Inorganic Materials: Applied Research

, Volume 3, Issue 1, pp 23–27 | Cite as

Structural features of crystallization and hardening of amorphous alloy in the Fe-Cr-B system

  • A. M. Glezer
  • I. E. Permyakova
  • N. A. Shurygina
  • T. V. Rassadina
Article
  • 35 Downloads

Abstract

The kinetics of crystallization and the influence that structural parameters of the liberated crystal phase have on the change in microhardness of Fe70Cr15B15 alloys were studied by transmission electron microscopy and X-ray structural analysis. It was established that the eutectic mechanism of crystallization is realized in the Fe70Cr15B15 alloy. The formed crystals with a eutectic phase represent barrel-like globules of iron boride Fe3B and α-FeCr alternating nanoplates in a ratio of 3: 1. It was found that the values of micro-hardness of the alloy rise linearly with an increase in the volume fraction of particles of the eutectic phase, resulting mainly from the difference between the moduli of elasticity of the amorphous matrix and the liberated eutectic-phase particles.

Keywords

crystallization of an amorphous state microhardness nanocrystal structure amorphous alloy 

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Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • A. M. Glezer
    • 1
    • 2
  • I. E. Permyakova
    • 1
  • N. A. Shurygina
    • 1
    • 2
  • T. V. Rassadina
    • 2
  1. 1.Bardin Central Scientific Research Institute of Ferrous MetalsMoscowRussia
  2. 2.Moscow State University of Instrument Making and InformaticsMoscowRussia

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