Effect of holding time at stabilization annealing on properties of 08CH18N10T austenitic stainless steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F20%3A43961609" target="_blank" >RIV/49777513:23210/20:43961609 - isvavai.cz</a>
Result on the web
<a href="https://www.confer.cz/metal/2020" target="_blank" >https://www.confer.cz/metal/2020</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.37904/metal.2020.3498" target="_blank" >10.37904/metal.2020.3498</a>
Alternative languages
Result language
angličtina
Original language name
Effect of holding time at stabilization annealing on properties of 08CH18N10T austenitic stainless steel
Original language description
Titanium-stabilized austenitic stainless steel 08Ch18N10T is often used in nuclear power due to its properties. The parts of the primary circuit of the nuclear reactor are manufactured from this steel, so the material must achieve both very good corrosion resistance and thermal stability of the structure - yield strength of at least 177 MPa at 350 °C is prescribed. The treatment of this steel involves several important stages that affect the resulting mechanical properties. In particular, the solution and stabilization annealing stages after forging or rolling are very time and energy-intensive, and therefore various ways to reduce these times are sought. The combination of solution annealing at 1020 °C with a holding time of 15 and 30 minutes and stabilization annealing at 720 °C with a holding time of 2.5 hours to 15 hours was tested on samples from the 08Ch18N10T steel. The holding times at temperatures were adapted to the size of the used semi-products. The aim was to find out not only the effect of holding time during stabilization annealing on mechanical properties but also the effect of different solution annealing time. The results showed that prolonging the holding time during solution annealing has a significant impact on reducing the variance in mechanical properties. In all combinations, yield strength at 350 °C higher than 200 MPa and tensile strength over 380 MPa were obtained.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/TJ02000274" target="_blank" >TJ02000274: Determination of the principles and processes taking place during the stabilization annealing of austenitic stainless steels used in nuclear power</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
METAL 2020-29th International Conference on Metallurgy and Materials, Conference Proceedings
ISBN
978-80-87294-97-0
ISSN
2694-9296
e-ISSN
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Number of pages
6
Pages from-to
428-433
Publisher name
Tanger Ltd.
Place of publication
Ostrava
Event location
Brno, Česko
Event date
May 20, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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