Fixation of the amorphous state in alloys Co–Cr–W system under the influence of high cooling rates

Valeev R.A., Serov M.M., Leschev N.E., Yaroshenko A.S.
UDC
621.775.8
DOI
10.18577/2307-6046-2025-0-5-51-60
Article PDF (Russian) (905.89 KB)
How to cite
Valeev R.A., Serov M.M., Leschev N.E., Yaroshenko A.S. Fixation of the amorphous state in alloys Co–Cr–W system under the influence of high cooling rates // Proceedings of VIAM. 2025. No. 5. DOI: 10.18577/2307-6046-2025-0-5-51-60. URL: https://test.viam.ru/en/journal/2025/5/4
Keywords
metal fiber, high-speed solidification of the melt, amorphous state, method of extraction of a hanging drop of melt
Abstract

The article presents the results of the work carried out at the NRC «Kurchatov Institute» – VIAM Research Center on the application of the hanging melt droplet extraction method to obtain fibers from cobalt alloys of the Co–Cr–W system. The conducted studies have shown that during the quenching of the melt in alloys of the Co–Cr–W system, the amorphous state is fixed, while most of the structure of the obtained fibers is replaced by an amorphous phase. The justified modes of heat treatment providing crystallization of the amorphous phase are given. It is shown that after heat treatment, an increase in the amount of solid solutions based on Co occurs in the obtained samples.

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