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

Anatolii Babutskyi; Andreas Chrysanthou; Ganna Chyzhyk; Maider García de Cortázar; 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 García de Cortázar, Pedro Egizabal, Marija Smelina

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

2 Citations (Scopus)

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 - Werkstoffe und Korrosion
Volume	72
Issue number	7
DOIs	https://doi.org/10.1002/maco.202012253
Publication status	Published - Jul 2021

Keywords

corrosion
corrosion cracking
electropulsing
residual stress
titanium aluminide intermetallic

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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.",

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author = "Anatolii Babutskyi and Andreas Chrysanthou and Ganna Chyzhyk and {de Cort{\'a}zar}, {Maider Garc{\'i}a} and Pedro Egizabal and Marija Smelina",

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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 Cortázar, Maider García

AU - Egizabal, Pedro

AU - Smelina, Marija

PY - 2021/7

Y1 - 2021/7

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

AN - SCOPUS:85100516176

SN - 0947-5117

VL - 72

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EP - 1248

JO - Materials and Corrosion - Werkstoffe und Korrosion

JF - Materials and Corrosion - Werkstoffe und Korrosion

IS - 7

ER -

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

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