Email this article Effect of Vacuum Carburizing on the Structure and the Properties of Aluminide Coatings on Nickel Superalloys
- Authors: Abraimov N.V.1
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Affiliations:
- Scientific–Production Center of Gas-Turbine Building SALYUT
- Issue: Vol 2017, No 12 (2017)
- Pages: 1052-1056
- Section: Hardening and Coating Technologies
- URL: https://journals.rcsi.science/0036-0295/article/view/171896
- DOI: https://doi.org/10.1134/S0036029517120023
- ID: 171896
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Abstract
The processes that occur during vacuum carburizing of turbine blades made of carbon-free nickel superalloys are considered. Disperse alloying-element carbide particles are found to form in the surface layer of the VZhM5 alloy. These particles increase the fatigue life of the alloy during high-temperature oxidation. The disperse carbide particles are shown to hinder the formation of coarse γ′-Ni3Al grains and topologically close-packed phases under a coating; hence, they prevent premature fracture of the alloy.
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About the authors
N. V. Abraimov
Scientific–Production Center of Gas-Turbine Building SALYUT
Author for correspondence.
Email: diagnostika@salut.ru
Russian Federation, Moscow
