Abstract: The present invention is related to process for producing an amorphous Fe-based bulk metallic glass product, formed of an alloy having a chemical formula of Fe100-a-b-c-d-x-y MaNbbSicBdIxJy wherein: • M is Co and/or Ni, •I is one or more elements of the group consisting of Al, Cr, Cu, Mn, C and P, •J is one or more elements of the group consisting of Ti, S, N and O and wherein a, b, c, d, x and y are satisfying the following conditions: 0 wt. %<a?46. 1 wt. %, 5.4 wt. %?b?12.4 wt. %, 2.2 wt. %?c?4.4 wt. %, 2 wt. %<d?6 wt. %, x?2 wt. % and y?0.2 wt. %, the process comprising the steps of producing a master alloy by melting starting materials, comprising Fe-containing alloys, and by melting said master and pouring the molten alloy into a mold.

Abstract: The present invention is related to a process comprising a cold rolling step, for the production of uncoated, electro-galvanised or hot dip galvanised TRIP steel products, hot rolling a slab of a specific composition, wherein the finishing rolling temperature is higher than the Ar3 temperature, to form a hot-rolled substrate, cooling said substrate to a coiling temperature (CT) between 500° C. and 680° C., coiling said substrate at said coiling temperature, pickling said substrate to remove the oxides, cold rolling said substrate to obtain a reduction of thickness, with a minimum reduction of 40%.

Abstract: The present invention is related to a method for the production of metal coated steel products including steps of: providing a steel product with a metal coating; adding an additional metallic element to the metal coating; subjecting the metal coated steel product to a thermal treatment. The method is characterized in that: prior to the addition of the additional element, the steel product is subjected to a plasma treatment via a dielectric barrier discharge, for cleaning and activating the surface of the metal coating; the additional element is added through a physical vapor deposition technique; the thermal treatment is applied by directing high energy infra red radiation towards the outer surface of the metal coating.

Abstract: The present invention is related to process for producing an amorphous Fe-based bulk metallic glass product, formed of an alloy having a chemical formula of Fe100-a-b-c-d-x-y MaNbbSicBdIxJy wherein: .M is Co and/or Ni, .I is one or more elements of the group consisting of Al, Cr, Cu, Mn, C and P, .J is one or more elements of the group consisting of Ti, S, N and O and wherein a, b, c, d, x and y are satisfying the following conditions: 0 wt. %<a?46. 1 wt. %, 5.4 wt. %?b?12.4 wt. %, 2.2 wt. %?c?4.4 wt. %, 2 wt. %<d?6 wt. %, x?2 wt. % and y?0.2 wt. %, the process comprising the steps of producing a master alloy by melting starting materials, comprising Fe-containing alloys, and by melting said master and pouring the molten alloy into a mould.

Abstract: The present invention is related to a method for the production of metal coated steel products, comprising the steps of: providing a steel product with a metal coating; adding an additional metallic element to said coating; subjecting said product to a thermal treatment, characterized in that: prior to the addition of said additional element, said product is subjected to a plasma treatment via a dielectric barrier discharge, for cleaning and activating the surface of said coating; said additional element is added through a physical vapour deposition technique; said thermal treatment is applied by directing high energy infra red radiation towards the outer surface of said coating.

Abstract: The present invention is related to a steel composition intended to be used in a process including a cold rolling step, for the production of uncoated, electro-galvanized or hot dip galvanized TRIP steel products, the composition being characterized by a specific addition of phosphorus. The latter is added in order to reach the desired mechanical properties (high tensile strength in combination with high elongation) while keeping a good weldability by sufficiently reducing the carbon content. The invention is further related to a process for producing a steel product, and to the steel product obtained, said product having the composition of the invention.

Abstract: The present invention relates to a hot-dip coating alloy composition suitable for galvannealing steel sheet. The addition of 0.02 to 0.11 wt. % Cr to the alloy allows for an increased Al content in the bath, while ensuring a sufficient diffusion of Fe into the Zn coating during annealing. This is particularly advantageous for use in coating lines where galvanised and the galvannealed products are manufacturing alternatively. The addition of Cr allows to lower the annealing temperature and to shorten the residence time of the steel in the annealing furnace. Galvannealing dual phase steels, which should be processed at relatively low temperatures, is therefor greatly facilitated.

Abstract: The present invention aims to produce a cold rolled metal coated multi-phase steel, characterized by a tensile strength of at least 500 MPa, a yield ratio (Re/Rm) lower than 0.65 in skinned conditions, lower than 0.60 in unskinned conditions, and with good metal coating adhesion behavior. In the case of the aluminized steel according to the invention, the steel also has superior resistance to temperature corrosion up to 900° C. and excellent mechanical properties at this high temperature. The hot metal coated steel product having a steel composition with a manganese content lower than 1.5%, chrome content between 0.2 and 0.5%, molybdenum content between 0.1 and 0.25%, and a relation between the chrome and molybdenum content as follows Cr+2 Mo higher than or equal to 0.7%, undergoes a thermal treatment in the hot dip metal coating line defined by a soaking temperature between Ac1 and Ac3, a primary cooling speed higher than 25° C./sec and a secondary cooling speed higher than 4° C./sec.

Abstract: The present invention describes an ultra-low carbon bake hardenable galvanized or galvannealed steel product, having a higher yield strength at the temperature of the molten zinc bath while maintaining a low yield strength and excellent bake hardening properties in a skinpassed condition, BH0 being higher than 35 MPa and BH2 higher than 40 MPa (GI) and BH0>20 MPa and BH2>30 MPa (GA), as well as having a superior paint appearance after stamping and painting. The content in the steel composition of the Ti is comprised between 3.42 N and 3.42 N+60 ppm for a fixed nitrogen content (N), and the Nb-content, comprised between 50 ppm and 100 ppm, is fixed so that no substantial precipitation of niobium carbides will occur during the process.

Abstract: The present invention describes an ultra-low carbon bake hardenable galvanized or galvannealed steel product, having a higher yield strength at the temperature of the molten zinc bath while maintaining a low yield strength and excellent bake hardening properties in a skinpassed condition, BH0 being higher than 35 MPa and BH2 higher than 40 MPa (GI) and BH0>20 MPa and BH2>30 MPa (GA), as well as having a superior paint appearance after stamping and painting. The content in the steel composition of the Ti is comprised between 3,42 N and 3,42 N+60 ppm for a fixed nitrogen content (N), and the Nb-content, comprised between 50 ppm and 100 ppm, is fixed so that no substantial precipitation of niobium carbides will occur during the process.

Abstract: The present invention aims to produce a cold-rolled metal coated multi-phase steel, characterized by a tensile strength of at least 500 MPa, a yield ratio (Re/Rm) lower than 0.65 in skinned conditions, lower than 0.60 in unskinned conditions, and with good metal coating adhesion behavior. In the case of the aluminised steel according to the invention, the steel also has superior resistance to temperature corrosion up to 900° C. and excellent mechanical properties at this high temperature.