PSI - Issue 36

Valerii Peremitko et al. / Procedia Structural Integrity 36 (2022) 106–113 Valerii Peremitko et al. / StructuralIntegrity Procedia 00 (2021) 000 – 000

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2 2 p n 16.4 27.6·Si 117.9·Al –12.59·Si – 39.93·Si·Al –147.04·Al = − + +

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4. Conclusions To ensure maximum hardness on the surface of the applied layer, the recommended ranges of silicon content in the surfaced metal are within the range of 0. 60…1 .22%, and aluminum with in the ranges of 0…0 .10% and 0. 50…0 .60%. Due to the presence of aluminum in the metal, the decrease in the non-uniformity of hardness values for the applied layer both in cross section and on the surface, and the possibility of adjusting the hardness are observed. The smallest number of cracks or their complete absence can be expected in the cases of surfacing by the wire/tape, the composition of pure surfacing of which includes 0. 26…0 .42% of aluminum at silicon content of 0. 20…1 .80% or 0. 26…0 .60% of aluminum at silicon content of not more than 0.70%. The greatest risks of pore formation occur in the case of wire/tape surfacing that in pure surfacing has silicon content within the range of 0. 42…0 .82%, and aluminum within the range of 0. 25…0 .40%. It is found that the tendency to pores occurs in the case of the application of flux-cored wires with smaller diameter. This fact requires special investigation. References Albertin, E., Sinatora, A., 2001. Effect of carbide fraction and matrix microstructure on the wear of cast iron balls tested in a laboratory ball mill. Wear 250, 492 – 501. Azimi, G., Shamanian, M., 2010. Effects of silicon content on the microstructure and corrosion behaviour of Fe-Cr-C hardfacing alloys. Journal of Alloys and Compounds 505, 598 – 603. Babinets, A. A., Ryabtsev, I. A., 2017. Flux-cored wire for wear-resistant surfacing of thin-sheet structures. The Paton Welding 1, 54 – 57. Coronado, J. J., 2011. Effect of (Fe,Cr)7C3 carbide orientation on abrasion wear resistance and fracture toughness. Wear 270 (3) 287 – 293. Coronado, J. J., Caicedo, H. F., Gómez A. L. 2009. The effects of welding processes on abrasive wear resistance for hardfacing deposits. Tribology International 42, 745 – 749. Fu, Hg., Wu, Xj., Li, Xy., Xing, Jd., Lei, YP., Zhi, Xh., 2009. Effect of TiC particle additions on structure and properties of hypereutectic high chromium cast iron. Journal of Materials Engineering and Performance 18(8), 1109 – 1115. Efremenko, B., Belik, A., Chabak, Y., Halfa, H., 2018. Simulation of structure formation in the Fe – C – Cr – Ni – Si surfacing materials. Eastern European Journal of Enterprise Technologies, 92 2(12 (), 33 – 38. Liu, Z., Li, Y., Chen, X., Hu, K., 2008. Micro-structure and mechanical properties of high boron white cast iron. Materials Science and Engineering: A 486 (1 – 2), 112 – 116. Liu, D., Liu, R., Wei, Y. et al. 2013. Microstructure and wear properties of Fe – 15Cr – 2.5Ti – 2C – xB wt.% hardfacing alloys. Applied Surface Science 271, 253 – 259. Tang, X. H., Chung, R., Pang, C.J., Li, D.Y., Hinckley, B., Dolman, K., 2011. Microstructure of high (45 wt.%) chromium cast irons and their resistances to wear and corrosion. Wear 271, 1426 – 1431. Peremitko, V.V., Kuznetsov, V.D., Sokol, A.N., 2014. Modifying charge input optimization in arc surfacing with the controlling magnetic influence. Applied mechanics and materials 384, 174 – 182. Sare, I. R., Arnold, B. K., 1989. Gouging abrasion of wear-resistant alloy white cast irons. Wear 131(1), 15 – 37. Sm rkovský , J., Blaškovič P., Grinberg , N. A., 1999. Erosive and hydroabrasive resistance of hardfacing materials. Wear 233 – 235 (5), 229 – 236. Studnicki, A., Kilarski, J., Przybył , M., 2006. Wear resistance of chromium cast iron – research and application. Journal of Achievements in Materials and Manufacturing Engineering 16 (1-2), 63 – 73. Yüksel , N., Sahin, S., 2014. Wear behavior – hardness – microstructure relation of Fe – Cr – C and Fe – Cr – C – B based hardfacing alloys. Materials and Design 58, 491 – 498.