Behaviour of dissimilar weld joint of steels FB2 and F during long-term creep test

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F18%3AN0000043" target="_blank" >RIV/47718684:_____/18:N0000043 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/issn.1757-899X/461/1/012036" target="_blank" >http://dx.doi.org/10.1088/issn.1757-899X/461/1/012036</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/issn.1757-899X/461/1/012036" target="_blank" >10.1088/issn.1757-899X/461/1/012036</a>

Result language

angličtina

Original language name

Behaviour of dissimilar weld joint of steels FB2 and F during long-term creep test

Original language description

Creep test to the rupture of both the dissimilar weld joint made of FB2 and F martensitic steels and the base materials was carried out at temperatures ranging from 550 °C to 650 °C in the stress range from 70 to 220 MPa. Creep rupture strengths of the weld joint and the base materials were evaluated using Larson-Miller parameter. Assessment of microstructure development and changes of hardness was correlated with the creep strength. Critical zones of creep damage were determined. At lower temperatures and higher stresses the weld joint ruptured in the base material of F steel unaffected by welding, while at higher temperatures and lower stresses rupture occurred in the intercritical heated and fine-grained parts of heat affected zone of steel F. During creep at temperatures above 575 °C Laves phase precipitated in all parts of the weld joint and especially in the heat affected zones. Coarse Laves phase particles and their clusters with chromium carbides served as nucleation centres for cavities. As the fine grained heat affected zone of F steel was the softest part of the weld joint, many cavities originated and initiated causing failure of samples.

Czech name

—

Czech description

—

Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/TE01020118" target="_blank" >TE01020118: Electron microscopy</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Name of the periodical

IOP Conf. Series: Materials Science and Engineering

ISSN

1757-8981

e-ISSN

1757-899X

Volume of the periodical

461

Issue of the periodical within the volume

012036

Country of publishing house

CH - SWITZERLAND

Number of pages

6

Pages from-to

1-6

UT code for WoS article

—

EID of the result in the Scopus database

—