Conclusions
A study was made of the electroerosion and cathode weight increase accompanying the ESA of steels with WC-Co hard metals and of some properties of resultant alloyed layers. In ESA the best results are obtained with VK20 alloy under “soft” conditions and with VK15 alloy under “hard” condition. The optimum alloying time is 5–10 min/cm2 in process No. 2 and 3–5 min/cm2 in process No. 5. Under these conditions ESA by the “soft” process (with VK20 alloy) ensures the formation of a hard (2200 kgf/mm2) “white” layer of the same thickness (40 μm).
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B. N. Zolotykh, I. P. Korobova, and E. M. Strygin, “Role of mechanical factors in the process of erosion in a pulse discharge,” in: Physical Principles of the Electric-Spark Treatment of Materials [in Russian], Nauka, Moscow (1966), pp. 63–74.
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Translated from Poroshkovaya Metallurgiya, No. 8(212), pp. 67–71, August, 1980.
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Verkhoturov, A.D., Kirilenko, S.N. & Bondar', V.T. Electric-spark alloying of steels with WC-Co hard metals. Powder Metall Met Ceram 19, 569–572 (1980). https://doi.org/10.1007/BF00789822
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DOI: https://doi.org/10.1007/BF00789822