Powder Metallurgy and Metal Ceramics

, Volume 33, Issue 7–8, pp 341–344 | Cite as

Structural changes in molten high-speed steels before atomizing

  • L. A. Poznyak
  • G. M. Zelinskaya
  • Yu. V. Sorokin
  • S. I. Slyusarenko
Theory, Preparation Technology, And Properties Of Powders And Fibers
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Abstract

Molten high-speed steel R6M5F3 has been studied by the x-ray method under different temperature and time conditions. It has been found that transformations of the microheterogeneous structure of the melt with an increase in temperature to 1750°C are associated with a change in atom packing both within microgroups of Fe (γ → δ) and in microregions enriched in carbon (Me6C, Me2C → MeC). The structural state of high-speed steel powders as a result of temperature-time treatment of the melt varies considerably: There is a high degree of homogeneity due to an increase in the fineness and similarity of carbide-like regions.

Keywords

Structural Change Structural State Time Condition Steel Powder Microheterogeneous Structure 

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Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • L. A. Poznyak
  • G. M. Zelinskaya
  • Yu. V. Sorokin
  • S. I. Slyusarenko

There are no affiliations available

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