Plated Steel Sheet And Member For Automobile

Abstract: The present invention uses a plated steel sheet equipped with a plating layer disposed on at least part of the surface of a steel sheet, wherein: the plating layer comprises Al in the amount of 10.00-30.00%, Mg in the amount of 1.00-15.00%, and Fe in the amount of 0.01-15.00%, with the remainder being Zn and impurities; the surface of the plating layer is an uneven surface; a cross-section of the plating layer reveals that the relationship between the length Lo of the plating layer in the longitudinal direction of the cross-section in an observed region and the total length Lr of a contour line on the surface of the plating layer in the observed region satisfies the following formula (1); the plating layer includes a plurality of mass-like binary eutectic structures and/or a plurality of mass-like ternary eutectic structures; and at least some of the plurality of mass-like binary eutectic structures or the plurality of mass-like ternary eutectic structures are continuously present from the surface of the plating layer to a location equal to 1/2 of the average thickness of the plating layer. Formula (1): (Lr-Lo)/Lo×100=2.0 (%)

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents