Archives of Metallurgy and Materials (Apr 2015)

Microstructure of Cast Ni-Cr-Al-C Alloy

  • Cios G.,
  • Bała P.,
  • Stępień M.,
  • Górecki K.

DOI
https://doi.org/10.1515/amm-2015-0022
Journal volume & issue
Vol. 60, no. 1
pp. 145 – 148

Abstract

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Nickel based alloys, especially nickel based superalloys have gained the advantage over other alloys in the field of high temperature applications, and thus become irreplaceable at high temperature creep and aggressive corrosion environments, such as jet engines and steam turbines. However, the wear resistance of these alloys is insufficient at high temperatures. This work describes a microstructure of a new cast alloy. The microstructure consists of γ matrix strengthened by γ’ fine precipitates (dendrites) improving the high temperature strength and of Chromium Cr7C3 primary carbides (in interdendritic eutectics) which are designed to improve wear resistance as well as the high temperature strength.

Keywords