Hard material sintered compact with a nickel- and cobalt-free, nitrogenous steel as binder of the hard phase
AssigneeBASF SE
InventorsWerner Hesse, Hans Wohlfromm, Peter Uggowitzer, Markus Speidel
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Abstract
Hard sintered moldings having a nickel- and cobalt-free, nitrogen-containing steel as a binder of the hard phase, processes for the powder metallurgical production of these hard sintered moldings, in particular by powder injection molding, and powder injection molding materials for the production of these hard sintered moldings by powder injection molding.
Claims5
A hard sintered molding having a nickel- and cobalt-free, nitrogen-containing steel as a binder and a hard material as the hard phase, the binder being an austenitic iron alloy which contains not more than 0.5% by weight of carbon, from 2 to 26% by weight of manganese, from 11 to 24% by weight of chromium, from 2.5 to 10% by weight of molybdenum, not more than 8% by weight of tungsten and from 0.55 to 1.2% by weight of nitrogen.
A thermoplastic injection molding material which contains an austenitic iron alloy, which contains not more than 0.5% by weight of carbon, from 2 to 26% by weight of manganese, from 11 to 24% by weight of chromium, from 2.5 to 10% by weight of molybdenum, not more than 8% by weight of tungsten and from 0.55 to 1.2% by weight of nitrogen, or a nitrogen-free precursor of this iron alloy in powder form, a hard material in powder form, and a thermoplastic.
Dependencies are inferred from the claim text.