Gritsaj T. Influence of temperature and deformation parameters of treatment of low carbon sheet steel on formation of uniform structure

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0410U005935

Thesis Registration Form

0410U005935.pdf

Applicant for

Gritsaj Tatyana Valeriivna

Specialization

05.16.01 - Металознавство та термічна обробка металів

Date of defense

08-10-2010

Specialized Academic Board

К 08.231.01

Iron and Steel Institute of Z.I.Nekrasov National Academy of Sciences of Ukraine

Essay

Hot-rolled flat-rolled carbon steel. Establishment of laws and mechanisms of formation of structure and texture in low carbon hot rolled strips by at strain-heat treatment in a wide range of temperature and deformation parameters for different modes post-deformation cooling and heat treatment. Physical and mathematical modeling of deformation and heat treatment, metallographic, X-ray diffraction and electron microscopy analysis. The general regularities of the influence of temperature, strain, schemes stress-strain state, chemical and phase composition of steel, modes post-deformation cooling and heat treatment on structure formation of rolled products. The dependence between the grain structure of ferrite in the surface and central layers of the rolled sheets, deformed in the austenite-ferrite region, and the ratio of pole density of orientation texture (110) in these layers. First established cyclical process of recrystallization grain structure of ferrite in hot rolled sheet of low carbon steel during soaking at subcritical temperatures and the main factors causing the destabilization of the uniform flow of the recrystallization of ferrite. The rational scheme of production of thin hot-rolled strips with a uniform structure, structural peculiarities and various broadband hot rolling mills. Metallurgy. Companies that produce thin hot-rolled mild steel.

Thesis supervisor

Levchenko Gennadij Vasilyovich

Official opponents

Мазур Владислав Іустинович
Сухова Олена Вікторівна

Files

Aref Gricaj.doc

Dis-Gricaj--1 (9-53).doc

Dis-Gricaj--2 (54-72).doc

Dis-Gricaj--3 (100-115).doc

Dis-Gricaj--3 (73-97).doc

Dis-Gricaj--3 (98-99).doc

Dis-Gricaj--4 (116-117).doc

Dis-Gricaj--4 (118-121).doc

Dis-Gricaj--4 (122-162).doc

Dis-Gricaj--5 (163-181).doc

Dis-Gricaj--Введение (1-8).doc

Dis-Gricaj--ПРИЛОЖЕНИЕ А-Б (200-202).doc

Dis-Gricaj--ПРИЛОЖЕНИЕ В (203-214).doc

Dis-Gricaj--ПРИЛОЖЕНИЕ Г (215-220).doc

Dis-Gricaj--Список использованных источников (182-199).doc

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