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公开(公告)号：US08613813B2
公开(公告)日：2013-12-24
申请号：US12409253
申请日：2009-03-23
CPC分类号： 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
摘要： 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.
摘要翻译： 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。
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2.发明授权In-situ ductile metal/bulk metallic glass matrix composites formed by chemical partitioning 有权通过化学分配形成的原位延性金属/块状金属玻璃基体复合材料公开(公告)号：US07244321B2
公开(公告)日：2007-07-17
申请号：US10735148
申请日：2003-12-12
IPC分类号： C22C45/00
摘要： A composite metal object comprises ductile crystalline metal particles in an amorphous metal matrix. An alloy is heated above its liquidus temperature. Upon cooling from the high temperature melt, the alloy chemically partitions, forming dendrites in the melt. Upon cooling the remaining liquid below the glass transition temperature it freezes to the amorphous state, producing a two-phase microstructure containing crystalline particles in an amorphous metal matrix. The ductile metal particles have a size in the range of from 0.1 to 15 micrometers and spacing in the range of from 0.1 to 20 micrometers. Preferably, the particle size is in the range of from 0.5 to 8 micrometers and spacing is in the range of from 1 to 10 micrometers. The volume proportion of particles is in the range of from 5 to 50% and preferably 15 to 35%. Differential cooling can produce oriented dendrites of ductile metal phase in an amorphous matrix. Examples are given in the Zr—Ti—Cu—Ni—Be alloy bulk glass forming system with added niobium.
摘要翻译： 复合金属物体包括无定形金属基质中的延性结晶金属颗粒。 将合金加热至液相线温度以上。 在从高温熔体冷却时，合金化学分隔，在熔体中形成枝晶。 将剩余的液体冷却至低于玻璃化转变温度时，将其冻结至非晶状态，产生在非晶态金属基质中含有结晶颗粒的两相微结构。 延性金属颗粒的尺寸范围为0.1至15微米，间距为0.1-20微米。 优选地，粒度在0.5至8微米的范围内，并且间距在1至10微米的范围内。 颗粒的体积比例在5至50％，优选15至35％的范围内。 差分冷却可以在无定形基质中产生延性金属相的取向树枝状晶体。 在具有添加铌的Zr-Ti-Cu-Ni-Be合金块状玻璃形成系统中给出了实施例。
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公开(公告)号：US20090236017A1
公开(公告)日：2009-09-24
申请号：US12409253
申请日：2009-03-23
CPC分类号： 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
摘要： 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.
摘要翻译： 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。
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4.发明授权In-situ ductile metal/bulk metallic glass matrix composites formed by chemical partitioning 有权通过化学分配形成的原位延性金属/块状金属玻璃基体复合材料公开(公告)号：US06709536B1
公开(公告)日：2004-03-23
申请号：US09890480
申请日：2002-04-02
IPC分类号： C22C4500
摘要： A composite metal object comprises ductile crystalline metal particles in an amorphous metal matrix. An alloy is heated above its liquidus temperature. Upon cooling from the high temperature melt, the alloy chemically partitions, forming dendrites in the melt. Upon cooling the remaining liquid below the glass transition temperature it freezes to the amorphous state, producing a two-phase microstructure containing crystalline particles in an amorphous metal matrix. The ductile metal particles have a size in the range of from 0.1 to 15 micrometers and spacing in the range of from 0.1 to 20 micrometers. Preferably, the particle size is in the range of from 0.5 to 8 micrometers and spacing is in the range of from 1 to 10 micrometers. The volume proportion of particles is in the range of from 5 to 50% and preferably 15 to 35%. Differential cooling can produce oriented dendrites of ductile metal phase in an amorphous matrix. Examples are given in the Zr—Ti—Cu—Ni—Be alloy bulk glass forming system with added niobium.
摘要翻译： 复合金属物体包括无定形金属基质中的延性结晶金属颗粒。 将合金加热至液相线温度以上。 在从高温熔体冷却时，合金化学分隔，在熔体中形成枝晶。 将剩余的液体冷却至低于玻璃化转变温度时，将其冻结至非晶状态，产生在非晶态金属基质中含有结晶颗粒的两相微结构。 延性金属颗粒的尺寸范围为0.1至15微米，间距为0.1-20微米。 优选地，粒度在0.5至8微米的范围内，并且间距在1至10微米的范围内。 颗粒的体积比例在5至50％，优选15至35％的范围内。 差分冷却可以在无定形基质中产生延性金属相的取向树枝状晶体。 在具有添加铌的Zr-Ti-Cu-Ni-Be合金块状玻璃形成系统中给出了实施例。
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