Effect of high-density current electropulsing on corrosion cracking of titanium aluminide intermetallic

Anatolii Babutskyi; Andreas Chrysanthou; Ganna Chyzhyk; Maider G. de Cortazar; Pedro Egizabal; Marija Smelina

doi:10.1002/maco.202012253

Effect of high-density current electropulsing on corrosion cracking of titanium aluminide intermetallic

Anatolii Babutskyi, Andreas Chrysanthou, Ganna Chyzhyk, Maider G. de Cortazar, Pedro Egizabal, Marija Smelina

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Abstract

The effect of electropulsing on the corrosion cracking of titanium aluminide produced by self-propagating high-temperature synthesis has been investigated. The electropulsing treatment led to improved corrosion resistance in sodium fluoride solution and also eliminated corrosion cracking at the α2/γ interface during corrosion in a solution of nitric and hydrofluoric acids. This behavior was attributed to thermal and athermal effects resulting from electropulsing and leading to the interaction of conduction electrons with the defect structure. The effect of magnetic field accompanying electropusling on depinning of dislocations also has been discussed. Support for this is provided on the basis of X-ray diffraction analysis and microhardness testing.

Original language	English
Pages (from-to)	1243-1248
Number of pages	6
Journal	Materials and Corrosion
Volume	72
Issue number	7
Early online date	5 Feb 2021
DOIs	https://doi.org/10.1002/maco.202012253
Publication status	Published - 31 Jul 2021

Keywords

corrosion
corrosion cracking
electropulsing
residual stress
titanium aluminide intermetallic

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© 2021 Wiley-VCH GmbH. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1002/maco.202012253
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title = "Effect of high-density current electropulsing on corrosion cracking of titanium aluminide intermetallic",

abstract = "The effect of electropulsing on the corrosion cracking of titanium aluminide produced by self-propagating high-temperature synthesis has been investigated. The electropulsing treatment led to improved corrosion resistance in sodium fluoride solution and also eliminated corrosion cracking at the α2/γ interface during corrosion in a solution of nitric and hydrofluoric acids. This behavior was attributed to thermal and athermal effects resulting from electropulsing and leading to the interaction of conduction electrons with the defect structure. The effect of magnetic field accompanying electropusling on depinning of dislocations also has been discussed. Support for this is provided on the basis of X-ray diffraction analysis and microhardness testing.",

keywords = "corrosion, corrosion cracking, electropulsing, residual stress, titanium aluminide intermetallic",

author = "Anatolii Babutskyi and Andreas Chrysanthou and Ganna Chyzhyk and {de Cortazar}, {Maider G.} and Pedro Egizabal and Marija Smelina",

note = "{\textcopyright} 2021 Wiley-VCH GmbH. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1002/maco.202012253 Funding Information: This study was supported by the Marie Curie International Incoming Fellowship scheme within the 7th European Community Framework Programme Grant number PIIF-GA-2010-274324. Funding Information: This study was supported by the Marie Curie International Incoming Fellowship scheme within the 7th European Community Framework Programme Grant number PIIF‐GA‐2010‐274324. Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH.",

year = "2021",

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doi = "10.1002/maco.202012253",

language = "English",

volume = "72",

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T1 - Effect of high-density current electropulsing on corrosion cracking of titanium aluminide intermetallic

AU - Babutskyi, Anatolii

AU - Chrysanthou, Andreas

AU - Chyzhyk, Ganna

AU - de Cortazar, Maider G.

AU - Egizabal, Pedro

AU - Smelina, Marija

N1 - © 2021 Wiley-VCH GmbH. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1002/maco.202012253 Funding Information: This study was supported by the Marie Curie International Incoming Fellowship scheme within the 7th European Community Framework Programme Grant number PIIF-GA-2010-274324. Funding Information: This study was supported by the Marie Curie International Incoming Fellowship scheme within the 7th European Community Framework Programme Grant number PIIF‐GA‐2010‐274324. Publisher Copyright: © 2021 Wiley-VCH GmbH.

PY - 2021/7/31

Y1 - 2021/7/31

N2 - The effect of electropulsing on the corrosion cracking of titanium aluminide produced by self-propagating high-temperature synthesis has been investigated. The electropulsing treatment led to improved corrosion resistance in sodium fluoride solution and also eliminated corrosion cracking at the α2/γ interface during corrosion in a solution of nitric and hydrofluoric acids. This behavior was attributed to thermal and athermal effects resulting from electropulsing and leading to the interaction of conduction electrons with the defect structure. The effect of magnetic field accompanying electropusling on depinning of dislocations also has been discussed. Support for this is provided on the basis of X-ray diffraction analysis and microhardness testing.

AB - The effect of electropulsing on the corrosion cracking of titanium aluminide produced by self-propagating high-temperature synthesis has been investigated. The electropulsing treatment led to improved corrosion resistance in sodium fluoride solution and also eliminated corrosion cracking at the α2/γ interface during corrosion in a solution of nitric and hydrofluoric acids. This behavior was attributed to thermal and athermal effects resulting from electropulsing and leading to the interaction of conduction electrons with the defect structure. The effect of magnetic field accompanying electropusling on depinning of dislocations also has been discussed. Support for this is provided on the basis of X-ray diffraction analysis and microhardness testing.

KW - corrosion

KW - corrosion cracking

KW - electropulsing

KW - residual stress

KW - titanium aluminide intermetallic

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DO - 10.1002/maco.202012253

M3 - Article

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SN - 0947-5117

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EP - 1248

JO - Materials and Corrosion

JF - Materials and Corrosion

IS - 7

ER -

Effect of high-density current electropulsing on corrosion cracking of titanium aluminide intermetallic

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