Method of manufacturing crystalline aluminum-iron-silicon alloy

The invention provides a method of manufacturing a crystalline aluminum-iron-silicon alloy, and optionally an automotive component comprising the same, comprising forming a composite ingot including aplurality of crystalline phases by melting aluminum, iron, and silicon raw materials in an inert environment to form a substantially homogenous melt, subsequently solidifying the melt, and annealingthe ingot under vacuum by heating at a temperature in the range of 850 to 1000 degrees centigrade to obtain an annealed crystalline ingot, wherein the predominant crystalline phase is FCC Al3Fe2Si. The raw materials can further include one or more additives such as zinc, zirconium, tin, and chromium. Melting can occur above the FCC Al3Fe2Si crystalline phase melting point, or at a temperature of about 1100 to about 1400 degrees centigrade. Annealing can occur under vacuum conditions. 本发明提供了一种制造晶态铝铁硅合金以及任选的包含所述合金的汽车部件的方法，其包括通过在惰性环境中熔化铝、铁和硅原料形成基本上均匀的熔体，随后固化熔体形成包含多个晶相的复合锭，并通过在850℃至1000℃的温度下加热在真空下退火铸锭，得到退火的晶锭，其中主要的晶相是FCC A