Domorats'kyj V. Structureformation at combined treatment of powder eutectic and peritectic steels that provides for the increase of cutting tool resistance.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0402U003209

Thesis Registration Form

0402U003209.pdf

Applicant for

Specialization

  • 05.16.01 - Металознавство та термічна обробка металів

08-10-2002

Specialized Academic Board

Д08.084.02

Essay

The following points have been stated in the thesis for the first time: rules of multiphase crystallization of highalloyed high-speed steels of high capacity at cooling from a liquid state in a wide range of cooling speeds; parameters of structural trans formations at sintering granules in the temperature range of a reverse eutectic (carbide+austenite->liquid) and a peritectic transformation of forming ?-ferrite from a liquid and austenite in a wide range of heating speeds. Theoretical results obtained in the thesis allowed to formulate the means of a purposeful influence on the phase composition of original granules of high-speed powder steels of high capacity due to changes in kinetics of their heating, to reduce compacting time in comparison with standard sintering technology, to increase the quantities of a carbide component, to provide 1,8 times increase of tool resistance.

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Files

01-TitylOglavlenie.doc

02-Vvedenie.doc

03-Glava1.doc

04-Glava2-1-1.doc

05-Glava2-2-2-7.doc

06-Glava3Razdel3-1.doc

07-Glava3Razde3-2.doc

08-Glava4Razdel4-1.doc

09-Glava4Razdel4-2.doc

10-Glava5.doc

11-Glava6.doc

12-Glava7.doc

13-Glava8.doc

14-Vivodi.doc

15-Literatura.doc

16-PrilozenieA.doc

17-PrilozenieB.doc

aref.doc

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