Metal Science and Heat Treatment

, Volume 34, Issue 4, pp 241–246 | Cite as

Influence of nonferrous metals impurities on the structure and high temperature strength of nickel based foundry alloys

  • V. V. Sidorov
  • A. M. Kulebyakina
Heat-Resistant Steels and Alloys


1. Nickel based alloys of the Ni plus 5% Cr plus 9% Co plus 12% W plus 1% Mo type with an equiaxial structure are more sensitive to nonferrous metal impurities than are alloys that are cast with a controlled structure. This effect is due to the structure formation characteristics for these alloys.

The most adverse effect is that due to impurities on the formation of a composite structure when the eutectic alloys are cast: the plane crystallization front loses stability due to concentrational supercooling and a cellular structure is formed, which results in a significant fall in the durability.


Nickel Crystallization Composite Structure Control Structure Cellular Structure 
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Literature cited

  1. 1.
    J. M. Walsh, and N. P. Anderson, Investigations of Fracture of Superalloys Using AES Method. Superalloys Metallurgy and Manufacture: Proc. 3rd Int. Conf., Seven Springs, U.S.A. (1976), pp. 120–129.Google Scholar
  2. 2.
    M. V. Pridantsev, Heat Resistant Aging Alloys [in Russian], Edited by M. L. Bernshtein and I. I. Novikov, Metallurgiya, Moscow (1973), pp. 19–21.Google Scholar
  3. 3.
    S. Z. Bokshtein Structure and Properties of Metallic Alloys [in Russian], Metallurgiya, Moscow (1971).Google Scholar
  4. 4.
    S. T. Kishkin, G. B. Stroganov, A. V. Logunov, et al., "Controlled crystallization of heat resistant alloys," Lit. Proiz., No. 4, 17–19 (1984)Google Scholar
  5. 5.
    B. Chalmers, A Solidification Theory [in Russian], Metallurgiya, Moscow (1968).Google Scholar
  6. 6.
    A. I. Somov and M. A. Tikhonovskii Eutectic Compositions [in Russian], Metallurgiya, Moscow (1975).Google Scholar

Copyright information

© Plenum Publishing Corporation 1992

Authors and Affiliations

  • V. V. Sidorov
  • A. M. Kulebyakina

There are no affiliations available

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