| CPC C23C 28/021 (2013.01) [C21D 1/74 (2013.01); C21D 6/001 (2013.01); C21D 6/002 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/0263 (2013.01); C21D 8/0278 (2013.01); C21D 9/46 (2013.01); C22C 33/04 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C22C 38/38 (2013.01); C23C 2/02 (2013.01); C23C 2/024 (2022.08); C23C 2/26 (2013.01); C23C 2/28 (2013.01); C25D 3/20 (2013.01); C25D 5/36 (2013.01); C21D 2251/02 (2013.01); C23C 2/06 (2013.01); C23C 2/40 (2013.01); Y10T 428/12958 (2015.01)] | 16 Claims |

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1. An alloyed galvanized steel sheet comprising:
a Si-containing cold-rolled steel sheet containing Si in an amount of 0.1 mass % or more and 3.0 mass % or less;
an Fe-based electroplating layer formed on at least one surface of the Si-containing cold-rolled steel sheet with a coating weight per surface of more than 20.0 g/m2; and
an alloyed galvanized layer formed on the Fe-based electroplating layer, wherein
crystal orientations of the Fe-based electroplating layer and the Si-containing cold-rolled steel sheet are integrated at a ratio of more than 50% at an interface between the Fe-based electroplating layer and the Si-containing cold-rolled steel sheet.
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