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    FORMING OF FERROMAGNETIC METALLIC GLASS BY RAPID CAPACITOR DISCHARGE
    2.
    发明申请
    FORMING OF FERROMAGNETIC METALLIC GLASS BY RAPID CAPACITOR DISCHARGE 审中-公开
    通过快速电容器放电形成非金属金属玻璃

    公开(公告)号：US20140345350A9

    公开(公告)日：2014-11-27

    申请号：US14057500

    申请日：2013-10-18

    Applicant: California Institute of Technology

    Inventor： Georg Kaltenboeck ,  Joseph P. Schramm ,  Marios D. Demetriou ,  William L. Johnson

    IPC: C21D1/38 ,  B21D26/12 ,  C22C1/00

    CPC classification number: C21D1/38 ,  B21D26/12 ,  C21D1/34 ,  C21D1/40 ,  C21D7/13 ,  C21D2201/03 ,  C22C1/002 ,  C22C45/00 ,  C22C45/003 ,  C22F1/00

    Abstract: An apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming magnetic metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, sheet forming, and blow molding in a time frame of less than 1 second.

    Abstract translation: 提供使用快速电容器放电形成（RCDF）工具将磁性金属玻璃均匀加热，流变软化和热塑性地形成网状的装置和方法。 RCDF方法利用电容器中存储的电能的放电，均匀且快速地将金属玻璃合金的样品或电荷加热至非晶材料的玻璃化转变温度与合金的平衡熔点之间的预定“工艺温度” 在几毫秒或更短的时间尺度。 一旦样品被均匀加热，使得整个样品块具有足够低的工艺粘度，它可以通过任何数量的技术成型为高品质的非晶块状制品，包括例如注射成型，动态锻造，冲压锻造，片材成型， 并在小于1秒的时间内吹塑。

    BULK FERROMAGNETIC GLASSES FREE OF NON-FERROUS TRANSITION METALS
    3.
    发明申请
    BULK FERROMAGNETIC GLASSES FREE OF NON-FERROUS TRANSITION METALS 有权
    大容量无氟玻璃，不含非金属过渡金属

    公开(公告)号：US20140332120A1

    公开(公告)日：2014-11-13

    申请号：US14272136

    申请日：2014-05-07

    Applicant: California Institute of Technology

    Inventor： Xiao Liu ,  Marios D. Demetriou ,  William L. Johnson ,  Michael Floyd

    IPC: C22C45/02 ,  C21D1/18

    CPC classification number: C22C45/02 ,  C21D1/18 ,  C22C33/003

    Abstract: Ferrous metal alloys including Fe, Co and optionally Ni with metalloids Si, B and P are provided that are substantially close to the peak in glass forming ability and have a combination of both good glass formability and good ferromagnetic properties. In particular, Fe/Co-based compositions wherein the Co content is between 15 and 30 atomic percent and the metalloid content is between 22 and 24 atomic percent at a well-defined metalloid moiety, have been shown to be capable of forming bulk glassy rods with diameters as large as 4 mm or larger. In addition, incorporating a small content of Ni under 10 atomic percent and additions of Mo, Cr, Nb, Ge, or C at an incidental impurity level of up to 2 atomic percent are not expected to impair the bulk-glass-forming ability of the present alloys.

    Abstract translation: 提供了包含Fe，Co和任选的Ni与准金属Si，B和P的黑色金属合金，其基本上接近玻璃形成能力的峰值，并且具有良好的玻璃形成性和良好的铁磁性能的组合。 特别地，已经表明，在良好限定的准金属部分，Co含量为15至30原子％，准金属含量为22至24原子％的Fe / Co基组合物能够形成块状玻璃棒 直径大至4mm或更大。 此外，在低于10原子％的Ni中加入少量的Ni并且以高达2原子百分比的偶然杂质水平添加Mo，Cr，Nb，Ge或C不会损害本体玻璃形成能力 本合金。

    Forming of metallic glass by rapid capacitor discharge
    6.
    发明授权
    Forming of metallic glass by rapid capacitor discharge 有权
    通过快速电容放电形成金属玻璃

    公开(公告)号：US09309580B2

    公开(公告)日：2016-04-12

    申请号：US14045667

    申请日：2013-10-03

    Applicant: California Institute of Technology

    Inventor： William L. Johnson ,  Marios D. Demetriou ,  Choong Paul Kim ,  Joseph P. Schramm

    IPC: C22F1/10 ,  C21D1/40 ,  C21D1/34 ,  C21D1/38 ,  C21D7/13 ,  C22C45/00 ,  C22F1/00 ,  B21J9/08 ,  H05B3/00

    CPC classification number: C21D7/13 ,  B21J9/08 ,  C21D1/34 ,  C21D1/38 ,  C21D1/40 ,  C21D2201/03 ,  C22C45/00 ,  C22C45/003 ,  C22C45/02 ,  C22C45/10 ,  C22F1/00 ,  C22F1/14 ,  C22F1/186 ,  H05B3/0004

    Abstract: An apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, and blow molding in a time frame of less than 1 second.

    Abstract translation: 提供了使用快速电容器放电形成（RCDF）工具将金属玻璃均匀地加热，流变软化和热塑性地形成网状的装置和方法。 RCDF方法利用电容器中存储的电能的放电，均匀且快速地将金属玻璃合金的样品或电荷加热至非晶材料的玻璃化转变温度与合金的平衡熔点之间的预定“工艺温度” 在几毫秒或更短的时间尺度。 一旦样品被均匀加热，使得整个样品块具有足够低的工艺粘度，它可以通过任何数量的技术成型为高品质的非晶块状物品，包括例如注射成型，动态锻造，冲压锻造和吹塑 在不到1秒的时间内。

    SHEET FORMING OF METALLIC GLASS BY RAPID CAPACITOR DISCHARGE
    8.
    发明申请
    SHEET FORMING OF METALLIC GLASS BY RAPID CAPACITOR DISCHARGE 有权
    通过快速电容器放电形成金属玻璃

    公开(公告)号：US20140047888A1

    公开(公告)日：2014-02-20

    申请号：US14054545

    申请日：2013-10-15

    Applicant: California Institute of Technology

    Inventor： William L. Johnson ,  Marios D. Demetriou ,  Joseph P. Schramm

    IPC: B21C29/00 ,  B21B15/00 ,  B21C37/02

    CPC classification number: B21B27/08 ,  B21B3/00 ,  B21B15/00 ,  B21B2027/086 ,  B21C29/003 ,  B21C37/02 ,  B21J1/006 ,  C21D1/34 ,  C21D1/38 ,  C21D1/40 ,  C21D7/13 ,  C21D2201/03 ,  C22C1/002 ,  C22C45/00 ,  C22C45/003 ,  C22F1/00

    Abstract: An apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, sheet forming, and blow molding in a time frame of less than 1 second.

    Abstract translation: 提供了使用快速电容器放电形成（RCDF）工具将金属玻璃均匀地加热，流变软化和热塑性地形成网状的装置和方法。 RCDF方法利用电容器中存储的电能的放电，均匀且快速地将金属玻璃合金的样品或电荷加热至非晶材料的玻璃化转变温度与合金的平衡熔点之间的预定“工艺温度” 在几毫秒或更短的时间尺度。 一旦样品被均匀加热，使得整个样品块具有足够低的工艺粘度，它可以通过任何数量的技术成型为高品质的非晶块状制品，包括例如注射成型，动态锻造，冲压锻造，片材成型， 并在小于1秒的时间内吹塑。

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