Abstract: The present disclosure relates to a method for producing a semifinished product with modified surface, comprising at least one method step of at least regionally modifying the surface of a coated, skin-pass-rolled, oiled, cleaned metallic steel substrate via low-pressure or atmospheric-pressure plasma treatment of said surface regions with oxygen, argon or a mixture of oxygen and argon as process gas. The present disclosure further relates to the accordingly produced semifinished products and/or flat steel products, optionally formed semifinished products and/or flat steel products, and also to their use.

Abstract: A method for the production of a flat steel product including at least the following steps, completed in a continuous process: providing a flat steel product, wherein a protective metal layer of Zn, a Zn—Al alloy, a Zn—Mg alloy or a Zn—Mg—Al alloy is applied to at least one side by hot dip coating; at least partly removing a native oxide layer present on the surface of the protective metal layer by wetting this surface with an acidic solution of sulfuric acid, sulfurous acid, hydrochloric acid, phosphoric acid, phosphonic acid, nitric acid, formic acid, oxalic acid, acetic acid, citric acid, malic acid, tartaric acid, nitrous acid or hydrofluoric acid; activating the surface of the protective metal layer by applying an aqueous activation solution to the surface of the protective metal layer; and phosphating the activated surface of the protective metal layer by applying an aqueous phosphating solution to the activated surface.

Abstract: This disclosure relates to a method of producing a hot-dip-coated steel sheet and to a hot-dip-coated steel sheet.

Abstract: A striplike or sheetlike steel substrate is hot-dip-coated with a metallic coating based on zinc and has a modified surface. A method includes producing a semifinished product with modified surface. The method includes at least regionally modifying the surface of a coated, skin-pass-rolled, oiled and cleaned metallic steel substrate by an atmospheric-pressure plasma treatment of surface regions with oxygen, air, forming gas or a mixture of two or more of these gases as process gas.

Abstract: The invention relates to a method of skin-pass rolling a hot-dip coated steel sheet, and to a correspondingly hot-dip coated, skin-pass rolled steel sheet.

Abstract: The present disclosure relates to a process for producing a surface-treated and surface-finished sheet steel. A sheet steel having a zinc-based coating is provided, wherein zinc grains are distributed within the coating. The surface-treated sheet steel are skin-pass rolled to form embossed regions and unembossed regions on the surface of the sheet steel provided with a zinc-based coating. Skin-pass rolling is performed with a degree of skin-pass greater than 1% in such a way that due to the force exerted by the skin-pass rolling the zinc grains in the embossed region are altered in dimension relative to the zinc grains in the unembossed region.

Abstract: The invention relates to a hot-dip coated, skin-pass rolled steel sheet.

Abstract: A steel component includes a steel substrate composed of a steel having 0.1-3 wt. % of Mn and optionally up to 0.01 wt. % of B, and an Al-based protective coating applied to the steel substrate. The protective coating has an overall iron- and manganese-free proportion by mass of up to 30% of additional alloy constituents, by mass of Si in the protective coating as additional alloy constituent is between 3 wt. % and 15 wt. % Si, by mass of Mg in the protective coating as additional alloy constituent is up to 1.0 wt. % Mg, and by mass of Zn in the protective coating as additional alloy constituent is between 0.4 wt. % and 25.0 wt. % Zn. The protective coating has a near-surface first Zn-rich layer having a Zn content higher than an average Zn content of the protective coating, and the Zn content of the first Zn-rich layer is more than 5 wt. %.

Abstract: The invention relates to a sheet steel skin-pass rolled with a deterministic surface structure, and to a method for producing it.

Abstract: The invention relates to sheet steel, more particularly a coated sheet steel, which is skin-pass rolled with a deterministic surface structure, and to a method for producing this steel.

Abstract: This disclosure relates to a method of producing a hot-dip-coated steel sheet and to a hot-dip-coated steel sheet.

Abstract: The disclosure relates to a method for temper rolling a steel sheet, to a temper-rolled steel sheet and to a component manufactured therefrom.

Abstract: The invention relates to a steel sheet skin-pass rolled with a deterministic surface structure, and to a method for producing it.

Abstract: The present disclosure relates to a hot-dip-coated steel sheet having a Zn—Mg—Al coating which includes aluminum at between 0.1 and 8.0 wt %, magnesium at between 0.1 and 8.0 wt %, the balance being zinc and unavoidable impurities, wherein the coating comprises zinc grains and further phases of magnesium and/or aluminum and also eutectic structures including at least intermetallic zinc-magnesium phases, wherein a native oxide layer is formed on the coating. In accordance with the present disclosure, the coating beneath the native oxide layer has an area fraction of at least 35% in which there is an average nanohardness of at least 4 GPa.

Abstract: The present disclosure relates to a method for producing a semifinished product with modified surface, comprising at least one method step of at least regionally modifying the surface of a coated, skin-pass-rolled, oiled, cleaned metallic steel substrate via low-pressure or atmospheric-pressure plasma treatment of said surface regions with oxygen, argon or a mixture of oxygen and argon as process gas. The present disclosure further relates to the accordingly produced semifinished products and/or flat steel products, optionally formed semifinished products and/or flat steel products, and also to their use.

Abstract: The invention relates to a striplike or sheetlike steel substrate hot-dip-coated with a metallic coating based on zinc and having a modified surface, and to a method for producing a semifinished product with modified surface, comprising at least one method step of at least regionally modifying the surface of a coated, skin-pass-rolled, oiled and cleaned metallic steel substrate by means of atmospheric-pressure plasma treatment of said surface regions with oxygen, air, forming gas or a mixture of 2 or more of these gases as process gas. The invention further relates to the accordingly produced semifinished products and/or flat steel products, optionally formed semifinished products and/or flat steel products, and to their use.

Abstract: The present disclosure relates to a hot-dip-coated steel sheet having a Zn—Mg—Al coating which includes aluminum at between 0.1 and 8.0 wt %, magnesium at between 0.1 and 8.0 wt %, the balance being zinc and unavoidable impurities, wherein the coating comprises zinc grains and further phases of magnesium and/or aluminum and also eutectic structures including at least intermetallic zinc-magnesium phases, wherein a native oxide layer is formed on the coating. In accordance with the present disclosure, the coating beneath the native oxide layer has an area fraction of at least 35% in which there is an average nanohardness of at least 4 GPa.

Abstract: The invention relates to a sheet steel (1) coated with a zinc-based coating and skin-pass rolled with a deterministic surface structure (2), and to a method for producing it.

Abstract: The invention relates to a sheet steel skin-pass rolled with a deterministic surface structure, and to a method for producing it.

Abstract: The invention relates to a sheet steel (1) coated with a zinc-based coating and skin-pass rolled with a deterministic surface structure (2), and to a method for producing it.