Electrochemical impedance spectroscopy of PVD-TiN coatings on mild steel and AISI316 substrates

C. Liu; A. Leyland; S. Lyon; A. Matthews

doi:10.1016/0257-8972(95)02545-6

Electrochemical impedance spectroscopy of PVD-TiN coatings on mild steel and AISI316 substrates

C. Liu^*, A. Leyland, S. Lyon, A. Matthews

^*Corresponding author for this work

Materials Engineering

The University of Hull

Research output: Contribution to journal › Article › peer-review

Abstract

The electrochemical and corrosion behavior of PVD-TiN coatings was investigated through electrochemical impedance spectroscopy (EIS) in a 3% NaCl solution. Mild steel (active) and AISI316 stainless steel (passive) substrates were employed. The results indicated that it was possible to follow the corrosion of the active substrate using EIS over a period of 500 h immersion. The AISI316 substrate, however, remained effectively passive for the duration of the experiment. Based on this study, the EIS technique certainly shows promise in assessing the corrosion performance (and the coating quality) of electron-beam plasma-assisted PVD-TiN coatings on active substrates such as mild steel. Its usefulness on passive materials appears more limited, owing to the similarity of the electrochemical impedance response of the coating and substrate.

Original language	English
Pages (from-to)	615-622
Number of pages	8
Journal	Surface and Coatings Technology
Volume	76-77
Issue number	Part 2
DOIs	https://doi.org/10.1016/0257-8972(95)02545-6
Publication status	Published - Dec 1995

Keywords

Corrosion
Electrochemical behavior
Physical vapour deposition
TiN coatings

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10.1016/0257-8972(95)02545-6

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title = "Electrochemical impedance spectroscopy of PVD-TiN coatings on mild steel and AISI316 substrates",

abstract = "The electrochemical and corrosion behavior of PVD-TiN coatings was investigated through electrochemical impedance spectroscopy (EIS) in a 3% NaCl solution. Mild steel (active) and AISI316 stainless steel (passive) substrates were employed. The results indicated that it was possible to follow the corrosion of the active substrate using EIS over a period of 500 h immersion. The AISI316 substrate, however, remained effectively passive for the duration of the experiment. Based on this study, the EIS technique certainly shows promise in assessing the corrosion performance (and the coating quality) of electron-beam plasma-assisted PVD-TiN coatings on active substrates such as mild steel. Its usefulness on passive materials appears more limited, owing to the similarity of the electrochemical impedance response of the coating and substrate.",

keywords = "Corrosion, Electrochemical behavior, Physical vapour deposition, TiN coatings",

author = "C. Liu and A. Leyland and S. Lyon and A. Matthews",

year = "1995",

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TY - JOUR

T1 - Electrochemical impedance spectroscopy of PVD-TiN coatings on mild steel and AISI316 substrates

AU - Liu, C.

AU - Leyland, A.

AU - Lyon, S.

AU - Matthews, A.

PY - 1995/12

Y1 - 1995/12

N2 - The electrochemical and corrosion behavior of PVD-TiN coatings was investigated through electrochemical impedance spectroscopy (EIS) in a 3% NaCl solution. Mild steel (active) and AISI316 stainless steel (passive) substrates were employed. The results indicated that it was possible to follow the corrosion of the active substrate using EIS over a period of 500 h immersion. The AISI316 substrate, however, remained effectively passive for the duration of the experiment. Based on this study, the EIS technique certainly shows promise in assessing the corrosion performance (and the coating quality) of electron-beam plasma-assisted PVD-TiN coatings on active substrates such as mild steel. Its usefulness on passive materials appears more limited, owing to the similarity of the electrochemical impedance response of the coating and substrate.

AB - The electrochemical and corrosion behavior of PVD-TiN coatings was investigated through electrochemical impedance spectroscopy (EIS) in a 3% NaCl solution. Mild steel (active) and AISI316 stainless steel (passive) substrates were employed. The results indicated that it was possible to follow the corrosion of the active substrate using EIS over a period of 500 h immersion. The AISI316 substrate, however, remained effectively passive for the duration of the experiment. Based on this study, the EIS technique certainly shows promise in assessing the corrosion performance (and the coating quality) of electron-beam plasma-assisted PVD-TiN coatings on active substrates such as mild steel. Its usefulness on passive materials appears more limited, owing to the similarity of the electrochemical impedance response of the coating and substrate.

KW - Corrosion

KW - Electrochemical behavior

KW - Physical vapour deposition

KW - TiN coatings

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DO - 10.1016/0257-8972(95)02545-6

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SN - 0257-8972

VL - 76-77

SP - 615

EP - 622

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

IS - Part 2

ER -

Electrochemical impedance spectroscopy of PVD-TiN coatings on mild steel and AISI316 substrates

Abstract

Keywords

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