Cavitation resistance of modified surface layers of alloyed steels
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The cavitation strength of 15Kh11MF and 15Kh12VNMF steels after nitriding and deposition of vacuum arc titanium and titanium nitride coatings is investigated. Kinetic curves of fracture of specimens under the action of cavitation and polarization curves in a 3% aqueous solution of NaCl are obtained, and the microhardness is measured. A steel–coatings system is thermocycled by the scheme 293 K–543 K–293 K with cooling in a 3% NaCl solution. The serviceability of the system is confirmed.
Keywordscavitation resistance of steels nitriding coatings serviceability
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