Title:
PLATED STEEL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2017/057639
Kind Code:
A1
Abstract:
This plated steel material has a steel material, a plating layer that covers the surface of the steel material, and an interface alloy layer formed at the boundary between the steel material and the plating layer, wherein: the compositional makeup of the plating layer includes, in mass%, 20-83% Zn and 2.5-46.5% Al, the remaining portion being Mg and impurities, and the Mg content being not less than 10%; the structure of the plating layer comprises a quasicrystal phase, a MgZn2 phase, and a remaining structure; the area fraction of the quasicrystal phase is 30-60%; at least 90% by number of the quasicrystal phase is a quasicrystal phase of which the particle size in the longitudinal axis direction thereof is 0.05-1.0 µm; the thickness of the plating layer is not less than 0.1 µm; and the thickness of the interface alloy layer is not greater than 500 nm.
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Inventors:
KOBAYASHI AKINOBU (JP)
TOKUDA KOHEI (JP)
SHIMODA NOBUYUKI (JP)
GOTO YASUTO (JP)
MATSUMURA KENICHIRO (JP)
TOKUDA KOHEI (JP)
SHIMODA NOBUYUKI (JP)
GOTO YASUTO (JP)
MATSUMURA KENICHIRO (JP)
Application Number:
PCT/JP2016/078935
Publication Date:
April 06, 2017
Filing Date:
September 29, 2016
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
C23C14/14; B32B15/01; C22C18/00; C22C21/00; C22C23/02; C22C23/04; C22C30/06; C23C14/16
Foreign References:
| JP2012528247A | 2012-11-12 | |||
| JP2011190507A | 2011-09-29 | |||
| JP2008255464A | 2008-10-23 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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