Correlation between evolution of inclusions and pitting corrosion in 304 stainless steel with yttrium addition

Effects of the evolution of inclusions on the pitting corrosion resistance of 304 stainless steel with different contents of the rare-earth element yttrium (Y) were studied using thermodynamic calculations, accelerated immersion tests, and electrochemical measurements. The experimental results showe...

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Autores principales: Shi, Weining, Yang, Shufeng, Li, Jingshe
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5859157/
https://www.ncbi.nlm.nih.gov/pubmed/29556014
http://dx.doi.org/10.1038/s41598-018-23273-x
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author Shi, Weining
Yang, Shufeng
Li, Jingshe
author_facet Shi, Weining
Yang, Shufeng
Li, Jingshe
author_sort Shi, Weining
collection PubMed
description Effects of the evolution of inclusions on the pitting corrosion resistance of 304 stainless steel with different contents of the rare-earth element yttrium (Y) were studied using thermodynamic calculations, accelerated immersion tests, and electrochemical measurements. The experimental results showed that regular Y(2)O(3) inclusions demonstrated the best pitting resistance, followed in sequence by (Al,Mn)O inclusions, the composite inclusions, and irregular Y(2)O(3) inclusions. The pitting resistance first decreased, then increased, and then decreased again with increasing Y content, because sulfide inclusions were easily generated when the Y content was low and YN inclusions were easily generated at higher Y contents. The best pitting corrosion resistance was obtained for 304 stainless steel with addition of 0.019% Y.
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spelling pubmed-58591572018-03-20 Correlation between evolution of inclusions and pitting corrosion in 304 stainless steel with yttrium addition Shi, Weining Yang, Shufeng Li, Jingshe Sci Rep Article Effects of the evolution of inclusions on the pitting corrosion resistance of 304 stainless steel with different contents of the rare-earth element yttrium (Y) were studied using thermodynamic calculations, accelerated immersion tests, and electrochemical measurements. The experimental results showed that regular Y(2)O(3) inclusions demonstrated the best pitting resistance, followed in sequence by (Al,Mn)O inclusions, the composite inclusions, and irregular Y(2)O(3) inclusions. The pitting resistance first decreased, then increased, and then decreased again with increasing Y content, because sulfide inclusions were easily generated when the Y content was low and YN inclusions were easily generated at higher Y contents. The best pitting corrosion resistance was obtained for 304 stainless steel with addition of 0.019% Y. Nature Publishing Group UK 2018-03-19 /pmc/articles/PMC5859157/ /pubmed/29556014 http://dx.doi.org/10.1038/s41598-018-23273-x Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Shi, Weining
Yang, Shufeng
Li, Jingshe
Correlation between evolution of inclusions and pitting corrosion in 304 stainless steel with yttrium addition
title Correlation between evolution of inclusions and pitting corrosion in 304 stainless steel with yttrium addition
title_full Correlation between evolution of inclusions and pitting corrosion in 304 stainless steel with yttrium addition
title_fullStr Correlation between evolution of inclusions and pitting corrosion in 304 stainless steel with yttrium addition
title_full_unstemmed Correlation between evolution of inclusions and pitting corrosion in 304 stainless steel with yttrium addition
title_short Correlation between evolution of inclusions and pitting corrosion in 304 stainless steel with yttrium addition
title_sort correlation between evolution of inclusions and pitting corrosion in 304 stainless steel with yttrium addition
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5859157/
https://www.ncbi.nlm.nih.gov/pubmed/29556014
http://dx.doi.org/10.1038/s41598-018-23273-x
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