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 coati...

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Bibliographic Details
Published in:Powder metallurgy and metal ceramics 2007-09, Vol.46 (9-10), p.442-448
Main Authors: Podchernyaeva, I A, Panashenko, V M, Panasyuk, A D, Grigor'ev, O N, Dukhota, A I, Labunets, V F, Zhiginas, V V
Format: Article
Language:English
Subjects:
Alloying
Ceramics
Coatings
Mass transfer
Monolayers
Multilayers
Protective coatings
Titanium alloys
Wear resistance
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Summary: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.
ISSN:1068-1302
1573-9066
DOI:10.1007/s11106-007-0069-6