Olexienko S. Influence of non-metal inclusions on the rise of life of construction materials by surface modification

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0407U000583

Thesis Registration Form

0407U000583.pdf

Applicant for

Specialization

  • 05.02.01 - Матеріалознавство

22-01-2007

Specialized Academic Board

Д 26.207.03

Institute for Problems in Materials Science

Essay

The danger series of non-metal inclusions (NMI) are set in steel 20, Ch18N10T programmic impurity: oxides, nitrides, sulfides and plastic silicates - of an electrochemical heterogeneity, a hydrogenation in NACE and other hydrogenating mediums; of the thermal (mosaic) tesselated, mechanical concentration stresses on the phase interface Me-NMI. The new factors of an influence NMI have been shown for the life, durability, hydrogen degradation of steel: electrosorption valency on which was definited predominating role oxides - with a participation of H+ and sulfides - with a participation of H-; the negative differential-effect, that is accelerated fracture of steel, with depending on NMI, at the static and low-cycle endurances. The effective synergetic metallochelating compositions have been developed on the basis of indexes correlations of the physical and chemical phenomena on the surface, in the surface layer and volume of metal with characteristics of the synergetic additions. They are effective for asurface modification of steel for the rise of its life, durability and ecological safety. The dissertation results found the practical application on the productions and in an educational process.

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Files

Автореферат.doc

Дисертація--TITUL.DOC

Дисертація--Додатки А-Г.doc

Дисертація--Додатки А-Г.doc

Дисертація--ОСНОВНІ ВИСНОВКИ.doc

Дисертація--РОЗДІЛ 2.doc

Дисертація--Рисунок 4.21.doc

Дисертація--Розділ 3.doc

Дисертація--Розділ 4.doc

Дисертація--Розділ 4.doc

Дисертація--Розділ 5.doc

Дисертація--Розділ1.doc

Дисертація--СПИСОК ВИКОРИСТАНИХ ДЖЕРЕЛ.doc

Дисертація--табл.5.3.doc

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