Actual Problems in Machine Building 2017 Vol. 4 No. 2

Actual Problems in Machine Building. Vol. 4. N 2. 2017 Materials Science in Machine Building ____________________________________________________________________ 106 STUDYING THE EFFECT OF COBALT ADDITIVE IN TO THE FLUX CORED WIRE SYSTEM Fe-C-Si-Mn-Cr-Ni-Mo-V ON THE STRUCTURE AND PROPERTIES OF THE DEPOSITED METAL Osetkovskii I.V. , Master’s Degree student, e-mail: dadlic@mail.ru Kozyrev N.A. , D.Sc. (Engineering), Professor, e-mail: Kozyrev_na@mail.ru Kibko N.V. , Ph.D. (Engineering), Senior lecturer, e-mail: krivicheva_nv@mail.ru Popova M.V., D.Sc. (Engineering), Professor, e-mail: m.popova@rdtc.ru Kryukov R.E. , Ph.D. (Engineering), Senior lecturer, e-mail: rmk@nzrmk.ru Siberian State Industrial University, 42 Kirov st., Novokuznetsk, 654007, Russian Federation Abstract Researched cobalt additive in the charge of flux coder wire system Fe-C-Si-Mn-Cr-Ni-Mo-V influence on structure, nature of nonmetallic inclusions, hardness and wear resistance of surfaced metal. In the laboratory conditions were manufactured flux coder wire samples with the use of corresponding powder materials. As a carboncontaine material were used the dust of aluminum production dry scrubbing. In the course of the research were defined chemical composition and mechanical properties of deposited layer and metallographic analysis were made. After the metallographic analysis was established size of former austenite grain, martensite degree of dispersion and nonmetallic impurity rating of the deposited layer. It was shown that nickel contain raising up to 0,65% as well as raising cobalt contain while reducing carbon contain down to 0,17-0,23% promotes reducing size of martensite needles and size of former austenite grain. Changing allowing rate of the flux cored wire system Fe-C-Mn-Si-Cr-Ni-Mo-V practically does not influence on nonmetallic impurity level of its deposited layer. Keywords Wire, shock-abrasive wear, welding, restoration, multivariate analysis, wear resistance, hardness, non-metallic inclusions, structure