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1. 发明授权

US06194088B1 Stainless steel coated with intermetallic compound and process for producing the same 有权
标题翻译：涂有金属间化合物的不锈钢及其制造方法
公开(公告)号：US06194088B1
公开(公告)日：2001-02-27
申请号：US09331589
申请日：1999-07-01
申请人： Hiroaki Yoshida , Hiroshi Yamada , Fumio Iwane , Junji Imai , Tadashi Hamada , Shinji Fujimoto , Shuji Yamada , Shigetoshi Sakon
发明人： Hiroaki Yoshida , Hiroshi Yamada , Fumio Iwane , Junji Imai , Tadashi Hamada , Shinji Fujimoto , Shuji Yamada , Shigetoshi Sakon
IPC分类号： B32B1518
CPC分类号： C23C28/321 , C23C26/00 , C23C28/023 , C23C28/34 , C23C28/347 , Y10S428/941 , Y10T428/12806 , Y10T428/12937 , Y10T428/12979
摘要： An intermetallic-compound coated stainless steel having excellent rigidity, toughness, wear resistance and corrosion resistance comprises a substrate of a martensite stainless steel having a Vickers hardness of 400 or more, and a hard film having a bottom surface adhered to the substrate and an exposed top surface. The hard film has an outermost layer made of a compound selected from the group consisting of a Ti—Ni intermetallic compound, Ti—Fe intermetallic compound, and a mixture of the Ti—Ni intermetallic compound and a Ti—Cu intermetallic compound. The coated stainless steel can be produced by cladding an outer sheet made of Ti or a Ti alloy to a martensite stainless steel sheet directly or through an intermediate sheet made of Ni, Fe or a Ni—Cu alloy, heating the laminate at a temperature of 900° C. to 1150° C. for 30 seconds to 5 minutes, and then cooling the heated laminate at a cooling rate of 1° C./sec or more.
摘要翻译：具有优异的刚性，韧性，耐磨性和耐腐蚀性的金属间化合物涂布不锈钢包括维氏硬度为400以上的马氏体不锈钢的基材和附着在基材上的底面的硬膜，顶面。该硬膜具有由选自Ti-Ni金属间化合物，Ti-Fe金属间化合物和Ti-Ni金属间化合物与Ti-Cu金属间化合物的混合物组成的组中的化合物制成的最外层。可以通过直接或通过由Ni，Fe或Ni-Cu合金制成的中间片将由Ti或Ti合金制成的外部片材包层到马氏体不锈钢片材上来制造涂覆的不锈钢，在层压体的温度 900℃至1150℃，30秒至5分钟，然后以1℃/秒或更高的冷却速率冷却加热的层压体。

2. 发明授权

US5981089A Ferrous alloy with Fe-Al diffusion layer and method of making the same 失效
标题翻译：含Fe-Al扩散层的铁合金及其制造方法
公开(公告)号：US5981089A
公开(公告)日：1999-11-09
申请号：US650520
申请日：1996-05-20
申请人： Junji Imai , Tadashi Hamada , Shuji Yamada , Hiroshi Yamada , Fumio Iwane
发明人： Junji Imai , Tadashi Hamada , Shuji Yamada , Hiroshi Yamada , Fumio Iwane
IPC分类号： C23C2/12 , C23C10/28 , C23C26/00 , B32B15/01
CPC分类号： C23C2/12 , C23C10/28 , C23C26/00 , Y10T428/12861
摘要： A ferrous alloy is formed with a Fe--Cr stainless steel having a Vickers hardness of 400 or more as a substrate and a Fe--Al diffusion layer having a thickness of 2 to 50 .mu.m. The diffusion layer contains at least 90 vol % of an intermetallic compound of Al and Fe relative to a total volume of the diffusion layer. The Al content included within a depth of at least 2 .mu.m of the diffusion layer is 35 to 65% by weight based upon total weight of a region of the diffusion layer ranging up to the thickness of at least 2 .mu.m. It is preferred to use as the substrate a precipitation-hardening stainless steel comprising 66 to 81.9 wt % of Fe, 15 to 20 wt % of Cr, 3 to 13 wt % of Ni, and one element selected from 3 to 6 wt % of Cu, 0.5 to 2 wt % of Al, and 0.01 to 0.2 wt % of a total of C and N, or a high carbon stainless steel comprising 73 to 89.9 wt % of Fe, 10 to 19 wt % of Cr, 0.1 to 1.2 wt % of C, and less than 3 wt % of Ni. The ferrous alloy may be used for sliding parts such as gears or bearings, and blades of electric shavers or hair clippers.
摘要翻译：使用维氏硬度为400以上的Fe-Cr不锈钢作为基材和厚度为2〜50μm的Fe-Al扩散层形成铁系合金。扩散层相对于扩散层的总体积含有至少90体积％的Al和Fe的金属间化合物。包含在扩散层的至少2μm深度中的Al含量基于扩散层的区域的总重量为至少2μm的厚度的35至65重量％。优选使用沉淀硬化不锈钢，其包含66〜81.9重量％的Fe，15〜20重量％的Cr，3〜13重量％的Ni，1个元素选自3〜6重量％ Cu，0.5〜2重量％的Al和0.01〜0.2重量％的C和N，或含有73〜89.9重量％的Fe，10〜19重量％的Cr，0.1〜1.2的高碳不锈钢的C％，小于3重量％的Ni。铁合金可以用于诸如齿轮或轴承的滑动部件，以及电动剃须刀或剪发器的刀片。

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