Research Institute of Industrial Science & Technology

Posco

Posco Co., Ltd

Posco Holdings Inc.

Postech Academy-industry Foundation

Jae In Jeong

Ji Hoon Yang

Yong Hwa Jung

Tae Yeob Kim

Tae-Yeob Kim

Kyung Hwang Lee

Yonghwa Jung

Hye Jeong Kim

Han Na Hwang

Chan Cuk Hwang

Yong Gyun Jung

The present invention relates to an alloy-coated steel sheet comprising: a steel sheet, and Al—Mg—Si—Zn alloy layer positioned on the steel sheet, wherein the Al—Mg—Si—Zn alloy layer comprises a Mg—Zn alloy phase, and wherein the Mg—Zn alloy phase comprises MgZnand MgZn, and the Mg—Zn alloy phase further comprises at least one of MgZn, MgZn, MgZnand MgZn.

Alloy coated steel sheet

Provided are an alloy coating steel plate and a method of manufacturing the same, and in this case, the alloy coating steel plate includes a steel, and an Al&#x2014;Mg&#x2014;Si alloy layer positioned on the steel plate, wherein the Al&#x2014;Mg&#x2014;Si alloy layer is formed to include Mg&#x2014;Si alloy grains in an alloy layer configured in an Al&#x2014;Mg alloy phase.

Alloy-coated steel sheet and manufacturing method therefor

Provided is an alloy-coated steel sheet and a manufacturing method thereof. The alloy-coated steel sheet includes: a steel sheet; and an Al&#x2014;Mg&#x2014;Si alloy layer disposed on the steel sheet, wherein the Al&#x2014;Mg&#x2014;Si alloy layer has a form in which Mg&#x2014;Si alloy grains are included in an alloy layer consisting of an Al&#x2014;Mg alloy phase.

Alloy-coated steel sheet and manufacturing method thereof

A black plated steel sheet includes a steel sheet and an Al&#x2014;Mg&#x2014;Si-based plating layer disposed on one surface or both surfaces of the steel sheet; in which the plating layer includes a black layer on the outermost surface thereof, and the black layer has a weight ratio of O to (Al+Mg+Si+O) of 0.01 to 0.6.

Black plated steel sheet and manufacturing method thereof

The present invention relates to an aluminum-magnesium coated steel plate using vacuum coating, wherein an aluminum-magnesium coating layer is constituted by 1 to 45 wt % of magnesium, a balance of aluminum, and other inevitable impurities, and an AlMgalloy phase is formed in the aluminum-magnesium coating layer by performing heat treatment of the steel plate.

Steel sheet coated with aluminum-magnesium

An exemplary embodiment of the present invention provides a coated steel sheet on which a magnesium-aluminum alloy coating layer is formed, including: a steel sheet; and a coating layer configured to include a first magnesium-aluminum alloy layer formed on a top surface of the steel sheet and a second magnesium-aluminum alloy layer formed on a top surface of the first magnesium-aluminum alloy layer, wherein a magnesium content of the first magnesium-aluminum alloy layer is higher than that of the second magnesium-aluminum alloy layer.

Magnesium-aluminum coated steel sheet

A graphene-coated steel sheet and a method for manufacturing the same are provided. The graphene-coated steel sheet includes a steel sheet and a graphene layer formed on the steel sheet. Therefore, the graphene-coated steel sheet can be useful in preventing corrosion of iron, such as oxidation of iron, and has remarkably excellent thermal conductivity and electrical conductivity, as well as excellent heat resistance resulting from thermal stability of graphene. Also, the method can be useful in manufacturing a high-quality graphene-coated steel sheet having a monocrystalline form and showing substantially no defects or impurities.

Growing community of inventors

Pohang-si, South Korea

Jae In Jeong