Shejko Y. Carbon Distribution among Phases and States in the Quenched, Thermocyclizated and Tempered Steels

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0401U000849

Thesis Registration Form

0401U000849.pdf

Applicant for

Specialization

  • 05.16.01 - Металознавство та термічна обробка металів

12-03-2001

Specialized Academic Board

Д 26.207.03

Institute for Problems in Materials Science

Essay

The object of research - carbonic and low-alloyed steels. The aim of research is to establish the character of carbon distribution among phases and states in these steels after quenching, temperature cycling and tempering and to offer on this base some recommendations about the regimes of their thermal treatment. The investigation methods and apparatuses - differential thermomagnetic, dilatometer analysis and analytical investigation methods, used in the laboratory and industrial enterprice conditions. New theoretical results - classification of carbon phases and states in steels is proposed. The carbon distribution in these steels after quenching, thermal cycling and tempering under different temperatures was investigated. New practical results - recommendations, devoted to the construction and foundry steels for the details and units tempering technological regimes are proposed. The application degree - the recommendations are used by the "Stroidormash" corporation (the implantation act is subjoined) . They are used for such technology modernization for the first time. They are also used in the fundamental researches and in the teaching process of the National Technical University of Ukraine "Kiev Polytechnic Institute" (the implantation act is subjoined). The implementation sphere - machine building manufacturing, fundamental scientific researches and teaching process of the higher education institutions of the technical profile.

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