Corrosion Resistance of Cast Duplex Steels
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU147279" target="_blank" >RIV/00216305:26210/22:PU147279 - isvavai.cz</a>
Result on the web
<a href="https://journals.pan.pl/dlibra/publication/140230/edition/123845/content" target="_blank" >https://journals.pan.pl/dlibra/publication/140230/edition/123845/content</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.24425/afe.2022.140230" target="_blank" >10.24425/afe.2022.140230</a>
Alternative languages
Result language
angličtina
Original language name
Corrosion Resistance of Cast Duplex Steels
Original language description
The aim of this work is to investigate the resistance of cast duplex (austenitic-ferritic) steels to pitting corrosion with respect to the value of PREN (Pitting Resistance Equivalent Number). Pitting corrosion is one of the most common types of corrosion of stainless steels. In most cases, it is caused by the penetration of aggressive anions through the protective passive layer of the steel, and after its disruption, it leads to subsurface propagation of corrosion. The motivation for the research was a severe pitting corrosion attack on the blades of the gypsumcalcium water mixer in a thermal power plant operation. In order to examine the corrosion resistance, 4 samples of 1.4517 steel with different concentrations of alloying elements (within the interval indicated by the steel grade) and thus with a different PREN value were cast. The corrosion resistance of the samples was evaluated by the ASTM G48 - 11 corrosion test in a 6% aqueous FeCl3 solution at room and elevated solution temperatures. To verify the possible effect of different alloying element concentrations on the mechanical properties, the research was supplemented by tensile and Charpy impact tests. Based on the results, it was found that a significant factor in the resistance of duplex steels to pitting corrosion is the temperature of the solution. For the components in operation, it is therefore necessary to take this effect into account and thoroughly control and manage the temperature of the environment in which the components operate.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/TH02020076" target="_blank" >TH02020076: Research and development of casting and welding of duplex stainless steel castings</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Archives of Foundry Engineering
ISSN
1897-3310
e-ISSN
2299-2944
Volume of the periodical
2022
Issue of the periodical within the volume
3
Country of publishing house
PL - POLAND
Number of pages
6
Pages from-to
5-10
UT code for WoS article
000836241100001
EID of the result in the Scopus database
2-s2.0-85140042862