The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 09, 2021
Filed:
May. 21, 2018
GM Global Technology Operations Llc, Detroit, MI (US);
Zhongyi Liu, Troy, MI (US);
Tengjiao Qi, Clinton Township, MI (US);
James R. Salvador, Royal Oak, MI (US);
Ratandeep S. Kukreja, Warren, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
Provided is a method of manufacturing a crystalline aluminum-iron-silicon alloy, and optionally an automotive component comprising the same, comprising forming a composite ingot including a plurality 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 annealing the ingot under vacuum by heating at a temperature in the range of 850° C. to 1000° C. yield an annealed crystalline ingot wherein the predominant crystalline phase is FCC AlFeSi. The raw materials can further include one or more additives such as zinc, zirconium, tin, and chromium. Melting can occur above the FCC AlFeSi crystalline phase melting point, or at a temperature of about 1100° C. to about 1400° C. Annealing can occur under vacuum conditions.