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Electric-spark hardening of VT3-1 titanium alloy with tungsten-free composite ceramics


The mass transfer and wear resistance of both monolayer and multilayer coatings on VT3-1 alloy are examined. The coatings are deposited by electrospark alloying (ESA) with composite titanium and zirconium refractory ceramics. It is shown that the wear resistance of these electrospark-deposited coatings is 1.6 to 3 times higher in fretting corrosion in unlubricated friction as compared with the conventional WC + 3% Co coating. In addition, the multilayer structure permits four-to fivefold increase in the coating thickness as opposed to the monolayer WC + 3% Co ESA coating.

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Translated from Poroshkovaya Metallurgiya, Vol. 46, No. 9–10 (457), pp. 36–44, 2007.

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Podchernyaeva, I.A., Panashenko, V.M., Panasyuk, A.D. et al. Electric-spark hardening of VT3-1 titanium alloy with tungsten-free composite ceramics. Powder Metall Met Ceram 46, 442–448 (2007).

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