Increase the Deformability of NiCo Single Crystals Using of Electrical Pulse-Like Currents

The effect of short-term electrical pulses on metallic single crystals, with and without the application of external mechanical stresses, was investigated with the aid of deformation reliefs. The nickel-cobalt single crystals were subjected to electrical pulses and subsequently microscopically measu...

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Bibliographic Details
Published in:Key engineering materials 2012-02, Vol.504-506, p.143-148, Article 143
Main Authors: Bierbaum, Marten Sebastian, Nowak, Marc, Schaper, Mirko, Zhuravina, Tatjana, Bach, Friedrich Wilhelm, Gerstein, Gregory
Format: Article
Language:English
Subjects:
Deformation
Flow stress
Formability
Nickel
Single crystals
Stresses
Yield strength
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Summary:The effect of short-term electrical pulses on metallic single crystals, with and without the application of external mechanical stresses, was investigated with the aid of deformation reliefs. The nickel-cobalt single crystals were subjected to electrical pulses and subsequently microscopically measured. In doing this, it was established that an electrical pulse without a simultaneously applied mechanical stress, has no influence on the deformation relief. It was possible to show that on loading the single crystal with a mechanical stress, the deformation relief significantly changes even when the stress was markedly below the flow stress.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.504-506.143