Abstract
The article is dedicated to evaluation of surface dynamic micro-hardness of experimental hard alloy grades with modified binder constructed on the base of standard single-carbide grade VK8. Connections between micro-hardness and absolute thermo-EMF together with thermal entropy of an alloy as integrated characteristics of its chemical composition and surface properties also were investigated. Micro-hardness measurements on the surfaces of samples made of six experimental hard alloy grades with two types of binder (Co-Fe-Cu and Co-Mo-Ti) were performed using scratching by diamond micro-indenter and assessing micro-hardness by the width of a scratch. It was experimentally confirmed that the highest values of micro-hardness and the highest resistance to abrasive wear are characteristic to hard alloy grades which have the lowest values of absolute thermo-EMF together with the highest values of thermal entropy. It was ascertained that experimental grade 2.22 (binder composition: 5,65%Co + l,8%Mo + 0,6%Ti) has the highest value of surface micro-hardness. The addition of more than 5% Mo to binder results in decreasing of surface micro-hardness compared with basic grade VK8. It was recommended that in the process of new hard alloy grades construction preference must be given to compositions with high values of thermal entropy as having the highest resistance to abrasive wear.
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References
Genga RM et al (2013) Effect of Mo2C additions on the properties of SPS manufactured WC–TiC–Ni cemented carbides. Int J Refract Met Hard Mater 41:12–21
Correa EO et al (2010) Microstructure and mechanical properties of WC–Ni–Si based cemented carbides developed by powder metallurgy. Int J Refract Met Hard Mater 28:572–575
Ryzhkin AA et al (2016) Determination of the efficiency of high-entropy cutting tool materials. J Friction Wear 37:47–54
Ryzhkin AA et al (2016) Structurno-termodinamicheskie aspekti povischenia rabotosposobnosti IRM (Structural and thermodynamic aspects of efficiency of cutting tool materials). Maschinostroeniye, Moscow
Ryzhkin AA (2011) Termodinamicheskiy podhod k raschiotu intensivnosti okislitel’nogo iznaschivaniya (Thermodynamic approach to calculating the intensity of oxidative wear of hard alloys) Mehanica i tribologia tranportnih system, pp 195–203
Ryzhkin AA (2016) Techniko-economicheskie i termodinamicheskie aspekti optimizacii lezviynoiy obrabotki (Technical, economic and thermodynamic aspects of blade processing optimization). Vestnik DGTU 16:41–50
Karapet’yanc MH (1975) Himicheskaya termodinamica (Chemical thermodynamic). Himiya, Moscow
Moran MJ (1999) Engineering Thermodynamics. CRC Press LLC
Guchman AA (2010) Ob osnovah termodinamiki (The grounds of thermodynamic). LKI, Moscow
Prigozhin I, Kondepudi D (2002) Sovremennaya termodinamika ot teplovih dvigateley do dissipativnich structur (Modern thermodynamic from heat engines to dissipative structures). Mir, Moscow
Ryhkin AA et al (2017) Otsenka triboelectricheskich haracteristic bistrorezhushtih staley (Estimation of triboelectrical properties of high-speed steels). Vestnik DGTU 2:20–29
Ryzhkin AA et al (2018) Wear and performance of hard alloys. Russ Eng Res 38(6):438–441
Beskopylny AN, Fominov EV et al (2019) Tribological characteristics of experimental hard alloy grades with modified cobalt binder under conditions of dry friction on titanium-aluminum alloy VT-3. In: Proceedings of 16th International conference on tribology-SERBIATRIB’19, University of Kragujevac, Serbia, 15–17 May 2019, pp 49–58
Fominoff EV, Shuchev CG (2018) Tribological Properties of Experimental Hard Alloys in Conditions of Friction on Structural Steel without Lubricant. MATEC-Web Conf 226:01006
Liu R, Li D (2001) Modification of Archard’s equation by taking account of elastic/pseudoelastic properties of materials. Wear 251:956–964
Kregelskiy IV et al (1977) Osnovi raschetov na trenie i iznos. (Basis of calculation for friction and wear) Mashinostroenie, Moscow
Hatt O et al (2017) On the mechanism of tool crater wear during titanium alloy machining. Wear 374–375:15–20. https://doi.org/10.1016/j.wear.2016.12.036
Buse H, Feinle P (2016) Model system studies of wear mechanisms of hard metal tools when cutting CFRP. Proc Eng 149:24–32
Blau PJ (2009) Friction science and technology: from concepts to applications. Taylor & Francis Group LLC
Blau PJ (1985) Relationship between Knoop and scratch micro-identation hardness and implications for abrasive wear. Microstruct Sci 12:293–313
Vencl A et al (2013) Abrasive wear resistance of the iron-and WC-based hardfaced coatings evaluated with scratch test method. Tribol Ind 35:123–127
Montgomery DC (2013) Design and analysis of experiments. John Wiley & Sons
Ryzhkin AA (2000) O svyasy mezdu iznosostoykostyu I fizicheskimi svoystvami instumentalnih materialov (Relationship between wear resistance and physical properties of metal cutting tool materials). Vestnik Maschinostroeniya 12:32–40
Ryzhkin AA et al (2018) Study on the tribological characteristics of high entropy high speed steels in conditions of dry friction on structural steel. In: Proceedings of the 4th International conference on industrial engineering ICIE. Lecture notes in mechanical engineering, Springer, pp 1819–1827. https://doi.org/10.1007/978-3-319-95630-5_195
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Fominov, E.V., Ryzhkin, A.A., Shuchev, C.G. (2021). The Investigations of Surface Micro-Hardness of Experimental Hard Alloy Grades. In: Radionov, A.A., Gasiyarov, V.R. (eds) Proceedings of the 6th International Conference on Industrial Engineering (ICIE 2020). ICIE 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-54817-9_16
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