Π¦Π΅Π½ΡΡΠ°Π»ΡΠ½ΠΎΡΠΊΡΠ°ΡΠ½ΡΡΠΊΠΈΠΉ Π½Π°ΡΠΊΠΎΠ²ΠΈΠΉ Π²ΡΡΠ½ΠΈΠΊ. Π’Π΅Ρ Π½ΡΡΠ½Ρ Π½Π°ΡΠΊΠΈ. ΠΠΈΠΏΡΡΠΊ 2. - 2019
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Item type:Item, Π€ΠΎΡΠΌΡΠ²Π°Π½Π½Ρ ΡΠ°Π·ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΊΠ»Π°Π΄Ρ, ΡΡΡΡΠΊΡΡΡΠΈ ΡΠ° Π²Π»Π°ΡΡΠΈΠ²ΠΎΡΡΡ Π΅Π»Π΅ΠΊΡΡΠΎΠ΄ΡΠ³ΠΎΠ²ΠΈΡ ΠΏΠΎΠΊΡΠΈΡΡΡΠ² ΡΠΈΡΡΠ΅ΠΌΠΈ Fe-Mn-Nb-Si-C Π΄Π»Ρ Π·ΠΌΡΡΠ½Π΅Π½Π½Ρ ΡΠΎΠ±ΠΎΡΠΈΡ ΠΏΠΎΠ²Π΅ΡΡ ΠΎΠ½Ρ Π·Π΅ΠΌΠ»Π΅ΡΠΈΠΉΠ½ΠΎΡ ΡΠ΅Ρ Π½ΡΠΊΠΈ(Π¦ΠΠ’Π£, 2019) ΠΡΠΈΡΡΠΆΠ½ΡΠΊ, Π. Π.; ΠΠ½Π΄ΡΡΡΠΈΡΠΈΠ½, Π . Π.; ΠΡΡΠ°ΠΊ, Π. Π.; ΠΠ²Π°Π½ΠΎΠ², Π. Π.; ΠΠ½Π΄ΡΡΡΡΡΠΈΠ½, Π . Π.; ΠΠ²Π°Π½ΠΎΠ², Π. Π.; Prysyazhnyuk, P.; Andrusyshyn, R.; Lutsak, L.; Ivanov, O.ΠΠ»Ρ ΠΏΠΎΡΠΎΡΠΊΠΎΠ²ΠΈΡ Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π½ΠΈΡ ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΡΠ² ΡΠ· ΠΏΠΎΠ·ΠΈΡΡΡ ΡΡΠ²Π½ΠΎΠ²Π°ΠΆΠ½ΠΎΡ ΡΠ΅ΡΠΌΠΎΠ΄ΠΈΠ½Π°ΠΌΡΠΊΠΈ ΡΠΎΠ·Π³Π»ΡΠ½ΡΡΠΎ ΡΠΈΡΡΠ΅ΠΌΡ Π»Π΅Π³ΡΠ²Π°Π½Π½Ρ Fe-Mn-Nb-Si-C. Π ΠΎΠ·ΡΠ°Ρ ΠΎΠ²Π°Π½ΠΎ ΡΡΠ²Π½ΠΎΠ²Π°ΠΆΠ½ΠΈΠΉ ΡΠ°Π·ΠΎΠ²ΠΈΠΉ ΡΠΊΠ»Π°Π΄ ΡΠΈΡΡΠ΅ΠΌ Ρ Π°ΡΠ°ΠΊΡΠ΅ΡΠ½ΠΈΠΉ Π΄Π»Ρ ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΡΠ², ΡΠΎ Π²ΡΠ΄ΠΏΠΎΠ²ΡΠ΄Π°ΡΡΡ Π²ΠΈΡΠΎΠΊΠΎΠΌΠ°ΡΠ³Π°Π½ΡΠ΅Π²ΠΈΠΌ Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π°ΠΌ Π»Π΅Π³ΠΎΠ²Π°Π½ΠΈΠΌ ΠΊΠ°ΡΠ±ΡΠ΄ΠΎΠΌ Π½ΡΠΎΠ±ΡΡ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΠΎ Ρ ΠΏΡΠΎΡΠ΅ΡΡ ΠΊΡΠΈΡΡΠ°Π»ΡΠ·Π°ΡΡΡ ΠΌΠ΅ΡΠ°Π»Ρ, Π½Π°ΠΏΠ»Π°Π²Π»Π΅Π½ΠΎΠ³ΠΎ ΡΠ°ΠΊΠΈΠΌΠΈ Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π½ΠΈΠΌΠΈ ΠΌΠ°ΡΠ΅ΡΡΠ°Π»Π°ΠΌΠΈ ΡΡΠ²Π½ΠΎΠ²Π°ΠΆΠ½ΠΎΡ Ρ Π°ΡΡΡΠ΅Π½ΡΡΠΎ-ΠΊΠ°ΡΠ±ΡΠ΄Π½Π° ΡΡΡΡΠΊΡΡΡΠ°. ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½Ρ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΡΡΡΡΠΊΡΡΡΠΈ Π½Π°ΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΡΠ΄ΡΠ²Π΅ΡΠ΄ΠΆΡΡΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΈ ΡΠΎΠ·ΡΠ°Ρ ΡΠ½ΠΊΡΠ². ΠΠ°ΠΏΡΠΎΠΏΠΎΠ½ΠΎΠ²Π°Π½Π° ΡΠΈΡΡΠ΅ΠΌΠ° Π»Π΅Π³ΡΠ²Π°Π½Π½Ρ Π΄ΠΎΠ·Π²ΠΎΠ»ΡΡ ΠΎΡΡΠΈΠΌΠ°ΡΠΈ ΡΠ²Π΅ΡΠ΄ΡΡΡΡ ΠΏΠΎΠ²Π΅ΡΡ Π½Π΅Π²ΠΎΠ³ΠΎ ΡΠ°ΡΡ Π½Π° ΡΡΠ²Π½Ρ 35 HRC ΠΏΡΡΠ»Ρ Π½Π°ΠΏΠ»Π°Π²Π»Π΅Π½Π½Ρ ΡΠ° 54 HRC ΠΏΡΡΠ»Ρ ΠΏΠ»Π°ΡΡΠΈΡΠ½ΠΎΡ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΡΡ. ΠΠ»Ρ ΠΏΠΎΡΠΎΡΠΊΠΎΠ²ΡΡ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π½ΡΡ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Ρ ΠΏΠΎΠ·ΠΈΡΠΈΠΈ ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠ½ΠΎΠΉ ΡΠ΅ΡΠΌΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Π° ΡΠΈΡΡΠ΅ΠΌΠ° Π»Π΅Π³ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Fe-Mn-Nb-Si-C. Π Π°ΡΡΡΠΈΡΠ°Π½ ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠ½ΡΠΉ ΡΠ°Π·ΠΎΠ²ΡΠΉ ΡΠΎΡΡΠ°Π² ΡΠΈΡΡΠ΅ΠΌ, ΠΊΠΎΡΠΎΡΡΠΉ Ρ Π°ΡΠ°ΠΊΡΠ΅ΡΠ΅Π½ Π΄Π»Ρ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ², ΠΊΠΎΡΠΎΡΡΠ΅ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡ Π²ΡΡΠΎΠΊΠΎΠΌΠ°ΡΠ³Π°Π½ΡΠ΅Π²ΡΠΌ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π°ΠΌ Π»Π΅Π³ΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌ ΠΊΠ°ΡΠ±ΠΈΠ΄ΠΎΠΌ Π½ΠΈΠΎΠ±ΠΈΡ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΌΠ΅ΡΠ°Π»Π»Π°, Π½Π°ΠΏΠ»Π°Π²Π»Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠ°ΠΊΠΈΠΌΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π½ΡΠΌΠΈ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°ΠΌΠΈ ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠ½ΠΎΠΉ ΡΠ²Π»ΡΠ΅ΡΡΡ Π°ΡΡΡΠ΅Π½ΠΈΡΠΎ-ΠΊΠ°ΡΠ±ΠΈΠ΄Π½Π°Ρ ΡΡΡΡΠΊΡΡΡΠ°. ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΡΡΡΠΊΡΡΡΡ Π½Π°ΠΏΠ»Π°Π²Π»Π΅Π½Π½ΡΡ ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π°ΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠ°ΡΡΠ΅ΡΠΎΠ². ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Π°Ρ ΡΠΈΡΡΠ΅ΠΌΠ° Π»Π΅Π³ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΏΠΎΠ»ΡΡΠΈΡΡ ΡΠ²Π΅ΡΠ΄ΠΎΡΡΡ ΠΏΠΎΠ²Π΅ΡΡ Π½ΠΎΡΡΠ½ΠΎΠ³ΠΎ ΡΠ»ΠΎΡ Π½Π° ΡΡΠΎΠ²Π½Π΅ 35 HRC ΠΏΠΎΡΠ»Π΅ Π½Π°ΠΏΠ»Π°Π²ΠΊΠΈ ΠΈ 54 HRC ΠΏΠΎΡΠ»Π΅ ΠΏΠ»Π°ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΈ. The purpose of the study was to establish the regularities of formation of the structure, phase composition and properties of electric arc coatings of powder wires based on high-alloy (manganese) steel with niobioum carbide additions using CALPHAD method together with expiremental investigation of structure and properties and obtainig the hardfacing material with high impact arbasive wear resistance for earth moving machines equipment. Using the free energy calculations of a multicomponent system by the Calpad method, a pseudobinary phase diagram of a highmanganese steel - niobium carbide system was constructed. The use of the diagram made it possible to predict the phase and elemental composition of electric arc coatings made of powder electrode materials. The proposed alloying system allows to obtain a surface layer consisting of two phases: manganese austenite and niobium carbide in the form of dispersed inclusions. The results of measuring the hardness of the arc coatings of the proposed doping system show that increasing the content of niobium carbide in high manganese hardfacing alloy from 0 to 10 vol. % leads to an increase in the hardness of the surface layer from 20 to 35 HRC in the undeformed state and from 46 to 54 in the deformed state. The results show that the presence of disperse NbC inclusions in the amount of more than 6 % by volume increases the intensity of hardening of the surface layer during deformation due to the formation of microregions with high level of internal stresses. According to the results of theoretical and experimental researches, a system of doping of powder electrode materials was developed to strengthen the working bodies of earthmoving equipment, which operates under conditions of considerable dynamic loads in abrasive media. It is established that when alloying electrode materials based on manganese steels close in composition to 110G13L steel, niobium carbide significantly increases both the initial hardness (before deformation) and the hardness after deformation. The obtained value of the hardness of the deformed layer - 54 HRC significantly exceeds the hardness of the serial high-manganese alloys (46 HRC) hardfacings.