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

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        Author
        Babutskyi, Anatolii
        Chrysanthou, Andreas
        Chyzhyk, Ganna
        de Cortazar, Maider G.
        Egizabal, Pedro
        Smelina, Marija
        Attention
        2299/24554
        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.
        Publication date
        2021-02-05
        Published in
        Materials and Corrosion
        Published version
        https://doi.org/10.1002/maco.202012253
        License
        Unspecified
        Other links
        http://hdl.handle.net/2299/24554
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