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SURFACE-HARDENED ALUMINUM-RARE EARTH ALLOYS AND METHODS OF MAKING THE SAME

United States Patent Application

20180080102
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Embodiments of surface-hardened aluminum-rare earth alloys and methods of making the alloys are disclosed. In some embodiments, the alloy comprises aluminum and 4 wt % to 60 wt % of a rare earth component X having a maximum solid solubility of .ltoreq.0.5 wt % in aluminum. The surface-hardened alloy component has an alloy bulk portion and a hardened alloy surface portion. At least a portion of the hardened alloy surface portion has a Vickers hardness that is at least 30% greater than a Vickers hardness of the alloy bulk portion.
Rios, Orlando (Oak Ridge, TN), Babu, Sudarsanam Suresh (Oak Ridge, TN), Dehoff, Ryan R. (Knoxville, TN), Ott, Ryan (Ames, IA), Plotkowski, Alex J. (Oak Ridge, TN), Sims, Zachary C. (Knoxville, TN), Sridharan, Niyanth (Oak Ridge, TN), Weiss, David (Manitowoc, WI), Henderson, Hunter B. (Knoxville, TN)
UT-Battelle, LLC, Eck Industries, Inc., University of Tennessee Research Foundation, Iowa State University Research Foundation, Inc.
15/ 650,743
July 14, 2017
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT [0002] This invention was made with government support under Contract Nos. DE-AC05-00OR22725 and AC02-07CH33258 awarded by the United States Department of Energy. The government has certain rights in the invention.