THE INFLUENCE OF HEAT TREATMENT ON THE （热处理的的影响）.pdf

Latin American Applied Research 33:289-294 (2003) THE INFLUENCE OF HEAT TREATMENT ON THE CORROSION BEHAVIOUR OF Fe Cu Nb B Si Cr FINEMET TYPE ALLOY 69.5 1 3 9 13.5 4 † † † ‡ D. R. SALINAS , S. G. GARCÍA , R. DI SANTO , F. F. MARZO , J. B. BESSONE† and A. R. PIERNA‡ † INIEC - Dto. Ing. Química, Univ. Nac. del Sur, 8000 Bahía Blanca, Argentina. dsalinas@criba.edu.ar ‡ Dto. de Ing. Química y del Medio Ambiente, Univ. del País Vasco, P.O. Box 1379, E-20080 San Sebastián, España Abstract −− The influence of the annealing present excellent soft magnetic properties and have a treatment on the passivating ability of the great application in noise filters and choke coils, Fe Cu Nb B Si Cr nanocrystalline alloy in 2 M between others. As a result, a family of alloys known as 65.5 1 3 9 13,5 4 HCl solution was studied by differential scanning FINEMET type has emerged, and the alloy composition most widely studied is Fe Cu Nb B Si (Yoshisawa calorimetry (DSC), atomic force microscopy (AFM), 73.5 1 3 9 13.5 scanning electron microscopy (SEM) and et al., 1988; Yoshisawa, 1999). This nanostructured conventional electrochemical