Welded joint

A welded joint, comprising:

• a first steel sheet and a second steel sheet that are connected to a weld bead zone with an extension direction set as a longitudinal direction in plan view, wherein
• the first steel sheet and the second steel sheet each have a heat-affected zone located around the weld bead zone and a non-heat-affected zone that is not affected by heat from welding,
• in a weld overlap portion, which is a portion where a surface of the first steel sheet and a surface of the second steel sheet face each other, a joint gap, which is a gap present between the first steel sheet and the second steel sheet, is present,
• at least one surface of the first steel sheet and one surface of the second steel sheet, the one surfaces facing each other, each include a base iron and a plating layer on the base iron,
• the plating layer is a plating layer having a chemical composition containing, in mass %,
• Al:
• 10.00 to 70.00%,
• Mg:
• 3.00 to 20.00%, and
• Fe:
• 0.01 to 15.00%, and
• selectively containing one or more elements selected from the group including an element group A, an element group B, an element group C, an element group D, an element group E, an element group F, and an element group G described below, with the balance including 5.00 mass % or more of Zn and impurities,
• when the weld overlap portion is viewed from the extension direction of the weld bead zone, a center axis of the joint gap is virtually extended toward the weld bead zone along a direction perpendicular to the extension direction, and an intersection point of the center axis with an end of the weld bead zone is defined as a tip of the weld overlap portion, and
• in a cross-sectional view cut in a direction perpendicular to the extension direction, the distance between an end of a region that is closest to the weld bead zone and where the thickness of the plating layer is less than 1 μm, the end that is farther from the weld bead zone, and the tip of the weld overlap portion in a direction perpendicular to the extension direction and the direction normal to the surface of the second steel sheet is 1000 μm or less,
• [Element group A]:
• One or two selected from the group including Si:
• greater than 0% and 10.00% or less, and Ca:
• greater than 0% and 4.00% or less
• [Element group B]:
• One or more selected from the group including Sb:
• greater than 0% and 0.5000% or less, Pb:
• greater than 0% and 0.5000% or less, and Sr:
• greater than 0% and 0.5000% or less
• [Element group C]:
• One or more selected from the group including Cu:
• greater than 0% and 1.0000% or less, Ti:
• greater than 0% and 1.0000% or less, Cr:
• greater than 0% and 1.0000% or less, Nb:
• greater than 0% and 1.0000% or less, Ni:
• greater than 0% and 1.0000% or less, Mn:
• greater than 0% and 1.0000% or less, Mo:
• greater than 0% and 1.0000% or less, Co:
• greater than 0% and 1.0000% or less, and V:
• greater than 0% and 1.0000% or less
• [Element group D]:
• One or more selected from the group including Sn:
• greater than 0% and 1.0000% or less, In:
• greater than 0% and 1.0000% or less, and Bi:
• greater than 0% and 1.0000% or less
• [Element group E]:
• One or more selected from the group including Zr:
• greater than 0% and 1.0000% or less, Ag:
• greater than 0% and 1.0000% or less, and Li:
• greater than 0% and 1.0000% or less
• [Element group F]:
• One or more selected from the group including La:
• greater than 0% and 0.5000% or less, Ce:
• greater than 0% and 0.5000% or less, and Y:
• greater than 0% and 0.5000% or less
• [Element group G]:
• B:
• greater than 0% and 0.5000% or less.