A method of making a nanoparticle reinforced metal matrix component is provided. The method involves solid state processing nanoparticles into a metal matrix material at solid state processing conditions to form a master alloy. At least a portion of the master alloy is added to a mass of metal melt to produce the nanoparticle reinforced metal matrix component.
 This invention was made with government support under Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.