Zinc alloy plated steel material having excellent weldability and processed-part corrosion resistance

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United States of America Patent

PATENT NO 11248287
APP PUB NO 20200157672A1
SERIAL NO

16773101

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Abstract

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Zn alloy plated steel material having excellent weldability and processed-part corrosion resistance and a method for production of Zn alloy plated steel material are provided. In the Zn alloy plated steel material comprising base steel material and a Zn alloy plating layer, the Zn alloy plating layer includes, by wt %, Al: 0.1-5.0%, Mg: 0.1-5.0%, as well as a remainder of Zn and inevitable impurities. The Zn alloy plated steel material includes a lower interface layer and an upper interface layer between the base steel material and the Zn alloy plating layer, wherein the lower interface layer is formed on the base steel material and has a dense structure, and the upper interface layer is formed on the lower interface layer and has a network-type or island-type structure.

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Patent Owner(s)

Patent OwnerAddress
POSCO CO LTDPOHANG-SI GYEONGSANGBUK-DO 37859

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Jong-Sang Gwangyang-si, KR 41 121
Kim, Sang-Heon Gwangyang-si, KR 65 300
Kim, Tae-Chul Gwangyang-si, KR 31 47
Oh, Min-Suk Gwangyang-si, KR 12 55
Sohn, Il-Ryoung Gwangyang-si, KR 43 204
Yoo, Bong-Hwan Gwangyang-si, KR 13 40
Yun, Hyun-Chu Seoul, KR 5 19

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