zone (T92 HAZ) of dissimilar T92/TP316H welds were studied in dependence of their postweld heat treatment (PWHT) and subsequent long-term aging. Two weldments series were individually subjected to either “single-step tempering PWHT or a modified “two-step renormalizing and tempering PWHT. Subsequently, the welds were isothermally aged at 625 °C for durations from 500 up to 11,000 h. The “single-step PWHT preserved sharp hardness gradient of T92 HAZ, whereas the “two-step PWHT led to the hardness values equalization. The T92 HAZ of the weldment after the “two-step PWHT exhibited initially lower strength and higher toughness, compared to the weldment after the “single-step PWHT. However, after long-term aging a more suitable combination of T92 HAZ mechanical properties i.e., the higher toughness and acceptable strength exhibited the weldments processed by “single-step PWHT.

Název v anglickém jazyce

The effects of postweld heat treatment and isothermal aging on T92 steel heat-affected zone mechanical properties of T92/TP316H dissimilar weldments

Popis výsledku anglicky

Cross-weld hardness profile, notch-tensile strength, and impact toughness of T92 steel heataffected zone (T92 HAZ) of dissimilar T92/TP316H welds were studied in dependence of their postweld heat treatment (PWHT) and subsequent long-term aging. Two weldments series were individually subjected to either “single-step tempering PWHT or a modified “two-step renormalizing and tempering PWHT. Subsequently, the welds were isothermally aged at 625 °C for durations from 500 up to 11,000 h. The “single-step PWHT preserved sharp hardness gradient of T92 HAZ, whereas the “two-step PWHT led to the hardness values equalization. The T92 HAZ of the weldment after the “two-step PWHT exhibited initially lower strength and higher toughness, compared to the weldment after the “single-step PWHT. However, after long-term aging a more suitable combination of T92 HAZ mechanical properties i.e., the higher toughness and acceptable strength exhibited the weldments processed by “single-step PWHT.

Druh

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

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Research

ISSN

0884-2914

e-ISSN

—

Svazek periodika

31

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

1532-1543

Kód UT WoS článku

000377752900017

EID výsledku v databázi Scopus

2-s2.0-84979573876