A XPS study of the Mo effect on passivation behaviors for highly controlled stainless steels in neutral and alkaline conditions

Thiago J. Mesquita; Eric Chauveau; Marc Mantel; Ricardo P. Nogueira

doi:10.1016/j.apsusc.2012.12.118

A XPS study of the Mo effect on passivation behaviors for highly controlled stainless steels in neutral and alkaline conditions

Thiago J. Mesquita, Eric Chauveau, Marc Mantel, Ricardo P. Nogueira

Chemical and Petroleum Engineering

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88 Scopus citations

Abstract

The objective of this work is to study the effect of Mo additions on film passive properties of three different stainless steels (SS) types (austenitic, ferritic and duplex alloys). A comparison between Mo containing (3 wt% Mo) and free Mo (0 wt% Mo) grades of highly controlled laboratory heats was done considering their passive film formed in different aggressive conditions, from neutral to alkaline pH. The presence of oxidized Mo on the passive layer was confirmed by X-ray photoelectron Spectroscopy (XPS). The presence of Mo within the passive film improved the passivity breakdown potential for the duplex and ferritic SS, but seemed to have no effect for austenitic SS.

Original language	British English
Pages (from-to)	90-97
Number of pages	8
Journal	Applied Surface Science
Volume	270
DOIs	https://doi.org/10.1016/j.apsusc.2012.12.118
State	Published - 1 Apr 2013

Keywords

Corrosion
Molybdenum
Passive Layer
Stainless Steels

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10.1016/j.apsusc.2012.12.118

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title = "A XPS study of the Mo effect on passivation behaviors for highly controlled stainless steels in neutral and alkaline conditions",

abstract = "The objective of this work is to study the effect of Mo additions on film passive properties of three different stainless steels (SS) types (austenitic, ferritic and duplex alloys). A comparison between Mo containing (3 wt% Mo) and free Mo (0 wt% Mo) grades of highly controlled laboratory heats was done considering their passive film formed in different aggressive conditions, from neutral to alkaline pH. The presence of oxidized Mo on the passive layer was confirmed by X-ray photoelectron Spectroscopy (XPS). The presence of Mo within the passive film improved the passivity breakdown potential for the duplex and ferritic SS, but seemed to have no effect for austenitic SS.",

keywords = "Corrosion, Molybdenum, Passive Layer, Stainless Steels",

author = "Mesquita, {Thiago J.} and Eric Chauveau and Marc Mantel and Nogueira, {Ricardo P.}",

note = "Funding Information: The authors wish to thank the International Molybdenum Association – IMOA for financial and technical support of this project. The authors would also like to acknowledge Nicole Kinsman and Gregory Bethom{\'e} for their valuable technical contribution in this project.",

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AU - Mesquita, Thiago J.

AU - Chauveau, Eric

AU - Mantel, Marc

AU - Nogueira, Ricardo P.

N1 - Funding Information: The authors wish to thank the International Molybdenum Association – IMOA for financial and technical support of this project. The authors would also like to acknowledge Nicole Kinsman and Gregory Bethomé for their valuable technical contribution in this project.

PY - 2013/4/1

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N2 - The objective of this work is to study the effect of Mo additions on film passive properties of three different stainless steels (SS) types (austenitic, ferritic and duplex alloys). A comparison between Mo containing (3 wt% Mo) and free Mo (0 wt% Mo) grades of highly controlled laboratory heats was done considering their passive film formed in different aggressive conditions, from neutral to alkaline pH. The presence of oxidized Mo on the passive layer was confirmed by X-ray photoelectron Spectroscopy (XPS). The presence of Mo within the passive film improved the passivity breakdown potential for the duplex and ferritic SS, but seemed to have no effect for austenitic SS.

AB - The objective of this work is to study the effect of Mo additions on film passive properties of three different stainless steels (SS) types (austenitic, ferritic and duplex alloys). A comparison between Mo containing (3 wt% Mo) and free Mo (0 wt% Mo) grades of highly controlled laboratory heats was done considering their passive film formed in different aggressive conditions, from neutral to alkaline pH. The presence of oxidized Mo on the passive layer was confirmed by X-ray photoelectron Spectroscopy (XPS). The presence of Mo within the passive film improved the passivity breakdown potential for the duplex and ferritic SS, but seemed to have no effect for austenitic SS.

KW - Corrosion

KW - Molybdenum

KW - Passive Layer

KW - Stainless Steels

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DO - 10.1016/j.apsusc.2012.12.118

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SP - 90

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JO - Applied Surface Science

JF - Applied Surface Science

ER -

A XPS study of the Mo effect on passivation behaviors for highly controlled stainless steels in neutral and alkaline conditions

Abstract

Keywords

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