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1. 发明申请

WO2003087417A1 HIGH STRENGTH ALUMINUM ALLOY FOR HIGH TEMPERATURE APPLICATIONS 审中-公开
标题翻译：高强度铝合金高温应用
公开(公告)号：WO2003087417A1
公开(公告)日：2003-10-23
申请号：PCT/US2003/010372
申请日：2003-04-03
申请人： THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (NASA)
发明人： LEE, Jonathan, A. , CHEN, Po-Shou
IPC分类号： C22C21/02
CPC分类号： C22C21/04 , C22C32/00 , C22C49/06 , C22F1/043
摘要： A cast article from an aluminum alloy has improved mechanical properties at elevated temperatures. The cast article has the following composition in weight percent: Silicon 6.0 - 25.0, Copper 5.0 - 8.0, Iron 0.05 - 1.2, Magnesium 0.5 - 1.5, Nickel 0.05 - 0.9, Manganese 0.05 -1.2, Titanium 0.05 - 1.2, Zirconium 0.05- 1.2, Vanadium 0.05 - 1.2, Zinc 0.05 - 0.9, Strontium 0.001 - 0.1, Phosphorus 0.001 - 0.1, and the balance is Aluminum, wherein the silicon-to-magnesium ratio is 10 - 25, and the copper-to-magnesium ratio is 4 - 15. The aluminum alloy contains a simultaneous dispersion of three types of A13X compound particles (X= Ti, V, Zr) having a L1 2 crystal structure, and their lattice parameters are coherent to the aluminum matrix lattice. A process for producing this cast article is also disclosed, as well as a metal matrix composite, which includes the aluminum alloy serving as a matrix containing up to about 60% by volume of a secondary filler material.
摘要翻译：来自铝合金的铸造制品在升高的温度下具有改善的机械性能。铸造制品具有以下重量百分比的组成：硅6.0-25.0，铜5.0-8.0，铁0.05-1.2，镁0.5-1.5，镍0.05-0.9，锰0.05-1.2，钛0.05-1.2，锆0.05-1.2 ，钒0.05〜1.2，锌0.05〜0.9，锶0.001〜0.1，磷0.001〜0.1，余量为铝，硅与镁的比例为10〜25，铜与镁的比例为4 铝合金包含具有L12晶体结构的三种类型的A13X化合物颗粒（X = Ti，V，Zr）的同时分散，其晶格参数与铝基质晶格相干。还公开了一种用于生产该铸造制品的方法，以及金属基质复合材料，其包括用作基质的铝合金，其含有高达约60体积％的第二填料材料。

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