Effect of Heat Treatment Before and After Incremental Rolling on the Mechanical Properties of Titanium-Stabilized Austenitic Stainless Steel
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F22%3A43965309" target="_blank" >RIV/49777513:23210/22:43965309 - isvavai.cz</a>
Výsledek na webu
<a href="https://iopscience.iop.org/article/10.1088/1757-899X/1243/1/012003/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/1243/1/012003/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1757-899X/1243/1/012003" target="_blank" >10.1088/1757-899X/1243/1/012003</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Effect of Heat Treatment Before and After Incremental Rolling on the Mechanical Properties of Titanium-Stabilized Austenitic Stainless Steel
Popis výsledku v původním jazyce
Austenitic stainless steel 08Ch18N10T stabilised with titanium is used for parts of VVER nuclear power reactors. The final mechanical properties are strongly affected by the previous processing history. This is mainly due to the deformation hardening that is incorporated into the material during the production of semi-finished products. The experimental program was performed on 08Ch18N10T steel bars with a diameter of 30 mm. Incremental rolling was performed on bars that remained in the delivered condition and on bars subjected to solution annealing at 1020 °C for 60 minutes before rolling. The rolled bars were stabilised annealed at different temperatures. Then a metallographic evaluation and a tensile test at RT and 350 °C were performed. The results show that the rolling speed significantly affects the mechanical properties after stabilisation annealing. By reducing the rolling speed, it was possible in some cases to increase the yield strength up to 349 MPa. The stabilisation annealing temperature of 720 ° C with a holding time of 10 hours was evaluated as the most advantageous. In the case of higher stabilisation annealing temperatures, the lowest rolling speed, i.e. 25 rpm, had to be performed to achieve higher hot yield strength values exceeding 177 MPa.
Název v anglickém jazyce
Effect of Heat Treatment Before and After Incremental Rolling on the Mechanical Properties of Titanium-Stabilized Austenitic Stainless Steel
Popis výsledku anglicky
Austenitic stainless steel 08Ch18N10T stabilised with titanium is used for parts of VVER nuclear power reactors. The final mechanical properties are strongly affected by the previous processing history. This is mainly due to the deformation hardening that is incorporated into the material during the production of semi-finished products. The experimental program was performed on 08Ch18N10T steel bars with a diameter of 30 mm. Incremental rolling was performed on bars that remained in the delivered condition and on bars subjected to solution annealing at 1020 °C for 60 minutes before rolling. The rolled bars were stabilised annealed at different temperatures. Then a metallographic evaluation and a tensile test at RT and 350 °C were performed. The results show that the rolling speed significantly affects the mechanical properties after stabilisation annealing. By reducing the rolling speed, it was possible in some cases to increase the yield strength up to 349 MPa. The stabilisation annealing temperature of 720 ° C with a holding time of 10 hours was evaluated as the most advantageous. In the case of higher stabilisation annealing temperatures, the lowest rolling speed, i.e. 25 rpm, had to be performed to achieve higher hot yield strength values exceeding 177 MPa.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
—
OECD FORD obor
20501 - Materials engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/TJ02000274" target="_blank" >TJ02000274: Stanovení principů a dějů probíhajících při stabilizačním žíhání v korozivzdorné austenitické oceli používané v jaderné energetice</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů