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

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URI: http://hdl.handle.net/11556/1135
ISSN: 0947-5117
ESSN: 1521-4176
DOI: 10.1002/maco.202012253
Publication date
2021-02-05
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Wiley-VCH Verlag
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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.
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Corrosion , Corrosion cracking , Electropulsing , Residual stress , Titanium aluminide intermetallic
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journal article
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Babutskyi, Anatolii, Andreas Chrysanthou, Ganna Chyzhyk, Maider García Cortázar, Pedro Egizabal, and Marija Smelina. “Effect of High‐density Current Electropulsing on Corrosion Cracking of Titanium Aluminide Intermetallic.” Materials and Corrosion (February 5, 2021). doi:10.1002/maco.202012253.