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 languageEnglish
JournalApplied Surface Science
Volume431
Pages (from-to)24-31
ISSN0169-4332
DOIs
Publication statusPublished - 2018

Keywords

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

Cite this

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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",
issn = "0169-4332",
publisher = "Elsevier",

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TY - JOUR

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

VL - 431

SP - 24

EP - 31

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

ER -