INVESTIGATION OF THE MAGNETIC PHASE-TRANSITION IN CHROMIUM-ALLOY USING ELECTROCHEMICAL TECHNIQUES

The magnetic phase transition of chromium-0.2 at.% vanadium alloy was investigated using electrochemical methods. The temperature dependence of the potentiodynamic and open circuit potential data shows an anoma lous behaviour close to the Neel temperature. This anomaly closely fol lows the shift of the Neel temperature due to alloying with vanadium. The transition is suppressed when the alloy is anodically oxidized, th erefore the anomalies observed in the electrochemical parameters must be caused by the magnetic phase transition in the alloy itself. Electr ochemical parameters, such as peak current density and zero-current po tential, also present either distinct temperature dependences above an d below the Neel temperature or anomalies around it.