Title:
PLATED STEEL
Document Type and Number:
WIPO Patent Application WO/2015/125887
Kind Code:
A1
Abstract:
The present invention pertains to plated steel that has excellent corrosion resistance, while also being achromatic and having excellent glossiness. The plated steel comprises steel and a first plating layer formed directly or indirectly on the surface of the steel. The first plating layer includes: a total of 5.0-20.0 mass% of at least one element among Fe, Ni and Co; 0.1-20.0 mass% of carbon; and Zn. The δ phase (FeZn10), the Γ phase (Fe3Zn7) and the Γ1 phase (FeZn4) constitute at least 50% of the first plating layer. The surface of the first plating layer satisfies {(2a*)2+(b*)2}0.5≤5.0 when measured in the SCI mode by spectrophotometry using illuminant D65 and a 10° field of view, and the surface of the plating has a gloss of 80 or higher as measured according to the 60° specular gloss test (Gs60°).
Inventors:
GOTO YASUTO (JP)
FUTABA TAKASHI (JP)
KOBAYASHI AKINOBU (JP)
FUTABA TAKASHI (JP)
KOBAYASHI AKINOBU (JP)
Application Number:
PCT/JP2015/054667
Publication Date:
August 27, 2015
Filing Date:
February 19, 2015
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
C25D5/26; C23C28/02; C25D3/56
Foreign References:
| JPS6314890A | 1988-01-22 | |||
| JPH0331496A | 1991-02-12 | |||
| JPS63162895A | 1988-07-06 | |||
| JP2004346364A | 2004-12-09 | |||
| JP2011252182A | 2011-12-15 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
Aoki 篤 (JP)
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