Provided is a highly corrosion-resistant plated steel sheet having plating adhesion and resistance to liquid metal embrittlement. A highly corrosion-resistant plated steel sheet comprises a base steel sheet and a plated layer, which sequentially comprises an Fe—Al alloy layer and an MgZn.sub.2 layer from an interface with the base steel sheet.

Provided is a multilayer zinc alloy plated steel material comprising a base steel material and multiple plating layers formed on the base steel material, wherein each of the multiple plating layers includes one of a Zn plating layer, a Mg plating layer, and a Zn—Mg alloy plating layer, and the ratio of the weight of Mg contained in the multiple plating layers to the total weight of the multiple plating layers is from 0.13 to 0.24.

Provided is a multilayer zinc alloy plated steel material comprising a base steel material and multiple plating layers formed on the base steel material, wherein each of the multiple plating layers includes one of a Zn plating layer, a Mg plating layer, and a Zn—Mg alloy plating layer, and the ratio of the weight of Mg contained in the multiple plating layers to the total weight of the multiple plating layers is from 0.13 to 0.24.

Provided is a highly corrosion-resistant plated steel sheet having plating adhesion and resistance to liquid metal embrittlement. A highly corrosion-resistant plated steel sheet comprises a base steel sheet and a plated layer, which sequentially comprises an Fe—Al alloy layer and an MgZn.sub.2 layer from an interface with the base steel sheet.

Provided is a multilayer zinc alloy plated steel material comprising a base steel material and multiple plating layers formed on the base steel material, wherein each of the multiple plating layers includes one of a Zn plating layer, a Mg plating layer, and a Zn—Mg alloy plating layer, and the ratio of the weight of Mg contained in the multiple plating layers to the total weight of the multiple plating layers is from 0.13 to 0.24.

Provided is a Zn—Mg alloy plated steel material comprising: a base steel material; and first to third Zn—Mg alloy layers sequentially formed on the base steel material, wherein the first to third Zn—Mg alloy layers have a Zn single phase, a Mg single phase, a MgZn.sub.2 alloy phase, and a Mg.sub.2Zn.sub.11 alloy phase, an area rate of the MgZn.sub.2 alloy phase included in the first to third Zn—Mg alloy layers is larger than an area rate of the Mg.sub.2Zn.sub.11 alloy phase included in the first to third Zn—Mg alloy layers, and an area rate of a MgZn.sub.2 alloy phase included in each of the first to third Zn—Mg alloy layers is larger than an area rate of a MgZn.sub.2 alloy phase included in the second Zn—Mg alloy layer.

Provided is a plated steel sheet often used as materials for vehicles, home appliances, construction and the like and, more specifically, to a plated steel sheet having a multilayer structure and a method for manufacturing the same.

Provided is a plated steel sheet often used as materials for vehicles, home appliances, construction and the like and, more specifically, to a plated steel sheet having a multilayer structure and a method for manufacturing the same.

Provided is a multilayer zinc alloy plated steel material comprising a base steel material and multiple plating layers formed on the base steel material, wherein each of the multiple plating layers includes one of a Zn plating layer, a Mg plating layer, and a ZnMg alloy plating layer, and the ratio of the weight of Mg contained in the multiple plating layers to the total weight of the multiple plating layers is from 0.13 to 0.24.

Provided is a ZnMg alloy plated steel material comprising: a base steel material; and first to third ZnMg alloy layers sequentially formed on the base steel material, wherein the first to third ZnMg alloy layers have a Zn single phase, a Mg single phase, a MgZn.sub.2 alloy phase, and a Mg.sub.2Zn.sub.11 alloy phase, an area rate of the MgZn.sub.2 alloy phase included in the first to third ZnMg alloy layers is larger than an area rate of the Mg.sub.2Zn.sub.11 alloy phase included in the first to third ZnMg alloy layers, and an area rate of a MgZn.sub.2 alloy phase included in each of the first to third ZnMg alloy layers is larger than an area rate of a MgZn.sub.2 alloy phase included in the second ZnMg alloy layer.