发明申请
- 专利标题: High Corrosion Resistance Hot dip Galvanized Steel Material
- 专利标题(中): 耐腐蚀性高浸镀锌钢材料
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申请号: US12224967申请日: 2007-03-14
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公开(公告)号: US20090053555A1公开(公告)日: 2009-02-26
- 发明人: Koichi Nose , Kohei Tokuda , Yuichi Sato , Makoto Nakazawa
- 申请人: Koichi Nose , Kohei Tokuda , Yuichi Sato , Makoto Nakazawa
- 优先权: JP2006-076547 20060320; JP2006-102108 20060403; JP2007-024427 20070202
- 国际申请: PCT/JP2007/055778 WO 20070314
- 主分类号: B32B15/20
- IPC分类号: B32B15/20 ; B32B15/01 ; B32B15/18
摘要:
The present invention provides a high corrosion resistance hot dip galvannealed steel material comprised of a Zn-based hot dip plated steel material achieving both a higher corrosion resistance of the plated layer itself by the added elements and sacrificial protection of iron metal by the plated layer or workability free of degradation caused of formation of intermetallic compounds by added elements, that is, a high corrosion resistance hot dip Zn plated steel material characterized in that an alloy plated layer containing Zn: 35 mass % or more, preferably 40 mass % or more, contains a non-equilibrium phase having a heat capacity by differential scanning calorimetry of 1 J/g or more. Furthermore, 5% or more, preferably 50% or more in terms of vol % is an amorphous phase. The alloy layer may contain, by mass %, Mg: 1 to 60% and Al: 0.07 to 59%, may further contain one or more elements selected from Cr, Mn, Fe, Co, Ni, and Cu in a total of 0.1 to 10%, and may in addition contain one or more elements of 0.1 to 10% of La, 0.1 to 10% of Ce, 0.1 to 10% of Ca, 0.1 to 10% of Sn, 0.005 to 2% of P, and 0.02 to 7% of Si.
公开/授权文献
- US08663818B2 High corrosion resistance hot dip galvanized steel material 公开/授权日:2014-03-04
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