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Casting of aluminum based wrought alloys and aluminum based casting alloys

机译:铝基锻造合金和铝基铸造合金的铸造

摘要

Preferred embodiments of the present invention include methods that allow for casting alloys, and preferentially casting wrought alloys to circumvent problems such as, for example, hot tearing. Preferred embodiments of the present invention provide for alloys having predominantly spherical primary α-aluminum grains in their microstructure (i.e., substantially free of dendrites) formed by mixing two liquids of differing compositions that are held at predetermined temperatures, such that when mixed they produce a predetermined alloy composition at a predetermined temperature that is inclined to solidify with a predominantly spherical grain structure that minimizes the alloy's tendency towards hot tearing.
机译:本发明的优选实施例包括允许铸造合金,并且优选地铸造变形合金以规避诸如热撕裂的问题的方法。本发明的优选实施方案提供了通过混合保持在预定温度下的两种不同组成的液体而形成的在其微观结构中主要具有球形初级α-铝晶粒(即,基本上不含树枝状晶体)的合金。在预定温度下的预定合金成分倾向于以主要为球形的晶粒结构凝固,从而使合金的热撕裂趋势最小化。

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