Laser nonuniform annealing of amorphous metal sheets,effects on structure and magnetization |
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Authors: | L Lanotte A Annunziata P Silvestrini V Tagliaferri |
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Institution: | (1) Dipartimento di Scienze Fisiche, Unità G.N.S.M.-I.N.F.M., Facoltà di Ingegneria, Piazzale V. Tecchio 80, 80125 Napoli, Italia;(2) Istituto di Cibernetica del C.N.R., Arco Felice, Napoli, Italia;(3) Politecnico di Milano, Dipartimento di Meccanica, Milano, Italia |
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Abstract: | Summary A previos thermal model for the heat treatment of a little metal ribbon, moving under a broad laser beam with Gaussian intensity
distribution, is elaborated in order to apply it also in the opposite experimental condition, namely for sample width higher
than the laser spot. The temperature valuevs. the distance from the symmetry axis of the treated zone is determined as a function of both the sample displacement rate
and the laser power. When structural and magnetic-property modulation is produced in the transverse direction of a glassy
metal ribbon, the experimental results, concerning both reduced magnetization as a function of the temperature and structure
changes, are in agreement with the thermal-model predictions. |
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Keywords: | Treatment of materials and its effects on microstructure and properties |
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