Milonin E. Rhenium-free heat-resistant nickel alloy for the production of castings with directional and monocrystalline structure

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0420U101628

Thesis Registration Form

0420U101628.pdf

Applicant for

Specialization

  • 05.02.01 - Матеріалознавство

06-10-2020

Specialized Academic Board

Д 17.052.01

Zaporizhzhya National Technical University

Essay

In the presented work, using the calculation and analytical methods for forecasting phase and structural stability, the chemical composition of the heat-resistant nickel alloy for the manufacture of cast rotor blades by the method of directional (mono) crystallization ZMI-M5, which does not contain rhenium, is developed. The alloy after heat treatment, under the regime provided for modern IV generation alloys showed a tensile strength в above 1300 MPa with satisfactory ductility ( 6.0%) at a temperature of 20 ?C, as well as time to failure at a test temperature of 975 ?C and a load of 300 MPa 60...90 hours, which meets the requirements for the serial alloy ZhS32-VI and it is much cheaper.

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Files

autoreferat-aref.pdf

dis.pdf

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