C21D2201/00

QUENCHED STEEL SHEET HAVING EXCELLENT STRENGTH AND DUCTILITY AND METHOD FOR MANUFACTURING SAME
20190233915 · 2019-08-01 ·

Disclosed are a quenched steel sheet and a method for manufacturing the same. The quenched steel sheet according to an aspect of the present invention contains, in terms of wt %, C: 0.050.25%, Si: 0.5% or less (excluding 0), Mn: 0.12.0%, P: 0.05% or less, S: 0.03% or less, the remainder Fe, and other unavoidable impurities, wherein a refined structure of the steel sheet comprises 90 volume % or more of martensite with a first hardness and martensite with a second hardness.

METHOD FOR MANUFACTURING REFERENCE PIECE FOR MEASURING RETAINED AUSTENITE
20240182994 · 2024-06-06 · ·

The manufacturing method of the reference piece for measuring retained austenite includes performing quenching and tempering a metal member after performing nano-crystallization on at least a portion of a surface of the metal member.

Method for processing a plate workpiece

A workpiece made of plate is subjected to a treatment which locally modifies its magnetic permeability. Subsequently, the magnetic permeability of the workpiece is examined locally resolved by a probe in order to find at least one surface region which is suitable for intended processing, and the processing is performed locally limited to the selected region.

Method for the production of a seamless, multilayered tubular product, and round or polygonal block for use in this method

In a method for the production of a seamless, multilayered tubular product, a further layer is applied through hardfacing on a base layer of a round or polygonal block, with the further layer made of a metallic material which is different than a metallic material of the base layer. The round or polygonal block with hardfaced further layer is hot formed to produce a tubular product with reduced wall thickness and outer perimeter in one or more stages. A diffusion layer is established between the base layer and the further layer through heat treatment before hot forming and/or after hot forming, thereby producing a thickness of the diffusion layer of at least 5 m with the proviso that the thickness of the diffusion layer is 0.1% to 50% of a thickness of the further layer, with the thickness of the further layer being equal to or greater than 100 m.

AL-SI COATED PRESS HARDENING COMPONENT, A PREPARATION METHOD AND USE THEREOF
20240271238 · 2024-08-15 · ·

An AlSi coated press hardening component, wherein the AlSi coating comprises a low-Al content ferrite layer with an Al content of less than 5 wt % and a thickness of greater than 5 ?m, and having a maximum bending angle of the AlSi coated press hardening component is greater than 65?. The thickness of the tough low-Al content ferrite layer in the AlSi coating after hot stamping, reaching 5-100 ?m, by improving the hot stamping process, so that the formation or propagation of cracks on the surface or the coating is effectively prevented, and the bendability of the pre-coated steel after hot stamping is improved. At the same time, the hot stamping process of the present invention can take into account or optimize the microstructure of the steel substrate to further improve the bendability and tensile property of the whole material.

Method of scale substrate manufacture

The present invention relates to a method for producing a magnetic substrate for an encoder scale. The method comprising the step of mechanically working the substrate, wherein the substrate is cooled prior to the mechanical working step. In one embodiment, a stainless steel substrate is used. The stainless steel may comprise an austenite (non-magnetic) phase and a martensite (magnetic) phase. Mechanically working and cooling in this manner increases the amount of magnetic (martensite) phase material that is formed, thereby improving the magnetic contrast when non-magnetic (austenite) marking are subsequently formed on the substrate by laser marking.

METHODS OF FORMING COMPONENTS UTILIZING ULTRA-HIGH STRENGTH STEEL AND COMPONENTS FORMED THEREBY
20180230563 · 2018-08-16 ·

Components and methods for forming components utilizing ultra-high strength steel are provided. A first method includes the steps of providing a blank of ultra-high strength steel, cold forming the blank into an unfinished component, and applying a coating to the outer surface of the unfinished component that is adapted to inhibit the formation of a ferrite soft layer on the component during heating thereof. A second method includes the steps of providing a blank of heavy gauge thickness ultra-high strength steel, cold forming the blank into a finished component, heating the finished component and quenching the component without the use of tooling.

COPPER-ALLOY CAPPING LAYERS FOR METALLIZATION IN TOUCH-PANEL DISPLAYS

In various embodiments, electronic devices such as touch-panel displays incorporate interconnects featuring a conductor layer and, disposed above the conductor layer, a capping layer comprising an alloy of Cu and one or more refractory metal elements selected from the group consisting of Ta, Nb, Mo, W, Zr, Hf, Re, Os, Ru, Rh, Ti, V, Cr, and Ni.

METHOD AND DEVICE FOR GENERATING DEFORMATION TWINNING IN A METAL
20180119246 · 2018-05-03 ·

A method of generating twin lamellas in a metal body includes the steps of introducing the metal body into a chamber, filling the chamber with a cooling medium having a temperature that will enable generation of twin lamellas in the metal body upon deformation thereof, and deforming the metal body while the latter is surrounded by the cooling medium. The cooling medium surrounds the metal body upon deformation of the latter is in a gaseous state. The present disclosure also relates to a device for generating twin lamellas in the metal body, the device including a chamber, a chamber inlet connected to a cooling medium source, and a deformation device arranged to deform the metal body. The deformation device is positioned inside the chamber so that the metal body will be surrounded by the cooling medium in a gaseous state while being deformed by the deformation device.

Copper-alloy capping layers for metallization in touch-panel displays

In various embodiments, electronic devices such as touch-panel displays incorporate interconnects featuring a conductor layer and, disposed above the conductor layer, a capping layer comprising an alloy of Cu and one or more refractory metal elements selected from the group consisting of Ta, Nb, Mo, W, Zr, Hf, Re, Os, Ru, Rh, Ti, V, Cr, and Ni.