WEAR-CORROSION-RESISTANT COPPER-NICKEL ALLOY Russian patent published in 2024 - IPC C22C9/06 C22C19/00 C22C30/02 

FIELD: metallurgy.

SUBSTANCE: invention relates to precision alloys for producing functional coatings with high wear resistance under long-term operating conditions and corrosion resistance when exposed to hydrogen sulphide. The alloy contains, wt.%: nickel 33.0-56.0, zirconium 2.0-6.0, niobium 5.0-8.0, titanium 6.0-9.0, cerium 0.1-0,8, lanthanum 0.3-1.0, yttrium 0.8-1.4, titanium nitride 8.0-12.0, copper - the rest.

EFFECT: alloy has high wear resistance characteristics (no more than 1.2×10⁹ mm/km) in functional coatings during operation for more than 6000 hours, corrosion resistance when exposed to hydrogen sulphide at 0.001-0.003 mm/year, adhesive strength of at least 60 MPa and microhardness of at least 25 GPa.

1 cl, 2 tbl, 2 ex