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- Title
High-Temperature Nitriding of Refractory Alloys.
- Authors
Petrova, L. G.
- Abstract
Processes of high-temperature internal nitriding of refractory alloys based on nickel and cobalt are described. Thermodynamic backgrounds for formation of zones of internal nitriding with optimum phase compositions in alloys containing alloying elements with different affinity for nitrogen are considered. It is shown experimentally that the structures obtained in zones of internal nitriding with segregations of stable fine nitride phases depend on the ratio of concentrations of the nitride-forming elements, on the nitriding temperature, and on the composition of the saturating atmosphere. The kinetic parameters of the process of internal nitriding and the conditions of formation of through diffusion layers are determined. It is shown experimentally that the refractory characteristics of the nitrided layers are enhanced.
- Subjects
ALLOYS; NITRIDING; NITRIDES; HEAT resistant alloys; SURFACE hardening; CASE hardening; MATERIALS science
- Publication
Metal Science & Heat Treatment, 2004, Vol 46, Issue 1/2, p18
- ISSN
0026-0673
- Publication type
Article
- DOI
10.1023/B:MSAT.0000029595.28616.40