Effect of iron content and annealing temperature on the corrosion behavior of Ni sub 100-x Fe sub x

Ni sub 100-x Fe sub x metallic glasses have been prepared with 8.5 < =x < =51 using electrodeposition technique. Corrosion behavior of specimens in 0.1 M Na sub 2 SO sub 4 (pH=6) at 25 deg c has been studied using potential-time decay, linear polarization resistance and potentiodynamic techniq...

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Bibliographic Details
Published in:Journal of materials science 1999-06, Vol.34 (12), p.2971-2978
Main Authors: El-Wahidy, E F, Abou-Aly, A I, Gomaa, N G, Abaza, S F
Format: Article
Language:English
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Summary:Ni sub 100-x Fe sub x metallic glasses have been prepared with 8.5 < =x < =51 using electrodeposition technique. Corrosion behavior of specimens in 0.1 M Na sub 2 SO sub 4 (pH=6) at 25 deg c has been studied using potential-time decay, linear polarization resistance and potentiodynamic techniques. Anodic polarization curves show that the specimens exhibit quasi-passive region. The dissolution of samples increases with the increase of iron concentration and also with the increase of annealing temperature. The interpretation was based on the enhanced dissolution of the formed microcrystals of the specimens in the sulphate solution.
ISSN:0022-2461