Archivio Istituzionale della RicercaThe influence of heat treatments on the anodic behaviour and on the structure of Fe34Ni36Cr10P14B6 amorphous alloy, in 1 N H2SO4 and 1 N HCl solutions, has been studied by standard electrochemical techniques associated with X-ray diffraction analysis, differential scanning calorimetry and Auger electron spectroscopy. The as-quenched amorphous alloy displays very good corrosion performance in the testing environments. Heat treatments (from 150 to 500°C) induce structural relaxation processes and the amorphous to crystalline transition, thus bringing about contrasting effects on the corrosion resistance of the material. A superior performance has been observed in specimens annealed for 2 h at 350°C. The presence of an oxide surface layer is revealed by AES. A detailed analysis of the influence of structural and compositional aspects is given.
Structural aspects and the anodic behaviour of Fe34Ni36Cr10P14B6 amorphous alloy submitted to different heat treatments / S. M., Gravano; S., Torchio; Angelini, EMMA PAOLA MARIA VIRGINIA; R., CRISTINA REGGIANI; F., Mazza. - In: CORROSION SCIENCE. - ISSN 0010-938X. - STAMPA. - 32:5/6(1991), pp. 509-519. [10.1002/chin.199125023]
Structural aspects and the anodic behaviour of Fe34Ni36Cr10P14B6 amorphous alloy submitted to different heat treatments
ANGELINI, EMMA PAOLA MARIA VIRGINIA;
1991
Abstract
The influence of heat treatments on the anodic behaviour and on the structure of Fe34Ni36Cr10P14B6 amorphous alloy, in 1 N H2SO4 and 1 N HCl solutions, has been studied by standard electrochemical techniques associated with X-ray diffraction analysis, differential scanning calorimetry and Auger electron spectroscopy. The as-quenched amorphous alloy displays very good corrosion performance in the testing environments. Heat treatments (from 150 to 500°C) induce structural relaxation processes and the amorphous to crystalline transition, thus bringing about contrasting effects on the corrosion resistance of the material. A superior performance has been observed in specimens annealed for 2 h at 350°C. The presence of an oxide surface layer is revealed by AES. A detailed analysis of the influence of structural and compositional aspects is given.
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https://hdl.handle.net/11583/1653871
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