High temperature solution-nitriding and low-temperature nitriding of AISI 316: Effect on pitting potential and crevice corrosion performance

Federico Bottoli; Morten Stendahl Jellesen; Thomas Lundin Christiansen; Grethe Winther; Marcel A. J. Somers

doi:10.1016/j.apsusc.2017.06.094

High temperature solution-nitriding and low-temperature nitriding of AISI 316: Effect on pitting potential and crevice corrosion performance

Federico Bottoli, Morten Stendahl Jellesen, Thomas Lundin Christiansen, Grethe Winther, Marcel A. J. Somers^*

^*Corresponding author for this work

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Abstract

Stainless steels grade AISI 316 was subjected to high temperature solution nitriding and low-temperature nitriding in order to dissolve various amounts of nitrogen in the bulk (up to approx. 0.45wt%) and in a surface layer (up to approx. 13wt%), respectively. Potentiodynamic polarization tests in a 0.1M NaCl solution and crevice corrosion immersion tests in 3wt% FeCl3 solution were studied before and after the bulk and surface treatments.Nitrogen addition in the bulk proved to have a beneficial effect on the pitting resistance of the alloy. The formation of a zone of expanded austenite at the material surface through low-temperature nitriding resulted in a considerable improvement of the pitting potential and the crevice corrosion performance of the steels.

Original language	English
Journal	Applied Surface Science
Volume	431
Pages (from-to)	24-31
ISSN	0169-4332
DOIs	https://doi.org/10.1016/j.apsusc.2017.06.094
Publication status	Published - 2018

Keywords

Corrosion
Crevice corrosion
Expanded austenite
High nitrogen steel
High-temperature solution nitriding
Low-temperature nitriding
Pitting

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title = "High temperature solution-nitriding and low-temperature nitriding of AISI 316: Effect on pitting potential and crevice corrosion performance",

abstract = "Stainless steels grade AISI 316 was subjected to high temperature solution nitriding and low-temperature nitriding in order to dissolve various amounts of nitrogen in the bulk (up to approx. 0.45wt%) and in a surface layer (up to approx. 13wt%), respectively. Potentiodynamic polarization tests in a 0.1M NaCl solution and crevice corrosion immersion tests in 3wt% FeCl3 solution were studied before and after the bulk and surface treatments.Nitrogen addition in the bulk proved to have a beneficial effect on the pitting resistance of the alloy. The formation of a zone of expanded austenite at the material surface through low-temperature nitriding resulted in a considerable improvement of the pitting potential and the crevice corrosion performance of the steels.",

keywords = "Corrosion, Crevice corrosion, Expanded austenite, High nitrogen steel, High-temperature solution nitriding, Low-temperature nitriding, Pitting",

author = "Federico Bottoli and Jellesen, {Morten Stendahl} and Christiansen, {Thomas Lundin} and Grethe Winther and Somers, {Marcel A. J.}",

year = "2018",

doi = "10.1016/j.apsusc.2017.06.094",

language = "English",

volume = "431",

pages = "24--31",

journal = "Applied Surface Science",

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T1 - High temperature solution-nitriding and low-temperature nitriding of AISI 316: Effect on pitting potential and crevice corrosion performance

AU - Bottoli, Federico

AU - Jellesen, Morten Stendahl

AU - Christiansen, Thomas Lundin

AU - Winther, Grethe

AU - Somers, Marcel A. J.

PY - 2018

Y1 - 2018

N2 - Stainless steels grade AISI 316 was subjected to high temperature solution nitriding and low-temperature nitriding in order to dissolve various amounts of nitrogen in the bulk (up to approx. 0.45wt%) and in a surface layer (up to approx. 13wt%), respectively. Potentiodynamic polarization tests in a 0.1M NaCl solution and crevice corrosion immersion tests in 3wt% FeCl3 solution were studied before and after the bulk and surface treatments.Nitrogen addition in the bulk proved to have a beneficial effect on the pitting resistance of the alloy. The formation of a zone of expanded austenite at the material surface through low-temperature nitriding resulted in a considerable improvement of the pitting potential and the crevice corrosion performance of the steels.

AB - Stainless steels grade AISI 316 was subjected to high temperature solution nitriding and low-temperature nitriding in order to dissolve various amounts of nitrogen in the bulk (up to approx. 0.45wt%) and in a surface layer (up to approx. 13wt%), respectively. Potentiodynamic polarization tests in a 0.1M NaCl solution and crevice corrosion immersion tests in 3wt% FeCl3 solution were studied before and after the bulk and surface treatments.Nitrogen addition in the bulk proved to have a beneficial effect on the pitting resistance of the alloy. The formation of a zone of expanded austenite at the material surface through low-temperature nitriding resulted in a considerable improvement of the pitting potential and the crevice corrosion performance of the steels.

KW - Corrosion

KW - Crevice corrosion

KW - Expanded austenite

KW - High nitrogen steel

KW - High-temperature solution nitriding

KW - Low-temperature nitriding

KW - Pitting

U2 - 10.1016/j.apsusc.2017.06.094

DO - 10.1016/j.apsusc.2017.06.094

M3 - Journal article

SN - 0169-4332

VL - 431

SP - 24

EP - 31

JO - Applied Surface Science

JF - Applied Surface Science

ER -

High temperature solution-nitriding and low-temperature nitriding of AISI 316: Effect on pitting potential and crevice corrosion performance

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Keywords

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