PISTON RING WITH COATING APPLIED BY THERMAL SPRAYING AND METHOD OF ITS MANUFACTURING Russian patent published in 2015 - IPC C23C4/06 C22C30/00 C22C33/02 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, in particular to the piston ring for internal-combustion engine with coating applied by the powder thermal spraying. The powder for thermal spraying includes solid lubricants, and has elements content in wt %: 15-30 Fe, 15-30 W, 25-35 Cr, 10-35 Ni, 1-5 Mo, 0.2-3 Al, 3-20 Cu, 1-10 C, 0,1-2 S, 0,1-2 Si.

EFFECT: protecting coating applied by the thermal spraying on the piston ring is characterised by high fracture toughness at high fatigue characteristics, increased wear resistance, well resistance to cake and jamming.

15 cl, 4 dwg, 2 tbl