Cobalt-free, iron-base hardfacing alloys.

摘要

Novel wear-resistant, anti-galling, cobalt-free hardfacing iron based alloys for construction of plant or manufacturing facility components exposed to aggressive environments such as components used in the cooling systems of nuclear power plants, have a microstructure consisting of an austenitic matrix and eutectic alloy carbides. The composition by weight is 0.85-1.4% carbon, 5-13% manganese, 1.5-5.5% silicon, 18-27% chromium, 4-12% nickel, up to 6% molybdenum, 0.1-0.3% nitrogen, 0-1% vanadium, 0-1% niobium, 0-1% titanium, 0-1% tantalum, and the balance iron.