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Abstract <p>A comprehensive study of the primary crystallization kinetics of amorphous Co<sub>41</sub>Cr<sub>15</sub>Mo<sub>14</sub>Fe<sub>7</sub>C<sub>15</sub>B<sub>6</sub>Gd<sub>2</sub> and Co<sub>41</sub>Fe<sub>7</sub>Cr<sub>15</sub>Mo<sub>14</sub>C<sub>15</sub>B<sub>6</sub>Y<sub>2</sub> ribbons prepared by melt spinning is carried out for the first time. Differential scanning calorimetry (DSC) performed at different heating rates (5, 10, 15 K/min) showed that crystallization occurs in four stages. A crystallization mechanism consisting of two parallel processes is proposed; these are a heterogeneous <i>n</i>-order reaction and an <i>m</i>-order autocatalytic reaction, which are described by the Kamal–Sourour equation.</p>

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Crystallization Kinetics of Co41Cr15Mo14Fe7C15B6R2 (R = Gd, Y) Amorphous Ribbons

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • D. A. Kovalenko,
  • V. A. Bykov,
  • T. V. Kulikova,
  • D. A. Yagodin

摘要

Abstract

A comprehensive study of the primary crystallization kinetics of amorphous Co41Cr15Mo14Fe7C15B6Gd2 and Co41Fe7Cr15Mo14C15B6Y2 ribbons prepared by melt spinning is carried out for the first time. Differential scanning calorimetry (DSC) performed at different heating rates (5, 10, 15 K/min) showed that crystallization occurs in four stages. A crystallization mechanism consisting of two parallel processes is proposed; these are a heterogeneous n-order reaction and an m-order autocatalytic reaction, which are described by the Kamal–Sourour equation.