STRUCTURE OF THE WELD SEAM OF WEAR-RESISTANT PAD PRODUCED WITH Fe – C – Si – Мn – Сr – Ni – Mo SYSTEM FLUX CORED WIRE

At present, surfacing technologies are actively used in various spheres of the economy. Surfacing technologies, equipment and materials provide effective tool for reducing costs of industrial enterprises. The issue of reducing operating costs at enterprises is always relevant in terms of increasing profitability of any production, especially in crisis situation, when reduction of operating costs is one of the main areas for survival of both individual enterprises and entire industries. One of the main expenditure items for maintaining vital activity of any production are costs associated with maintenance and repair of machines and assemblies, providing them with spare parts and assemblies. In the matter of significant reduction in this item of expenditure, technology of restoration and surface hardening is of great help. For the Kemerovo region - Kuzbass, the most promising is mining equipment restoration and surface hardening. This article continues the study of promising wear-resistant coatings. Based on the previously obtained results on wear resistance and hardness of the deposited layers, the best coating properties were selected for further research. The structure, elemental and phase composition of the samples of the Fe-C-Si-Mn-Cr-Ni-Mo system deposited with flux-cored wire were studied by methods of scanning electron microscopy and X-ray phase analysis. The wire diameter was 6 mm. Surfacing was carried out on samples made of 09G2S steel. The surfacing was carried out at a current strength of 450 A, a voltage of 30 V, and a welding speed of 10 m / min. 

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