The electrospark deposition of AL25 aluminum alloy onto a VK8 cutting plate is studied to show the effect produced by the composition of a tribofilm formed in the cutting process on the wear resistance of the tool. The mass transfer kinetics, microstructure, composition, and microhardness of the deposited layer, and distribution of elements over the cutting edge surface after cutting are determined. It is shown that complex oxides that form on the cutting edge and are more chemically stable than volatile W and Co oxides increase the wear resistance of the tool by a factor of 1.5 to 1.8.
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J. Ma, Y. D. He, J. Wang, and B. D. Sun, “High temperature corrosion behavior of microcrystalline aluminide coating on Q235 steel,” Corr. Eng. Sci. Techn., 44, No. 2, 157–160 (2009).
S. Cadney, G. Goodall, G. Kim, et al., “The transformation of an Al-based crystalline electrode material to an amorphous deposit via the electrospark welding process,” J. All. Compd., 476, No. 1–2, 147–151 (2009).
Wei-fu Wang, Mao-cai Wang, Feng-jiu Sun, et al., “Microstructure and cavitation erosion characteristics of Al–Si alloy coating prepared by electrospark deposition,” Surf. Coat. Techn., 202, No. 21, 5116–5121 (2008).
J. Liang, W. Gao, Z. Li, and Y. He, “Hot corrosion resistance of electro-spark deposited Al and NiCr coatings containing dispersed Y2O3 particles,” Mat. Lett., 58, No. 26, 3280–3284 (2004).
W. Gao, Z. Li, and Y. He, “High temperature oxidation resistant coatings produced by electro-spark deposition,” Wear, 369–372, 579–586 (2001).
A. D. Verkhoturov, L. A. Konevtsov, I. A. Podchernyaeva, et al., “Electrospark hardening of a hard-alloy cutting tool with aluminum and ZrB2 composite ceramics,” Persp. Mater., No. 3, 72–80 (2007).
Tennant Thomas, “Making the grade,” MetlfaX, 454, No. 4, 66–69 (2001).
G. V. Samsonov (ed.), Physicochemical Properties of Oxides [in Russian], Metallurgiya, Moscow (1978), p. 472.
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Translated from Poroshkovaya Metallurgiya, Vol. 51, No. 3–4 (484), pp. 90–96, 2012.
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Podchernyaeva, I.A., Yurechko, D.V., Bochko, A.V. et al. Effect of electrospark deposition of Al–Si alloy on the wear resistance of a hard-alloy cutting plate. Powder Metall Met Ceram 51, 198–203 (2012). https://doi.org/10.1007/s11106-012-9417-2
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DOI: https://doi.org/10.1007/s11106-012-9417-2