Corrosion behaviour of laser gas nitrided Ti-6Al-4V in HCl solution

R. Sh Razavi; M. Salehi; M. Ramazani; H. C. Man

doi:10.1016/j.corsci.2009.06.016

Corrosion behaviour of laser gas nitrided Ti-6Al-4V in HCl solution

R. Sh Razavi^*
, M. Salehi
, M. Ramazani
, H. C. Man

^*Corresponding author for this work

Research output: Journal Publication › Article › peer-review

57 Citations (Scopus)

Abstract

Laser surface nitriding of Ti-6Al-4V alloy was carried out with a Nd:YAG pulsed laser. The microstructure and corrosion behaviour of the nitrided samples were examined, using SEM, XRD, XPS, and anodic polarization tests in 2 M HCl solution. Laser nitriding produced a thin continuous TiN layer followed by TiN dendrites and TiN_0.3 needles. The laser nitrided specimen exhibited less corrosion current density, passivated more readily and also, maintained a lower current density over the duration of the experiment. This was correlated with the formation of very thin, continuous TiN_xO_y film, which could retard chloride ions ingress into the substrate.

Original language	English
Pages (from-to)	2324-2329
Number of pages	6
Journal	Corrosion Science
Volume	51
Issue number	10
DOIs	https://doi.org/10.1016/j.corsci.2009.06.016
Publication status	Published - Oct 2009
Externally published	Yes

Free Keywords

A. Titanium
B. Polarization
B. XPS
C. Passive films

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

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10.1016/j.corsci.2009.06.016

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title = "Corrosion behaviour of laser gas nitrided Ti-6Al-4V in HCl solution",

abstract = "Laser surface nitriding of Ti-6Al-4V alloy was carried out with a Nd:YAG pulsed laser. The microstructure and corrosion behaviour of the nitrided samples were examined, using SEM, XRD, XPS, and anodic polarization tests in 2 M HCl solution. Laser nitriding produced a thin continuous TiN layer followed by TiN dendrites and TiN0.3 needles. The laser nitrided specimen exhibited less corrosion current density, passivated more readily and also, maintained a lower current density over the duration of the experiment. This was correlated with the formation of very thin, continuous TiNxOy film, which could retard chloride ions ingress into the substrate.",

keywords = "A. Titanium, B. Polarization, B. XPS, C. Passive films",

author = "Razavi, \{R. Sh\} and M. Salehi and M. Ramazani and Man, \{H. C.\}",

year = "2009",

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doi = "10.1016/j.corsci.2009.06.016",

language = "English",

volume = "51",

pages = "2324--2329",

journal = "Corrosion Science",

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TY - JOUR

T1 - Corrosion behaviour of laser gas nitrided Ti-6Al-4V in HCl solution

AU - Razavi, R. Sh

AU - Salehi, M.

AU - Ramazani, M.

AU - Man, H. C.

PY - 2009/10

Y1 - 2009/10

N2 - Laser surface nitriding of Ti-6Al-4V alloy was carried out with a Nd:YAG pulsed laser. The microstructure and corrosion behaviour of the nitrided samples were examined, using SEM, XRD, XPS, and anodic polarization tests in 2 M HCl solution. Laser nitriding produced a thin continuous TiN layer followed by TiN dendrites and TiN0.3 needles. The laser nitrided specimen exhibited less corrosion current density, passivated more readily and also, maintained a lower current density over the duration of the experiment. This was correlated with the formation of very thin, continuous TiNxOy film, which could retard chloride ions ingress into the substrate.

AB - Laser surface nitriding of Ti-6Al-4V alloy was carried out with a Nd:YAG pulsed laser. The microstructure and corrosion behaviour of the nitrided samples were examined, using SEM, XRD, XPS, and anodic polarization tests in 2 M HCl solution. Laser nitriding produced a thin continuous TiN layer followed by TiN dendrites and TiN0.3 needles. The laser nitrided specimen exhibited less corrosion current density, passivated more readily and also, maintained a lower current density over the duration of the experiment. This was correlated with the formation of very thin, continuous TiNxOy film, which could retard chloride ions ingress into the substrate.

KW - A. Titanium

KW - B. Polarization

KW - B. XPS

KW - C. Passive films

UR - https://www.scopus.com/pages/publications/69449093927

U2 - 10.1016/j.corsci.2009.06.016

DO - 10.1016/j.corsci.2009.06.016

M3 - Article

AN - SCOPUS:69449093927

SN - 0010-938X

VL - 51

SP - 2324

EP - 2329

JO - Corrosion Science

JF - Corrosion Science

IS - 10

ER -

Corrosion behaviour of laser gas nitrided Ti-6Al-4V in HCl solution

Abstract

Free Keywords

ASJC Scopus subject areas

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