Petrenko A. Increasing of wearing resistance and technological durability of wearproof steels C-Cr-Mn-Ti-Si alloying system

Subject of inquiry - is a process of renewal and strengthening parts and tools by deposition of wearproof layers with a building-up welding. The purpose - is development a compositions of economically-alloyed steels C-Cr-Mn-Ti-Si, which provide optimum combination of wearproofness and technological durability of a restored details, workings in the terms of intensive abrasive wear. Methods: theoretical, calculations, mathematical simulation, experimental: physical, mechanical, chemical and metallography researches, alpha and productions tests. Theoretical and practical results: in theory and also experimentally grounded - a possibility of structure formation controlling and breakaway propensity in a transitional area by formation of endogenous thermodynamics-proof carbides; mathematical models are built for prognostication of wearproofness; regressive dependences are also obtained; a powder-like wire for renewal is developed. Scientific novelty: possibility of structure formation controlling and breakaway propensity in a transitional layer by the additional alloying with titanium; possibility of considerable increasing of wearproofness is proved by using of low-carbon metastable austenite and titanium carbide; intercommunication of chemical composition is set with abrasive wearproofness. An implementation level of results - is production tests on public corporation "Turboatom", Kharkov.