公开(公告)号：US5638886A

公开(公告)日：1997-06-17

申请号：US561565

申请日：1995-11-22

申请人： Michael Kevork Aghajanian ,  Alan Scott Nagelberg ,  Christopher Robin Kennedy

发明人： Michael Kevork Aghajanian ,  Alan Scott Nagelberg ,  Christopher Robin Kennedy

IPC分类号： B22F3/26 ,  C22C1/10 ,  B22D19/14

CPC分类号： B22F3/26 ,  C22C1/1036 ,  C22C2001/1063 ,  C22C2204/00

摘要： The present invention relates to a novel method for forming metal matrix composite bodies and novel products produced by the method. Particularly, a permeable mass of filler material or a preform is provided which has included therein at least some matrix metal powder. Moreover, an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are in communication with the filler material or preform, at least at some point during the process, which permits molten matrix metal, upon contact with the filler material or preform, to spontaneously infiltrate the filler material or preform. The presence of powdered matrix metal in the preform or filler material reduces the relative volume fraction of filler material to matrix metal.

摘要翻译： 本发明涉及一种形成金属基体复合体的新方法和该方法制备的新型产品。 特别地，提供了可渗透的填充材料或预制件，其中包括至少一些基质金属粉末。 此外，渗透增强剂和/或渗透增强剂前体和/或渗透气氛至少在该过程中的某一点处与填料或预型体连通，这允许熔融基体金属在与填充材料接触时或 预成型件，以自发地渗透填料或预制件。 在预成型件或填充材料中存在粉末状基质金属会降低填料与基体金属的相对体积分数。

公开(公告)号：US5848349A

公开(公告)日：1998-12-08

申请号：US356334

申请日：1995-02-03

申请人： Marc Stevens Newkirk ,  Andrew Willard Urquhart ,  Michael Kevork Aghajanian ,  Mark Gordon Mortenson ,  Vilupanur Alwar Ravi ,  Alan Scott Nagelberg

发明人： Marc Stevens Newkirk ,  Andrew Willard Urquhart ,  Michael Kevork Aghajanian ,  Mark Gordon Mortenson ,  Vilupanur Alwar Ravi ,  Alan Scott Nagelberg

IPC分类号： C04B41/51 ,  C22C1/10 ,  B22F3/26

CPC分类号： C04B41/009 ,  C04B41/5155 ,  C22C1/1036 ,  B22F2999/00 ,  C22C2001/1057

摘要： The present invention relates to modifying the properties of a metal matrix composite body by a post formation process treatment and/or a substantially contiguous modification treatment. The post formation process treatment may be applicable to a variety of metal matrix composite bodies produced by various techniques, and is particularly applicable to modifying the properties of a metal matrix composite body produced by a spontaneous infiltration technique. The substantially contiguous modification process may also be used primarily in conjunction with metal matrix composite bodies produced according to a spontaneous infiltration technique. Particularly, at least a portion of the matrix metal of the metal matrix composite body and/or the filler material of the metal matrix composite body is modified or altered during and/or after the formation process.

摘要翻译： PCT No.PCT / US93 / 06065 Sec。 371日期：1995年2月3日 102（e）日期1995年2月3日PCT提交1993年6月25日PCT公布。 WO94 / 00610PC PCT出版物 日本1994年1月6日本发明涉及通过后形成工艺处理和/或基本上连续的改性处理改性金属基质复合体的性质。 后形成处理可以适用于通过各种技术制造的各种金属基复合体，特别适用于通过自发渗透技术制造的金属基复合体的特性。 基本相邻的改性方法也可以主要与根据自发渗透技术制备的金属基质复合体一起使用。 特别地，金属基体复合体的基质金属和/或金属基体复合体的填充材料的至少一部分在形成过程中和/或之后被修饰或改变。

公开(公告)号：US06223805B1

公开(公告)日：2001-05-01

申请号：US08231574

申请日：1994-04-22

申请人： Charles Robert Banning ,  John Thomas Burke ,  Alan Scott Nagelberg ,  Vilupanur Alwar Ravi ,  Michael Allan Richmond ,  Chwen Chih Yang

发明人： Charles Robert Banning ,  John Thomas Burke ,  Alan Scott Nagelberg ,  Vilupanur Alwar Ravi ,  Michael Allan Richmond ,  Chwen Chih Yang

IPC分类号： B22D1914

CPC分类号： C22B21/0092 ,  C22B21/06 ,  C22C1/1036 ,  C22C2001/1047 ,  Y02P10/218

摘要： The present invention relates to a novel method for forming cast metal matrix composite bodies. In particular, the present invention relates to a novel method for forming or recycling metal matrix composite bodies so as to render such bodies in a condition for casting or recasting as a cast metal matrix composite body. Specifically, a scrap metal matrix composite body and preferably a scrap cast metal matrix composite body is placed into a crucible, optionally along with unreinforced matrix metal and/or virgin metal matrix composite material. Whether the scrap and/or virgin materials are placed into the crucible in solid or molten form, the contents of the crucible are ultimately rendered molten to form a composite melt. A means for applying high shearing rates to the composite melt, such as an impeller rotating at high speed is immersed into the composite melt and the composite melt is sheared for a time sufficient to comminute any entrained inclusions such as entrapped oxide skins to a size at which such comminuted inclusions are substantially ameliorated in terms of their effect on the fluidity of the composite melt and the mechanical properties of the subsequent cast metal matrix composite bodies. Upon conclusion of the high intensity shearing process, the high power shearing apparatus is removed from the composite melt and the composite melt is cast using appropriate techniques for casting metal matrix composite material.

摘要翻译： 本发明涉及一种用于形成铸造金属基体复合体的新方法。 特别地，本发明涉及一种用于形成或再循环金属基体复合体的新方法，以使这些物体成为铸造或重铸的状态，作为铸造金属基体复合体。 具体地说，将废金属基质复合体和优选的废铸金属基质复合体放置在坩埚中，任选地与未增强的基体金属和/或原始金属基质复合材料一起。 废料和/或原始材料是否以固体或熔融形式放入坩埚中，坩埚的内容物最终被熔化形成复合熔体。 将高剪切速率施加到复合熔体的方法，例如高速旋转的叶轮，将其浸入复合熔体中，并将​​复合熔体剪切一段时间，足以将任何夹带的夹杂物（例如截留的氧化皮）粉碎至大小 这些粉碎的夹杂物在其对复合材料熔体流动性的影响和随后的铸造金属基体复合体的机械性能方面基本上得到改善。 在高强度剪切过程结束后，从复合熔体中除去高功率剪切装置，并使用合适的铸造金属基复合材料的技术来铸造复合熔体。