Characteristics of a plasma electrolytic nitrocarburising treatment for stainless steelsCitation formats

  • External authors:
  • X. Nie
  • C. Tsotsos
  • A. Wilson
  • A. Leyland

Standard

Characteristics of a plasma electrolytic nitrocarburising treatment for stainless steels. / Nie, X.; Tsotsos, C.; Wilson, A.; Yerokhin, A. L.; Leyland, A.; Matthews, A.

In: Surface and Coatings Technology, Vol. 139, No. 2-3, 15.05.2001, p. 135-142.

Research output: Contribution to journalArticlepeer-review

Harvard

Nie, X, Tsotsos, C, Wilson, A, Yerokhin, AL, Leyland, A & Matthews, A 2001, 'Characteristics of a plasma electrolytic nitrocarburising treatment for stainless steels', Surface and Coatings Technology, vol. 139, no. 2-3, pp. 135-142. https://doi.org/10.1016/S0257-8972(01)01025-8

APA

Vancouver

Author

Nie, X. ; Tsotsos, C. ; Wilson, A. ; Yerokhin, A. L. ; Leyland, A. ; Matthews, A. / Characteristics of a plasma electrolytic nitrocarburising treatment for stainless steels. In: Surface and Coatings Technology. 2001 ; Vol. 139, No. 2-3. pp. 135-142.

Bibtex

@article{40beaf18e59a4255bcae93cd87976ecd,
title = "Characteristics of a plasma electrolytic nitrocarburising treatment for stainless steels",
abstract = "In this work, we investigate the feasibility of a plasma electrolytic nitrocarburising (PEN/C) treatment applied to AISI 316 stainless steel using a modified aqueous solution of urea as the treatment electrolyte. The substrate samples were connected cathodically to a high-current DC power supply and biased with a negative voltage in the range 220-260 V. The treatment time was typically in the range of 30-60 s. Investigations of the characteristics of the treated component show that the friction coefficient against a WC-Co ball counterface can be slightly reduced, and that the wear rate decreases by several decades. The microstructure of the treated layers depends strongly on the electrical parameters (e.g. the applied voltage, which controls the treatment temperature) and can be adjusted from a single expanded austenite phase (υN) to multi-phase combinations, including mixtures of Fe(Fe,Cr)2O4, υN, and (Cr,Fe)Nx. The corrosion properties of the treated layers are closely correlated to the microstructure and composition and can be significantly improved, particularly if a thin, but dense, magnetite-based iron-chromium oxide layer is produced at the surface. For improvement of the tribological properties of substrates treated at low temperature, a diamond-like-carbon coating was deposited on the PEN/C pre-treated substrate using a plasma-immersion ion-assisted deposition (PIAD) process. Such duplex treatments show great potential for surface modification of stainless steels for applications in aggressive corrosive-wear environments.",
keywords = "Corrosion, Nitrocaburising, Plasma electrolysis, Stainless steel, Wear",
author = "X. Nie and C. Tsotsos and A. Wilson and Yerokhin, {A. L.} and A. Leyland and A. Matthews",
year = "2001",
month = may,
day = "15",
doi = "10.1016/S0257-8972(01)01025-8",
language = "English",
volume = "139",
pages = "135--142",
journal = "Surface and Coatings Technology",
issn = "0257-8972",
publisher = "Elsevier BV",
number = "2-3",

}

RIS

TY - JOUR

T1 - Characteristics of a plasma electrolytic nitrocarburising treatment for stainless steels

AU - Nie, X.

AU - Tsotsos, C.

AU - Wilson, A.

AU - Yerokhin, A. L.

AU - Leyland, A.

AU - Matthews, A.

PY - 2001/5/15

Y1 - 2001/5/15

N2 - In this work, we investigate the feasibility of a plasma electrolytic nitrocarburising (PEN/C) treatment applied to AISI 316 stainless steel using a modified aqueous solution of urea as the treatment electrolyte. The substrate samples were connected cathodically to a high-current DC power supply and biased with a negative voltage in the range 220-260 V. The treatment time was typically in the range of 30-60 s. Investigations of the characteristics of the treated component show that the friction coefficient against a WC-Co ball counterface can be slightly reduced, and that the wear rate decreases by several decades. The microstructure of the treated layers depends strongly on the electrical parameters (e.g. the applied voltage, which controls the treatment temperature) and can be adjusted from a single expanded austenite phase (υN) to multi-phase combinations, including mixtures of Fe(Fe,Cr)2O4, υN, and (Cr,Fe)Nx. The corrosion properties of the treated layers are closely correlated to the microstructure and composition and can be significantly improved, particularly if a thin, but dense, magnetite-based iron-chromium oxide layer is produced at the surface. For improvement of the tribological properties of substrates treated at low temperature, a diamond-like-carbon coating was deposited on the PEN/C pre-treated substrate using a plasma-immersion ion-assisted deposition (PIAD) process. Such duplex treatments show great potential for surface modification of stainless steels for applications in aggressive corrosive-wear environments.

AB - In this work, we investigate the feasibility of a plasma electrolytic nitrocarburising (PEN/C) treatment applied to AISI 316 stainless steel using a modified aqueous solution of urea as the treatment electrolyte. The substrate samples were connected cathodically to a high-current DC power supply and biased with a negative voltage in the range 220-260 V. The treatment time was typically in the range of 30-60 s. Investigations of the characteristics of the treated component show that the friction coefficient against a WC-Co ball counterface can be slightly reduced, and that the wear rate decreases by several decades. The microstructure of the treated layers depends strongly on the electrical parameters (e.g. the applied voltage, which controls the treatment temperature) and can be adjusted from a single expanded austenite phase (υN) to multi-phase combinations, including mixtures of Fe(Fe,Cr)2O4, υN, and (Cr,Fe)Nx. The corrosion properties of the treated layers are closely correlated to the microstructure and composition and can be significantly improved, particularly if a thin, but dense, magnetite-based iron-chromium oxide layer is produced at the surface. For improvement of the tribological properties of substrates treated at low temperature, a diamond-like-carbon coating was deposited on the PEN/C pre-treated substrate using a plasma-immersion ion-assisted deposition (PIAD) process. Such duplex treatments show great potential for surface modification of stainless steels for applications in aggressive corrosive-wear environments.

KW - Corrosion

KW - Nitrocaburising

KW - Plasma electrolysis

KW - Stainless steel

KW - Wear

UR - http://www.scopus.com/inward/record.url?scp=0035873914&partnerID=8YFLogxK

U2 - 10.1016/S0257-8972(01)01025-8

DO - 10.1016/S0257-8972(01)01025-8

M3 - Article

AN - SCOPUS:0035873914

VL - 139

SP - 135

EP - 142

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

SN - 0257-8972

IS - 2-3

ER -