Basf Aktiengesellschaft

Abb Research Ltd.

Alstom

Abb Management Ag

Bohler Edelstahl Gmbh

Ruag Munition

Markus Speidel

Peter J Uggowitzer

Peter Ernst

Hannes Speidel

Hans Wohlfromm

Werner Hesse

Josef Bernauer

Kurt Steinhoff

Alkan Gocmen

Brendon Scarlin

Gian-Carlo Gullo

Nickel-based alloy for high-temperature technology

Nickel-poor austenitic steel

The invention relates to an nickel-poor austenitic steel containing iron and the following components: manganese: less than 9.0% by weight; chrome: less than 16 and a maximum of 22% by weight; nitrogen: more than 0.30 and a maximum of 0.70% by weight; carbon: more than 0.08 and a maximum of 0.30% by weight and silicon: less than 2.0% by weight. The invention also relates to the production and utilization of said steel.

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.

Hard material sintered compact with a nickel- and cobalt-free, nitrogenous steel as binder of the hard phase

Workpiece made from a chromium alloy

A process for the production of a material made of a metal alloy for subsequent forming of the material in the semi-solid state, provides that the metal alloy (X) is brought to a starting temperature that is above the liquidus. An additive is added which is capable of reducing an interfacial surface energy between the solid phase and the liquid phase after the metal alloy has been mixed with the additive and transformed into the semi-solid state. The volume fraction of the additive (Z) is selected in such a way that, in the semi-solid material at a liquid phase fraction (f ) of 15% to 75%, the grain size (D) and the degree of skeletization (f C ) during a holding time (t) of more than 15 minutes remain essentially constant in order to retain the formability of a suspension.

Process for the production of a material made of a metal alloy

Process for the production of a workpiece from a chromium alloy, and its use

A fully martensitic quenching and tempering steel (AP) essentially consists of (measured in % by weight): 8 to 15% of Cr, up to 15% of Co, up to 4% of Mn, up to 4% of Ni, up to 8% of Mo, up to 6% of W, 0.5 to 1.5% of V, up to 0.15% of Nb, up to 0.04% of Ti, up to 0.4% of Ta, up to 0.02% of Zr, up to 0.02% of Hf, at most 50 ppm of B, up to 0.1% of C and 0.12-0.25% of N, the content of Mn+Ni being less than 4% and the content of Mo+W being less than 8%, the remainder being iron and usual impurities resulting from smelting.

Fully martensitic steel alloy

The heat- and creep-resistant steel has a martensitic microstructure produced by a heat-treatment process. The composition of the steel in percent by weight is as follows:

Heat- and creep-resistant steel having a martensitic microstructure

Growing community of inventors

Birmenstorf, Switzerland

Markus Speidel