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<p>High-temperature modification (<i>T</i> = 77 K) of strip-like Co<sub>72</sub>Fe<sub>5</sub>Si<sub>11</sub>B<sub>12</sub>, Co<sub>73.6</sub>Fe<sub>3.2</sub>Mn<sub>3.2</sub>Si<sub>5</sub>B<sub>15</sub>, and Co<sub>73.6</sub>(Fe, Ni, Mo, Mn)<sub>5.7</sub>(Si<sub>0.2</sub>B<sub>0.8</sub>)<sub>21</sub> amorphous alloys was performed for the first time. The corrosion resistance of these modified strips in a&#xa0;0.15 M aqueous solution of NaCl was evaluated using various physicochemical methods. It was established that as a&#xa0;result of low-temperature treatment, some change in the morphology and elemental composition, as well as the orderliness of the cobalt amorphous alloys’ structure, occurs, which leads to a&#xa0;change in the electrochemical parameters. The possibility of using this treatment to modify cobalt-based amorphous metal alloys is shown.</p>

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Low-temperature modification of cobalt amorphous alloys

  • 期刊论文

  • 发表日期：

    2025年9月18日

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  • O. M. Hertsyk,
  • Yu. O. Kulyk,
  • S. A. Korniy,
  • V. K. Nosenko,
  • N. L. Pandiak,
  • M. S. Tashak

摘要

High-temperature modification (T = 77 K) of strip-like Co72Fe5Si11B12, Co73.6Fe3.2Mn3.2Si5B15, and Co73.6(Fe, Ni, Mo, Mn)5.7(Si0.2B0.8)21 amorphous alloys was performed for the first time. The corrosion resistance of these modified strips in a 0.15 M aqueous solution of NaCl was evaluated using various physicochemical methods. It was established that as a result of low-temperature treatment, some change in the morphology and elemental composition, as well as the orderliness of the cobalt amorphous alloys’ structure, occurs, which leads to a change in the electrochemical parameters. The possibility of using this treatment to modify cobalt-based amorphous metal alloys is shown.