Microstructure Stability of HR3C Welded Steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F18%3AN0000121" target="_blank" >RIV/26722445:_____/18:N0000121 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
Microstructure Stability of HR3C Welded Steel
Original language description
The most recent blocks of fossil fuel power plants worked for steam temperatures above 600 °C they need advanced stainless steels in superheater systems. Is investigated exploitation of new steel grades with higher material properties. In the area of austenitic steels, the perspective grade is undoubtedly HR3C steel (X6CrNiNbN 25-20). In terms of the use of similar weld joints made of HR3C steel in fossil fuel power plants, detailed knowledge on microstructural stability of these weld joints is primary. Similar weld joints made of HR3C steel tubes were manufactured using a combination of GTAW and SMAW welding technologies. Weld joints were studied in both the as-welded state (PW), and after post-weld heat treatment (PWHT) at 1230 °C for 15 minutes. The paper presents the results of microstructure investigation on cross-weld samples tested at 650 and 700 °C. Metallographic analysis was performed on longitudinal sections of creep ruptured samples, microstructures of the same areas, states of heat-treatment and different conditions are compared and microhardness HV 0.5 profiles over cross-weld samples were determined. The paper analyses the preferential rupture locations of the HR3C similar weld joints in dependence on the temperature of creep exposure and applied stress.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
20305 - Nuclear related engineering; (nuclear physics to be 1.3);
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Advanced Technologies for Gen. IV Reactors - October 18th 2018
ISBN
978-80-270-5393-3
ISSN
—
e-ISSN
—
Number of pages
6
Pages from-to
55-60
Publisher name
Centrum výzkumu Řež, s.r.o.
Place of publication
Řež
Event location
Řež
Event date
Oct 18, 2018
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
—