公开(公告)号：US08906171B2

公开(公告)日：2014-12-09

申请号：US14347711

申请日：2012-09-25

申请人： Ulrika Magnusson ,  Guocai Chai

发明人： Ulrika Magnusson ,  Guocai Chai

IPC分类号： C22C38/42 ,  C22C38/44 ,  C21D7/02 ,  B21C1/00 ,  C22C30/02 ,  C22C38/58 ,  C22C38/00 ,  C22C38/02

CPC分类号： C22C38/58 ,  B21C1/003 ,  C21D8/0205 ,  C21D8/0236 ,  C22C30/02 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44

摘要： The invention relates to a method of producing a TWIP and nano twinned austenitic stainless steel. The austenitic steel should not contain more than 0.018 wt % C, 0.25-0.75 wt % Si, 1.5-2 wt % Mn, 17.80-19.60 wt % Cr, 24.00-25.25 wt % Ni, 3.75-4.85 wt % Mo, 1.26-2.78 wt % Cu, 0.04-0.15 wt % N, and the balance of Fe. In order to form nano twins in the material the austenitic stainless steel should be brought to a temperature below 0° C., and imparted a plastic deformation to such a degree that the desired nano twins are formed, e.g. to a plastic deformation of around 30%. The invention also relates to the thus produced austenitic stainless steel.

摘要翻译： 本发明涉及生产TWIP和纳米孪晶奥氏体不锈钢的方法。 奥氏体钢不应含有大于0.018重量％的C，0.25-0.75重量％的Si，1.5-2重量％的Mn，17.80-19.60重量％的Cr，24.00-25.25重量％的Ni，3.75-4.85重量％的Mo，1.26- 2.78wt％Cu，0.04-0.15wt％N，余量为Fe。 为了在材料中形成纳米双胞胎，应将奥氏体不锈钢的温度降到0℃以下，并赋予塑性变形至达到所需的纳米双胞胎形成的程度。 塑性变形约30％左右。 本发明还涉及由此生产的奥氏体不锈钢。

公开(公告)号：US06267829B1

公开(公告)日：2001-07-31

申请号：US09043296

申请日：1998-08-27

申请人： Lennart Bäckerud ,  Lars Arnberg ,  Guocai Chai

发明人： Lennart Bäckerud ,  Lars Arnberg ,  Guocai Chai

IPC分类号： C22C2102

CPC分类号： C22C21/02 ,  C22C21/04

摘要： The present invention is a method for producing an iron-containing hypoeutectic alloy free from primary platelet-shaped beta-phase of the Al5FeSi in the solidified structure by the steps (a) providing an iron-containing aluminum alloy having a composition within the following limits, in weight percent, 6-10% Si, 0.05-1.0% Mn, 0.4-2% Fe, at least one of 1) 0.01-0.8% Ti and/or Zr 2) 0.005-0.5% Sr and/or Na and/or Ba, 0-6.0% Cu, 0-2.0% Cr, 0-2.0% Mg, 0-6.0% Zn, 0-0.1 % B balance aluminum (b) controlling and regulating precipitation path during solidification such that the precipitation of Fe containing intermetallic phases starts with the precipitation of the hexagonal phase of the Al8Fe2Si by (b1) controlling the condition of crystallization by addition of one or more of Fe, Ti, Zr, Sr, Na and Ba within the limits specified in step (a) and (b2) identifying the phases or morphology of the phases that precipitates during the solidification and correct the addition one or more times in order to obtain desired precipitation path and (c) solidifying the alloy at the desired solidification rate.

摘要翻译： 本发明是通过步骤（a）提供具有以下限度的组成的含铁铝合金制造在固化结构中不含Al5FeSi的初级片状β相的含铁亚共晶合金的方法 ，重量百分比为6-10％的Si，0.05-1.0％的Mn，0.4-2％的Fe，1）0.01-0.8％的Ti和/或Zr 2中的至少一种）0.005-0.5％的Sr和/或Na和 /或Ba，0-6.0％Cu，0-2.0％Cr，0-2.0％Mg，0-6.0％Zn，0-0.1％B余量铝（b）控制和调节凝固过程中的沉淀路径，使沉淀 含有金属间相的Fe开始于通过（b1）通过在步骤（a）中规定的限度内加入Fe，Ti，Zr，Sr，Na和Ba中的一种或多种来控制结晶条件来开始Al8Fe2Si的六方相析出 ）和（b2）鉴定凝固过程中析出的相的相或形貌，并在...中进行一次或多次的添加 以获得所需的沉淀路径和（c）以期望的固化速率固化合金。

公开(公告)号：US10378093B2

公开(公告)日：2019-08-13

申请号：US13996243

申请日：2011-12-21

申请人： Guocai Chai

发明人： Guocai Chai

IPC分类号： C22F1/18 ,  C21D6/04

摘要： A method of producing a nano twinned commercially pure titanium material includes the step of casting a commercially pure titanium material, that apart from titanium, contains not more than 0.05 wt % N; not more than 0.08 wt % C; not more than 0.015 wt % H; not more than 0.50 wt % Fe; not more than 0.40 wt % O; and not more than 0.40 wt % residuals. The material is brought to a temperature at or below 0° C. and plastic deformation is imparted to the material at that temperature to such a degree that nano twins are formed in the material.

公开(公告)号：US20140328715A1

公开(公告)日：2014-11-06

申请号：US14347711

申请日：2012-09-25

申请人： Ulrika Magnusson ,  Guocai Chai

发明人： Ulrika Magnusson ,  Guocai Chai

IPC分类号： C22C38/58 ,  C22C38/44 ,  B21C1/00 ,  C22C38/02 ,  C22C38/00 ,  C22C30/02 ,  C22C38/42

CPC分类号： C22C38/58 ,  B21C1/003 ,  C21D8/0205 ,  C21D8/0236 ,  C22C30/02 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44

摘要： The invention relates to a method of producing a TWIP and nano twinned austenitic stainless steel. The austenitic steel should not contain more than 0.018 wt % C, 0.25-0.75 wt % Si, 1.5-2 wt % Mn, 17.80-19.60 wt % Cr, 24.00-25.25 wt % Ni, 3.75-4.85 wt % Mo, 1.26-2.78 wt % Cu, 0.04-0.15 wt % N, and the balance of Fe. In order to form nano twins in the material the austenitic stainless steel should be brought to a temperature below 0° C., and imparted a plastic deformation to such a degree that the desired nano twins are formed, e.g. to a plastic deformation of around 30%. The invention also relates to the thus produced austenitic stainless steel.

摘要翻译： 本发明涉及生产TWIP和纳米孪晶奥氏体不锈钢的方法。 奥氏体钢不应含有大于0.018重量％的C，0.25-0.75重量％的Si，1.5-2重量％的Mn，17.80-19.60重量％的Cr，24.00-25.25重量％的Ni，3.75-4.85重量％的Mo，1.26- 2.78wt％Cu，0.04-0.15wt％N，余量为Fe。 为了在材料中形成纳米双胞胎，应将奥氏体不锈钢的温度降到0℃以下，并赋予塑性变形至达到所需的纳米双胞胎形成的程度。 塑性变形约30％左右。 本发明还涉及由此生产的奥氏体不锈钢。

公开(公告)号：US20150034216A1

公开(公告)日：2015-02-05

申请号：US13996243

申请日：2011-12-21

申请人： Guocai Chai

发明人： Guocai Chai

IPC分类号： C22F1/18

CPC分类号： C22F1/183 ,  C21D6/04 ,  C21D2201/00

摘要： A method of producing a nano twinned commercially pure titanium material includes the step of casting a commercially pure titanium material, that apart from titanium, contains not more than 0.05 wt % N; not more than 0.08 wt % C; not more than 0.015 wt % H; not more than 0.50 wt % Fe; not more than 0.40 wt % O; and not more than 0.40 wt % residuals. The material is brought to a temperature at or below 0° C. and plastic deformation is imparted to the material at that temperature to such a degree that nano twins are formed in the material.

摘要翻译： 制造纳米双重商业纯钛材料的方法包括铸造商业纯钛材料的步骤，除钛之外，钛材料含有不多于0.05重量％的N; 不超过0.08重量％C; 不大于0.015wt％H; 不超过0.50重量％的Fe; 不大于0.40重量％的O; 和不大于0.40重量％的残留物。 将材料置于等于或低于0℃的温度下，在该温度下向材料施加塑性变形，使得材料中形成纳米双胞胎。

公开(公告)号：US06749697B2

公开(公告)日：2004-06-15

申请号：US09796442

申请日：2001-03-02

申请人： Örjan Bergström ,  Pasi Kangas ,  Mattias Klockars ,  Guocai Chai

发明人： Örjan Bergström ,  Pasi Kangas ,  Mattias Klockars ,  Guocai Chai

IPC分类号： C22C3844

CPC分类号： C22C38/44 ,  C22C38/58

摘要： The present invention relates to a duplex stainless steel alloy with austenite-ferrite structure, which in hot extruded and annealed finish shows high strength, good corrosion resistance, as well as good weldability which is characterized in that the alloy contains in weight-% max 0.05% C, 0-2.0% Si 0-3.0% Mn, 25-35% Cr, 4-10% Ni, 2-6% Mo, 0.3-0.6% N, as well as Fe and normally occurring impurities and additions, whereby the content of ferrite is 30-70%.

摘要翻译： 本发明涉及一种具有奥氏体 - 铁素体结构的双相不锈钢合金，其在热挤压和退火处理中表现出高强度，良好的耐腐蚀性以及良好的可焊性，其特征在于该合金的重量％最大0.05 ％C，0-2.0％Si 0-3.0％Mn，25-35％Cr，4-10％Ni，2-6％Mo，0.3-0.6％N，以及Fe和通常存在的杂质和添加物，其中 铁素体含量为30-70％。