Shpak P. Features of structure's formation and properties of high-speed steel, increasing of efficiency of technology it's electron-beam re-melting

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0406U001254

Thesis Registration Form

0406U001254.pdf

Applicant for

Specialization

  • 05.02.01 - Матеріалознавство

13-03-2006

Specialized Academic Board

Д 26.207.03

Institute for Problems in Materials Science

Essay

The target the work is the solution of a scientific-technological problem by design of effective technology of electro-beam re-melting of high-speed steel and it's heat-treatment. Object of researches are processes of interplay of re-melted metal with electron-beam, crystallization and formation of ingot's structure of high-speed steel at an electron-beam re-melting and subsequent heat-treatment. Used methods of researches: high-temperature differential thermal analysis, X-ray phase's, durometric, metallographic, X-ray spectral, magnetic and frctographic methods of analyses, mechanical tests on stretching, bending and impact bending, numerical simulation. The complex research of properties of high-speed steel of electron-beam re-melting was conducted. The designed industrial technology of electron-beam re-melting of high-speed steel is inserted in "Gekont".

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