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2. 发明授权

US06692585B2 Ferritic Fe-Cr-Ni-Al alloy having exellent oxidation resistance and high strength and a plate made of the alloy 失效
标题翻译：具有耐氧化性和高强度的铁素体Fe-Cr-Ni-Al合金和由合金制成的板
公开(公告)号：US06692585B2
公开(公告)日：2004-02-17
申请号：US10000079
申请日：2001-12-04
申请人： Toshihiro Uehara , Yoshihiro Minagi , Kenichi Inoue
发明人： Toshihiro Uehara , Yoshihiro Minagi , Kenichi Inoue
IPC分类号： C22C3850
CPC分类号： C22C38/50 , C22C38/004 , C22C38/06
摘要： Disclosed is a ferritic Fe—Cr—Ni—Al alloy having excellent oxidation resistance and high strength, which consists essentially of, by mass, 0.003 to 0.08% C, 0.03 to 2.0% Si, not more than 2.0% Mn, from more than 1.0% to not more than 8.0% Ni, from not less than 10.0% to less than 19.0% Cr, 1.5 to 8.0% Al, 0.05 to 1.0% Zr, and the balance of Fe and incidental impurities, wherein an F value is not less than 12% and an S value is not more than 25%, where the F value is defined by the following equation (1) and the S value is defined by the following equation (2): (1) F=−34.3C+0.48Si−0.012Mn−1.4Ni+Cr+2.48Al, and (2) S=Ni+Cr+Al. The Fe—Cr—Ni—Al alloy, after an annealing heat treatment at 600 to 1050° C., has 0.2% yield strength of 550 to 1,000 MPa by a tensile test at room temperature.
摘要翻译：公开了一种具有优异的抗氧化性和高强度的铁素体Fe-Cr-Ni-Al合金，其基本上由以下组成：质量为0.003至0.08％的C，0.03至2.0％的Si，不超过2.0％的Mn， 1.0％以上且8.0％以下的Ni，不低于10.0％至小于19.0％的Cr，1.5至8.0％的Al，0.05至1.0％的Zr，余量为Fe和杂质，其中F值不为小于12％，S值不大于25％，其中F值由下式（1）定义，S值由下式（2）定义：（1）F = -34.3C + 0.48Si-0.012Mn-1.4Ni + Cr + 2.48Al，（2）S = Ni + Cr + Al。 Fe-Cr-Ni-Al合金在600〜1050℃的退火热处理后，在室温下进行拉伸试验，屈服强度为0.2〜0.2MPa。

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