Thermal Properties and Crystallization Behavior of Co67Fe4Cr7Si8B14 Amorphous Alloy

Abstract:

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In order to investigate the crystallization behavior of the Co67Fe4Cr7Si8B14 amorphous metallic alloy, ribbons of this alloy were prepared by planar flow melt spinning process (PFMS). Differential scanning calorimetery (DSC) and differential thermal analyzer (DTA) were used to analyze the thermal properties and crystallization behavior of the samples at three heating rates of 10, 20 and 30º C/min. The experimental data were fitted to the Avrami model to determine the crystallization behavior. The results showed that the crystallization exotherm became wider and shifted toward a higher temperature range as the heating rate increased. The Avrami analysis also showed that n is about 1, which is related to the same transformation mechanism at different heating rates. The Kissinger method was used to determine the activation energy for the first crystallization peaks. The measured value is approximately 332.67 kJ/g.

Info:

Periodical:

Defect and Diffusion Forum (Volumes 297-301)

Edited by:

Andreas Öchsner, Graeme E. Murch, Ali Shokuhfar and João M.P.Q. Delgado

Pages:

330-337

DOI:

10.4028/www.scientific.net/DDF.297-301.330

Citation:

M. Haddad-Sabzevar et al., "Thermal Properties and Crystallization Behavior of Co67Fe4Cr7Si8B14 Amorphous Alloy", Defect and Diffusion Forum, Vols. 297-301, pp. 330-337, 2010

Online since:

April 2010

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$35.00

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