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Inorganic Materials: Applied Research

, Volume 9, Issue 6, pp 1006–1011 | Cite as

Carburization of Heat-Exchanger Pipes of 09Kh18N9 Grade Steel in Contact with Sodium Coolant

  • A. S. KudryavtsevEmail author
  • K. A. Okhapkin
METAL SCIENCES. METALLURGY

Abstract

The carburization process of heat-exchanger piping of 09Kh18N9 grade steel in contact with sodium coolant under conditions of long-term service at 515°С has been investigated. An effective diffusion coefficient has been determined on the basis of the experimental data on carbon concentration in the metal surface layer; the carburization depth within the temperature range 450–515°С has been calculated.

Keywords:

steam generator heat-exchanger piping sodium coolant carburization effective diffusion coefficient 

Notes

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.National Research Center Kurchatov Institute—Central Research Institute of Structural Materials PrometeySt. PetersburgRussia

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