Candidates Romashov Anton Sergeevich, scientific adviser Farnasov Gennady Alekseevich. Ph.D. thesis here competition academic degree candidate technical science «Influence structural modification on

Candidates Romashov Anton Sergeevich, scientific adviser Farnasov Gennady Alekseevich. Ph.D. thesis here competition academic degree candidate technical science «Influence structural modification on property high-temperature nickel alloy by dispersed hardening nitrides of alloying elements».

The problem of longevity of components of gas turbine engines is associated with an increase in intensity thermomechanical parts, which is the main cause of low resources. Particularly acute this problem becomes in the creation of modern aircraft engines, for which the basic characteristic are an increase compression index and temperature of the gases compared to turbine, reducing the weight of the engine. The development of new engines based on the application of the new titanium, heat-resistant nickel and intermetallic alloys.

Modern heat-resistant nickel alloys used in gas turbine engines guarantee firm functioning of parts at temperatures up to 1100 °C, promising that gas turbine engines is insufficient. For precipitation hardening alloys significant drawbacks is the low technological effectiveness in production and limiting the working temperature conditions for maintaining stability of intermetallic particles and carbides. The most heat-resistant homogeneous alloys are limited of alloyage refractory elements, above which occur apportionment phase making brittle alloys. Another possible way - by improving the heat resistance of dispersion hardening refractory nitride particles of alloying elements with high-temperature volume nitration.

Main conclusions:

1. Ascertain of the chemical composition and the availability of protective coat on the rate and extent of nitration.

2. Ascertain, than nitrides of alloying elements that increase the durability of the alloy СТ60VT+Co+Ti by high-temperature corrosion.

3. Volume nitration alloy СТ60VT+Co+Ti almost two occasion tensile strength and yield strength .

4. Through nitration passed in plate thicknesses of 0.8 mm and 1.0 mm.

5. Work through that welding parts.

6. Develop method for the production of industrial parts.

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