Effects of Nitrogen and Tensile Direction on Stress Corrosion Cracking Susceptibility of Ni-Free FeCrMnC-Based Duplex Stainless Steels

Stress corrosion cracking (SCC) behavior of Ni-free duplex stainless steels containing N and C (Fe(balance)-19Cr-8Mn-0.25C-(0.03, 0.21)N, in wt %) was investigated by using a slow strain rate test (SSRT) in air and aqueous NaCl solution with different tensile directions, including parallel (longitud...

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Autores principales: Ha, Heon-Young, Lee, Chang-Hoon, Lee, Tae-Ho, Kim, Sangshik
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5503365/
https://www.ncbi.nlm.nih.gov/pubmed/28772651
http://dx.doi.org/10.3390/ma10030294
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author Ha, Heon-Young
Lee, Chang-Hoon
Lee, Tae-Ho
Kim, Sangshik
author_facet Ha, Heon-Young
Lee, Chang-Hoon
Lee, Tae-Ho
Kim, Sangshik
author_sort Ha, Heon-Young
collection PubMed
description Stress corrosion cracking (SCC) behavior of Ni-free duplex stainless steels containing N and C (Fe(balance)-19Cr-8Mn-0.25C-(0.03, 0.21)N, in wt %) was investigated by using a slow strain rate test (SSRT) in air and aqueous NaCl solution with different tensile directions, including parallel (longitudinal) and perpendicular (transverse) to the rolling direction. It was found that alloying N was effective in increasing the resistance to SCC, while it was higher along the longitudinal direction than the transverse direction. The SCC susceptibility of the two alloys was assessed based on the electrochemical resistance to pitting corrosion, the corrosion morphology, and the fractographic analysis.
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spelling pubmed-55033652017-07-28 Effects of Nitrogen and Tensile Direction on Stress Corrosion Cracking Susceptibility of Ni-Free FeCrMnC-Based Duplex Stainless Steels Ha, Heon-Young Lee, Chang-Hoon Lee, Tae-Ho Kim, Sangshik Materials (Basel) Article Stress corrosion cracking (SCC) behavior of Ni-free duplex stainless steels containing N and C (Fe(balance)-19Cr-8Mn-0.25C-(0.03, 0.21)N, in wt %) was investigated by using a slow strain rate test (SSRT) in air and aqueous NaCl solution with different tensile directions, including parallel (longitudinal) and perpendicular (transverse) to the rolling direction. It was found that alloying N was effective in increasing the resistance to SCC, while it was higher along the longitudinal direction than the transverse direction. The SCC susceptibility of the two alloys was assessed based on the electrochemical resistance to pitting corrosion, the corrosion morphology, and the fractographic analysis. MDPI 2017-03-15 /pmc/articles/PMC5503365/ /pubmed/28772651 http://dx.doi.org/10.3390/ma10030294 Text en © 2017 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ha, Heon-Young
Lee, Chang-Hoon
Lee, Tae-Ho
Kim, Sangshik
Effects of Nitrogen and Tensile Direction on Stress Corrosion Cracking Susceptibility of Ni-Free FeCrMnC-Based Duplex Stainless Steels
title Effects of Nitrogen and Tensile Direction on Stress Corrosion Cracking Susceptibility of Ni-Free FeCrMnC-Based Duplex Stainless Steels
title_full Effects of Nitrogen and Tensile Direction on Stress Corrosion Cracking Susceptibility of Ni-Free FeCrMnC-Based Duplex Stainless Steels
title_fullStr Effects of Nitrogen and Tensile Direction on Stress Corrosion Cracking Susceptibility of Ni-Free FeCrMnC-Based Duplex Stainless Steels
title_full_unstemmed Effects of Nitrogen and Tensile Direction on Stress Corrosion Cracking Susceptibility of Ni-Free FeCrMnC-Based Duplex Stainless Steels
title_short Effects of Nitrogen and Tensile Direction on Stress Corrosion Cracking Susceptibility of Ni-Free FeCrMnC-Based Duplex Stainless Steels
title_sort effects of nitrogen and tensile direction on stress corrosion cracking susceptibility of ni-free fecrmnc-based duplex stainless steels
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5503365/
https://www.ncbi.nlm.nih.gov/pubmed/28772651
http://dx.doi.org/10.3390/ma10030294
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