Thermodynamic analysis of corrosion of carbides of titanium, niobium and tungsten

Krishnan Kannoorpatti; Varmaa Marimuthu; Isabelle  Dulac

Thermodynamic analysis of corrosion of carbides of titanium, niobium and tungsten

Krishnan Kannoorpatti, Varmaa Marimuthu, Isabelle Dulac

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper published in Proceedings › peer-review

Abstract

The Pourbaix diagrams also known as the E-pH diagrams were constructed for hardfacing alloys based on titanium carbide (TiC), niobium carbide (NbC) and tungsten carbides (W2C and WC) at 298K (25oC). Using the thermodynamic data available for the main species at 298K (25oC), Pourbaix diagrams for all these carbides are constructed at a concentration of 10-6M of aqueous species. It was found that the stability of carbides is described only by the immune region of the Pourbaix diagram for carbides. Although passive region has been included in the study, it was unclear from literature if there was a passive film or how protective it was.

Original language	English
Title of host publication	Proceedings of the MISE Conference
Place of Publication	Brisbane, Australia
Publisher	Materials Forum
Publication status	Published - 2015
Event	Materials Innovations in Surface Engineering 2015 - Queensland University of Technology, Brisbane, Australia Duration: 24 Nov 2015 → 26 Nov 2015 http://www.materialsaustralia.com.au/mise-conference/home

Conference

Conference	Materials Innovations in Surface Engineering 2015
Abbreviated title	MISE 2015
Country/Territory	Australia
City	Brisbane
Period	24/11/15 → 26/11/15
Internet address	http://www.materialsaustralia.com.au/mise-conference/home

Cite this

@inproceedings{e7420b90988147cf8018aed8eb18afcf,

title = "Thermodynamic analysis of corrosion of carbides of titanium, niobium and tungsten",

abstract = "The Pourbaix diagrams also known as the E-pH diagrams were constructed for hardfacing alloys based on titanium carbide (TiC), niobium carbide (NbC) and tungsten carbides (W2C and WC) at 298K (25oC). Using the thermodynamic data available for the main species at 298K (25oC), Pourbaix diagrams for all these carbides are constructed at a concentration of 10-6M of aqueous species. It was found that the stability of carbides is described only by the immune region of the Pourbaix diagram for carbides. Although passive region has been included in the study, it was unclear from literature if there was a passive film or how protective it was. ",

keywords = "Titanium Carbides, Niobium Carbides, Tungsten Carbides, Pourbaix diagrams, hardfacing, corrosion, mining",

author = "Krishnan Kannoorpatti and Varmaa Marimuthu and Isabelle Dulac",

year = "2015",

language = "English",

booktitle = "Proceedings of the MISE Conference",

publisher = "Materials Forum",

note = "Materials Innovations in Surface Engineering 2015, MISE 2015 ; Conference date: 24-11-2015 Through 26-11-2015",

url = "http://www.materialsaustralia.com.au/mise-conference/home",

}

TY - GEN

T1 - Thermodynamic analysis of corrosion of carbides of titanium, niobium and tungsten

AU - Kannoorpatti, Krishnan

AU - Marimuthu, Varmaa

AU - Dulac, Isabelle

PY - 2015

Y1 - 2015

N2 - The Pourbaix diagrams also known as the E-pH diagrams were constructed for hardfacing alloys based on titanium carbide (TiC), niobium carbide (NbC) and tungsten carbides (W2C and WC) at 298K (25oC). Using the thermodynamic data available for the main species at 298K (25oC), Pourbaix diagrams for all these carbides are constructed at a concentration of 10-6M of aqueous species. It was found that the stability of carbides is described only by the immune region of the Pourbaix diagram for carbides. Although passive region has been included in the study, it was unclear from literature if there was a passive film or how protective it was.

AB - The Pourbaix diagrams also known as the E-pH diagrams were constructed for hardfacing alloys based on titanium carbide (TiC), niobium carbide (NbC) and tungsten carbides (W2C and WC) at 298K (25oC). Using the thermodynamic data available for the main species at 298K (25oC), Pourbaix diagrams for all these carbides are constructed at a concentration of 10-6M of aqueous species. It was found that the stability of carbides is described only by the immune region of the Pourbaix diagram for carbides. Although passive region has been included in the study, it was unclear from literature if there was a passive film or how protective it was.

KW - Titanium Carbides

KW - Niobium Carbides

KW - Tungsten Carbides

KW - Pourbaix diagrams

KW - hardfacing

KW - corrosion

KW - mining

UR - http://www.materialsaustralia.com.au/mise-conference/home

M3 - Conference Paper published in Proceedings

BT - Proceedings of the MISE Conference

PB - Materials Forum

CY - Brisbane, Australia

T2 - Materials Innovations in Surface Engineering 2015

Y2 - 24 November 2015 through 26 November 2015

ER -

Thermodynamic analysis of corrosion of carbides of titanium, niobium and tungsten

Abstract

Conference

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