Title:
耐食性、耐かじり性、加工性及び表面品質に優れためっき鋼板、及びその製造方法
Document Type and Number:
Japanese Patent JP7373671
Kind Code:
B2
Abstract:
Provided are a plated steel sheet and a method for manufacturing same, the plated steel sheet comprising: a base steel sheet; a Zn-Mg-Al plating layer provided on at least one surface of the base steel sheet; and an Fe-Al inhibition layer provided between the base steel sheet and the Zn-Mg-Al plating layer. The plating layer comprises, by weight%, 4 - 10% of Mg, 5.1-25% of Al and the remainder being Zn and unavoidable impurities with respect to components not including iron (Fe) diffused from the base steel sheet. The plating layer comprises a 24-50% MgZn2 phase in phase fraction. In the MgZn2 phase, an Al single phase is present in the ratio of 1-30% relative to the cross-sectional area of the total MgZn2 phase.
Inventors:
Kim, Seung-Yoo
Park, Kyung Kwan
Hong, Moon Hee
Kim, Hyun-Yoon
Park, Tae Yul
Kim, Mun-S
Sung, Il-ryong
Kim, Tae Hee
Kang, Dae-Jan
Park, Kyung Kwan
Hong, Moon Hee
Kim, Hyun-Yoon
Park, Tae Yul
Kim, Mun-S
Sung, Il-ryong
Kim, Tae Hee
Kang, Dae-Jan
Application Number:
JP2022544033A
Publication Date:
November 02, 2023
Filing Date:
September 24, 2020
Export Citation:
Assignee:
POSCO Holdings Inc.
Steel and Convergence Technology Research Association
POSCO STEREON COMPANY LIMITED
Steel and Convergence Technology Research Association
POSCO STEREON COMPANY LIMITED
International Classes:
C23C2/06; C22C18/00; C22C18/04; C23C2/02; C23C2/26; C23C2/40
Domestic Patent References:
| JP2001020050A | ||||
| JP2002206156A | ||||
| JP2003268519A | ||||
| JP2010018876A | ||||
| JP2018506644A | ||||
| JP6365807B1 |
Foreign References:
| WO2019132412A1 | ||||
| KR1020140074231A | ||||
| KR1020150049254A | ||||
| KR1020150051840A | ||||
| KR1020160078918A | ||||
| KR1020190078435A |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito
Hiroko Hara
Masakazu Ito
Hiroko Hara