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公开(公告)号：US08181690B2
公开(公告)日：2012-05-22
申请号：US12431726
申请日：2009-04-28
申请人： Guangling Song , Bob R. Powell, Jr.
发明人： Guangling Song , Bob R. Powell, Jr.
CPC分类号： B22D19/08 , B32B15/01 , C22C23/00 , C22C23/02 , Y10T428/12729
摘要： A method of forming a coated article is disclosed. The method involves heating a magnesium alloy component, positioning the component in a mold such that a gap exists between component outer surfaces and mold inner surfaces, and heating a magnesium-containing alloy material above its melting temperature, which is lower than that of the component. The material is formed from magnesium alloyed with i) the component element, but at a higher concentration, ii) at least one element that is different than the component element, or iii) the component element and at least one other element. The method further includes introducing the material into the gap, thereby covering at least the outer surfaces of the component, and cooling the material to form a substantially evenly distributed solidified coating on the outer surfaces of the component. The coating has a higher wear and/or corrosion resistance than that of the magnesium alloy component.
摘要翻译： 公开了一种形成涂层制品的方法。 该方法包括加热镁合金部件，将部件定位在模具中，使得在部件外表面和模具内表面之间存在间隙，并且将含镁合金材料加热到高于其成分的熔融温度以下 。 该材料由与i）成分元素合成的镁形成，但是以较高的浓度形成，ii）至少一种不同于组分元素的元素，或iii）组分元素和至少一种其它元素。 该方法还包括将材料引入到间隙中，从而至少覆盖部件的外表面，并且冷却材料以在部件的外表面上形成基本均匀分布的固化涂层。 该涂层具有比镁合金组件更高的耐磨性和/或耐腐蚀性。
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公开(公告)号：US08852359B2
公开(公告)日：2014-10-07
申请号：US13310110
申请日：2011-12-02
摘要： A method of bonding a metal to a substrate involves forming an oxide layer on a surface of the substrate, and in a molten state, over-casting the metal on the substrate surface. The over-casting drives a reaction at an interface between the over-cast metal and the oxide layer to form another oxide. The other oxide binds the metal to the substrate surface upon solidification of the over-cast metal.
摘要翻译： 将金属接合到基板的方法包括在基板的表面上形成氧化物层，并且在熔融状态下，在基板表面上过度浇铸金属。 过铸造在过铸金属和氧化物层之间的界面处驱动反应以形成另一种氧化物。 另一种氧化物在过铸金属凝固时将金属结合到基底表面。
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公开(公告)号：US07921901B2
公开(公告)日：2011-04-12
申请号：US12103755
申请日：2008-04-16
申请人： Jongcheol Shin , Jongwon B Park , Inwook Hwang , Bob R. Powell, Jr. , Thomas A. Perry , Anil K. Sachdev , Jon T. Carter
发明人： Jongcheol Shin , Jongwon B Park , Inwook Hwang , Bob R. Powell, Jr. , Thomas A. Perry , Anil K. Sachdev , Jon T. Carter
IPC分类号： B22D29/00
CPC分类号： B22D15/02 , B22D19/0009 , B22D21/04
摘要： Some die cast aluminum alloy articles have internal cylindrical surfaces such as the round internal cylinder surfaces of a cylinder block for an internal combustion engine. During casting solidification molten aluminum alloys shrink against the metallic permanent mold tools used to mold and define such internal surfaces, and tend to stick to the tool surfaces making it difficult to remove the casting. The tendency of some aluminum casting alloys to solder to the tool can further intensify sticking. In this invention, an aluminum alloy sleeve is placed on and over the tool surface before casting and the sleeve isolates the tool from the molten aluminum. The sleeve becomes bonded to the casting and facilitates removal of the casting from the tool. The sleeve may be (and preferably is) fully machined from the internal casting surface. The sleeve may be of the same composition as the casting, in which case handling and recycling of machining chips would be facilitated. The practice of the invention is also applicable to die casting of magnesium alloys using magnesium sacrificial sleeves.
摘要翻译： 一些压铸铝合金制品具有诸如用于内燃机的气缸体的圆形内圆柱表面的内圆柱表面。 在铸造凝固期间，熔融铝合金收缩用于模制和限定这种内表面的金属永久模具，并且倾向于粘附到工具表面，使得难以移除铸件。 一些铝铸造合金焊接到工具的趋势可以进一步加剧粘附。 在本发明中，铝合金套筒在铸造之前放置在工具表面上和上方，并且套筒将工具与熔融铝隔离开。 套筒粘合到铸件上并便于从工具中移除铸件。 套筒可以（并且优选地）从内部铸造表面完全加工。 套筒可以具有与铸件相同的组成，在这种情况下，加工芯片的处理和回收将被促进。 本发明的实践也适用于使用镁牺牲套管的镁合金压铸。
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公开(公告)号：US08992696B2
公开(公告)日：2015-03-31
申请号：US13310042
申请日：2011-12-02
CPC分类号： B22D19/04 , Y10T428/24355
摘要： A method of bonding a metal to a substrate involves forming a plurality of nano-features in a surface of the substrate, where each nano-feature is chosen from a nano-pore and/or a nano-crevice. In a molten state, the metal is over-cast onto the substrate surface, and penetrates the nano-features. Upon cooling, the metal is solidified inside the nano-features, where the solidification of the metal forms a mechanical interlock between the over-cast metal and the substrate.
摘要翻译： 将金属键合到衬底的方法包括在衬底的表面中形成多个纳米特征，其中每个纳米特征选自纳米孔和/或纳米缝隙。 在熔融状态下，金属被过度涂覆在基材表面上，并渗入纳米特征。 在冷却时，金属在纳米特征内部固化，其中金属的凝固在过铸金属和基底之间形成机械互锁。
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5.发明授权Methods and systems for predicting very high cycle fatigue properties in metal alloys 有权用于预测金属合金中非常高的循环疲劳性能的方法和系统公开(公告)号：US08155940B2
公开(公告)日：2012-04-10
申请号：US12182314
申请日：2008-07-30
IPC分类号： G06G7/48
CPC分类号： G06F17/5009 , G06F2217/10 , G06F2217/16 , G06F2217/76
摘要： A system and method for predicting fatigue life in metal alloys for very high cycle fatigue applications. The system and method are especially useful for cast metal alloys, such as cast aluminum alloys, where a fatigue endurance limit is either non-existent or hard to discern. Fatigue properties, such as fatigue strength in the very high cycle fatigue region, are based on a modified random fatigue limit model, where the very high cycle fatigue strength and infinite life fatigue strength are refined to take into consideration the sizes of the discontinuities and microstructure constituents since the fatigue life scatter depends upon the presence of discontinuities and microstructure constituents. The sizes of the discontinuities and microstructure constituents that can initiate fatigue cracks can be determined with extreme value statistics, then input to the modified random fatigue limit model.
摘要翻译： 用于预测非常高循环疲劳应用中金属合金疲劳寿命的系统和方法。 该系统和方法对于铸造金属合金（例如铸铝合金）尤其有用，其中疲劳耐力极限不存在或难以辨别。 疲劳性能，如非常高的循环疲劳区域的疲劳强度，基于改进的随机疲劳极限模型，其中非常高的循环疲劳强度和无限寿命疲劳强度得到细化，以考虑到不连续性和微观结构的尺寸 因为疲劳寿命分散取决于不连续性和微结构组分的存在。 可以用极值统计量确定可以引发疲劳裂纹的不连续性和微观组分的尺寸，然后输入到修改的随机疲劳极限模型。
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公开(公告)号：US08968855B2
公开(公告)日：2015-03-03
申请号：US13280383
申请日：2011-10-25
CPC分类号： B22D19/0081 , B22D19/04 , B22D23/02 , Y10T428/23 , Y10T428/239
摘要： A component includes a cast portion and an insert. The cast portion includes a sacrificial suspension device. The insert is configured to provide damping to the component. The sacrificial suspension device is dissolved during a casting process, into a molten material, forming the cast portion such that the insert is fully encapsulated by the cast portion, including the dissolved suspension device.
摘要翻译： 组件包括铸造部分和插入件。 铸造部分包括牺牲悬挂装置。 插入件被配置为向部件提供阻尼。 牺牲悬挂装置在铸造过程中溶解成熔融材料，形成铸造部分，使得插入件被铸造部分完全包封，包括溶解的悬挂装置。
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公开(公告)号：US08889226B2
公开(公告)日：2014-11-18
申请号：US13310135
申请日：2011-12-02
CPC分类号： B22D19/08 , C23C6/00 , Y10S977/762 , Y10S977/781 , Y10S977/89 , Y10S977/891 , Y10T428/12444
摘要： A method of bonding a metal to a substrate is disclosed herein. The method involves forming a nano-brush on a surface of the substrate, where the nano-brush includes a plurality of nano-wires extending above the substrate surface. In a molten state, the metal is introduced onto the substrate surface, and the metal surrounds the nano-wires. Upon cooling, the metal surrounding the nano-wires solidifies, and during the solidifying, at least a mechanical interlock is formed between the metal and the substrate.
摘要翻译： 本文公开了将金属结合到基底的方法。 该方法包括在衬底的表面上形成纳米刷，其中纳米刷包括在衬底表面上延伸的多个纳米线。 在熔融状态下，金属被引入到基板表面上，并且金属围绕着纳米线。 在冷却时，围绕纳米线的金属固化，并且在固化期间，在金属和基底之间形成至少一个机械互锁。
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公开(公告)号：US07146690B2
公开(公告)日：2006-12-12
申请号：US10305375
申请日：2002-11-26
申请人： Thomas B. Stanford, Jr. , Alan L. Browne , Nancy L. Johnson , Leslie A. Momoda , William Barvosa-Carter , Bob R. Powell, Jr.
发明人： Thomas B. Stanford, Jr. , Alan L. Browne , Nancy L. Johnson , Leslie A. Momoda , William Barvosa-Carter , Bob R. Powell, Jr.
CPC分类号： F16B1/0014 , A41D2300/326 , A44B18/0003 , A44B18/0096 , A44D2203/00 , C08L2201/12 , F16B5/07 , F16B2001/0028 , F16B2001/0035 , F16F2224/045 , Y10T24/27 , Y10T24/2783 , Y10T428/24017
摘要： A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof. The hook portion generally includes a support and a plurality of closely spaced upstanding hook elements extending from one side thereof, wherein the plurality of hook elements comprises or incorporates a shape memory alloy fiber. When the hook portion and loop portion are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. Introducing a thermal activation signal to the plurality of hook elements causes a change in shape orientation, flexural modulus property, or a combination thereof that effectively reduces the shear and/or pull off forces in the releasable engagement. In this manner, disengagement of the releasable fastener system provides separation of the hook portion from the loop portion under controlled conditions. Also disclosed herein are processes for operating the releasable fastener system.
摘要翻译： 可释放的紧固件系统包括环部分和钩部分。 环路部分包括支撑件和设置在其一侧的环形材料。 钩部通常包括支撑件和从其一侧延伸的多个紧密间隔的直立钩元件，其中多个钩元件包括或结合形状记忆合金纤维。 当钩部和环部被压在一起时，它们互锁以形成可释放的接合。 通过接合产生的所得到的接头相对于剪切力和拉力相对地抵抗并且剥离强度力弱。 向多个钩元件引入热激活信号导致形状取向，挠曲模量特性或其组合的改变，其有效地减少了可释放接合中的剪切力和/或拉拔力。 以这种方式，可释放的紧固件系统的分离在受控条件下提供了钩部分与环部分的分离。 本文还公开了用于操作可释放紧固件系统的方法。
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