The Effect of Natural Ageing of Quickly Quenched Amorphous  Fe₇₅Si₁₂B₁₀Nb₁Cu₂ Alloys on Their Corrosion Behavior sin Acidic Sulfate Environments

V. G. Makletsov¹ and O. M. Kanunnikova²

¹Udmurt State University, ul. Universitetskaya 1, Izhevsk, 426034 Udmurtia, Russia

² Physical-Technical Institute, Ural Branch, Russian Academy of Sciences, ul. Kirova 132, Izhevsk 426000, Udmurtia, Russia

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Received April 18, 2007

Abstract — The effect of natural ageing on the electrochemical and corrosion behavior of an amorphous Fe₇₅Si₁₂B₁₀Nb₁Cu alloy in acidic sulfate environments is studied. In its shape, the polarization curve is similar to that of the alloy, which was heat treated at 400C. The ageing made the alloy brittle and unable to be soldered with acidic fluxes.