NEUTRON ABSORBING ALLOY BASED ON Ni Russian patent published in 2023 - IPC C22C19/05 C22C30/00 G21F1/08 

FIELD: metallurgy.

SUBSTANCE: invention is related in particular to corrosion-resistant neutron-absorbing alloys, and can be used in nuclear power engineering as a material for sheath tubes - neutron absorbers and in means of transporting and storing spent fuel. The nickel-based neutron-absorbing alloy contains, in wt.%: carbon 0.01-0.04, tungsten 3.50-4.50, chromium 18.50-20.50, gadolinium 2.00-6.00, nitrogen 0.10-0.40, sulfur≤0.008, phosphorus ≤0.008, molybdenum 17.50-20.50, iron 0.01-6.0, manganese 0.20-0.40, silicon 0.10-2.80, zirconium 1.5-2.50, titanium 1.0-1.5, calcium 0.001-0.020, cerium 0.005-0.020, barium 0.005-0.020, if necessary, at least one rare earth element (REE) selected from the group: yttrium, lanthanum, neodymium, praseodymium, scandium 0.005-0.04, nickel and impurities - the rest.

EFFECT: alloy has a high absorbing ability of neutrons, as well as enhanced physical, mechanical and corrosion properties.

3 cl