Influence of the Cobalt Additive on the Flux Cored Wire of System Fe-C-Si-Mn-Cr-Ni-Mo-V

Evaluation of the joint effect of the chemical composition of flux cored wires on the wear and hardness of the deposited layer was carried out using mathematical-statistical methods, allowing the influence of the chemical composition of the flux cored wires on the performance of the weld layer of the mining equipment to be revealed. According to the results of the multifactor correlation analysis, the dependences of the hardness of the deposited layer and its wear resistance on the mass fraction of elements included in the flux cored wires composition of the Fe-C-Si-Mn-Cr-Ni-Mo system were determined. The obtained dependences are used to predict the hardness of the deposited layer and its wear resistance when the chemical composition of the weld metal is changed. New, protected by patents of the Russian Federation, flux cored wires of the system Fe-C-Si-Mn-Cr-Ni-Mo for surfacing the mining equipment were developed.

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Operation indices of the new cored wire of Fe−C−Si−Мn−Сr−Ni−Mo system

Козырев

Усольцев

Kryukov

et al. 2019

Černaâ metallurgiâ. Bûlletenʹ naučno-tehničeskoj informacii

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To protect and repair details of equipment, subjected to abrasive and shock-and-abrasive wear, a build-up of hard alloy is widely used to increase the wear resistance of details, operating under abrasion conditions. Cored wires of Fe−C−Si−Мn−Сr−Ni−Mo system of type A and B by MIS classification are the main wires used for wear-resistant build-up in Russia. For effective application of building-up wires it is necessary to know the dependence of built-up layer hardness and its wear resistance on mass share of elements included into the composition of the cored wires systems. Influence of chemical composition of he built-up layer, obtained by the building-up with application of new powder systems of Fe−C−Si−Мn−Сr−Ni−Mo, protected by RF patents, on its physical and mechanical properties studied. Based on the results of the multifactor correlation analysis accomplished, dependences of the built-up layer hardness and its wear resistance on mass share of elements included into the composition of the cored wires of Fe−C−Si−Мn−Сr−Ni−Mo system determined. The dependences obtained were used for forecasting of the built-up layer hardness and its wear resistance at changes of the chemical composition of the built-up layer. The tests of JOY 4LS20 mining machine screw protective plates at Kemerovo region mines, built-up by the elaborated cored wire, showed an increase of the resistance by 19.3% comparing with the analog plates built-up by DRATEC wire.

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Influence of the Cobalt Additive on the Flux Cored Wire of System Fe-C-Si-Mn-Cr-Ni-Mo-V

Cited by 4 publications

References 6 publications

Investigation of the Microstructure of Surfaced Layer from Flux-Cored Wire of the Fe – C – Si – Mn – Cr – Ni – Mo – V System

Investigation of the Microstructure of Surfaced Layer from Flux-Cored Wire of the Fe – C – Si – Mn – Cr – Ni – Mo – V System

Operational factors of new flux cored wires of the Fe–C–Si–Mn–Cr–Ni–Mo system for surfacing of protective plates of shearer cutting drums

Operation indices of the new cored wire of Fe−C−Si−Мn−Сr−Ni−Mo system

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