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Evaluation of the Possibility of Using 1.4462 and 1.4501 Steel as a Construction Material for Apparatus Operating at an Increased Temperature and with Corrosive Factors

The objective of this study was to determine the requirements for steels used as construction materials for chemical apparatus operating at an elevated temperature and to correlate them with the properties of the tested steels. The experimental part examined the influence of the annealing process on...

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Autores principales: Prałat, Karol, Krupińska, Andżelika, Ochowiak, Marek, Włodarczak, Sylwia, Matuszak, Magdalena, Ciemnicka, Justyna, Koper, Artur, Wójcicka, Karolina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8306184/
https://www.ncbi.nlm.nih.gov/pubmed/34300931
http://dx.doi.org/10.3390/ma14144014
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author Prałat, Karol
Krupińska, Andżelika
Ochowiak, Marek
Włodarczak, Sylwia
Matuszak, Magdalena
Ciemnicka, Justyna
Koper, Artur
Wójcicka, Karolina
author_facet Prałat, Karol
Krupińska, Andżelika
Ochowiak, Marek
Włodarczak, Sylwia
Matuszak, Magdalena
Ciemnicka, Justyna
Koper, Artur
Wójcicka, Karolina
author_sort Prałat, Karol
collection PubMed
description The objective of this study was to determine the requirements for steels used as construction materials for chemical apparatus operating at an elevated temperature and to correlate them with the properties of the tested steels. The experimental part examined the influence of the annealing process on the structure and properties of X2CrNiMoN22-5-3 (1.4462) and X2CrNiMoCuWN25-7-4 (1.4501) steel. Heat treatment was carried out on the tested samples at a temperature of 600 °C and 800 °C. Changes were observed after the indicated time intervals of 250 and 500 h. In order to determine the differences between the initial state and after individual annealing stages, metallographic specimens were performed, the structure was analyzed using an optical microscope and the micro-hardness was measured using the Vickers method. Potentiostatic tests of the samples were carried out to assess the influence of thermal process parameters on the electrochemical properties of the passive layer. An increase in the hardness of the samples was observed with increasing temperature and annealing time, the disappearance of magnetic properties for both samples after annealing at the temperature of 800 °C, as well as a significant deterioration in corrosion resistance in the case of treatment at a higher temperature.
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spelling pubmed-83061842021-07-25 Evaluation of the Possibility of Using 1.4462 and 1.4501 Steel as a Construction Material for Apparatus Operating at an Increased Temperature and with Corrosive Factors Prałat, Karol Krupińska, Andżelika Ochowiak, Marek Włodarczak, Sylwia Matuszak, Magdalena Ciemnicka, Justyna Koper, Artur Wójcicka, Karolina Materials (Basel) Article The objective of this study was to determine the requirements for steels used as construction materials for chemical apparatus operating at an elevated temperature and to correlate them with the properties of the tested steels. The experimental part examined the influence of the annealing process on the structure and properties of X2CrNiMoN22-5-3 (1.4462) and X2CrNiMoCuWN25-7-4 (1.4501) steel. Heat treatment was carried out on the tested samples at a temperature of 600 °C and 800 °C. Changes were observed after the indicated time intervals of 250 and 500 h. In order to determine the differences between the initial state and after individual annealing stages, metallographic specimens were performed, the structure was analyzed using an optical microscope and the micro-hardness was measured using the Vickers method. Potentiostatic tests of the samples were carried out to assess the influence of thermal process parameters on the electrochemical properties of the passive layer. An increase in the hardness of the samples was observed with increasing temperature and annealing time, the disappearance of magnetic properties for both samples after annealing at the temperature of 800 °C, as well as a significant deterioration in corrosion resistance in the case of treatment at a higher temperature. MDPI 2021-07-18 /pmc/articles/PMC8306184/ /pubmed/34300931 http://dx.doi.org/10.3390/ma14144014 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Prałat, Karol
Krupińska, Andżelika
Ochowiak, Marek
Włodarczak, Sylwia
Matuszak, Magdalena
Ciemnicka, Justyna
Koper, Artur
Wójcicka, Karolina
Evaluation of the Possibility of Using 1.4462 and 1.4501 Steel as a Construction Material for Apparatus Operating at an Increased Temperature and with Corrosive Factors
title Evaluation of the Possibility of Using 1.4462 and 1.4501 Steel as a Construction Material for Apparatus Operating at an Increased Temperature and with Corrosive Factors
title_full Evaluation of the Possibility of Using 1.4462 and 1.4501 Steel as a Construction Material for Apparatus Operating at an Increased Temperature and with Corrosive Factors
title_fullStr Evaluation of the Possibility of Using 1.4462 and 1.4501 Steel as a Construction Material for Apparatus Operating at an Increased Temperature and with Corrosive Factors
title_full_unstemmed Evaluation of the Possibility of Using 1.4462 and 1.4501 Steel as a Construction Material for Apparatus Operating at an Increased Temperature and with Corrosive Factors
title_short Evaluation of the Possibility of Using 1.4462 and 1.4501 Steel as a Construction Material for Apparatus Operating at an Increased Temperature and with Corrosive Factors
title_sort evaluation of the possibility of using 1.4462 and 1.4501 steel as a construction material for apparatus operating at an increased temperature and with corrosive factors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8306184/
https://www.ncbi.nlm.nih.gov/pubmed/34300931
http://dx.doi.org/10.3390/ma14144014
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