Rapidly solidified aluminum-rare earth element alloy and method of making the same

US12305267B2 · kind B2 · utility

Assignees

• UT-BATTELLE, LLC · US
• University of Tennessee Research Foundation · US
• IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. · US
• Eck Industries, Inc. · US
• Lawrence Livermore National Security, LLC · US

Inventors

• Orlando Rios · Knoxville, US
• Scott K. McCall · Livermore, US
• Ryan T. Ott · Ames, US
• Zachary C. Sims · Knoxville, US
• Michael S. Kesler · Knoxville, US
• Hunter B. Henderson · Knoxville, US
• Michael A. McGuire · Knoxville, US
• David Weiss · Manitowoc, US

Key dates

• Filing date: Feb 21, 2018
• Grant date: May 20, 2025
• Expiry date: Jul 15, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C2200/02
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Disclosed herein are embodiments of rapidly solidified alloys that comprise aluminum, a rare earth element, one or more additional alloying elements, such as aluminum, and an optional additive component. The alloy embodiments exhibit a unique microstructure as compared to microstructures obtained from other alloys that are not rapidly cooled. The disclosed aluminum-rare earth element alloys also exhibit improved mechanical properties without the need for post-processing heat treatments and further do not exhibit substantial coarsening.