Aluminum base alloy and method for preparing same

摘要

Aluminum base alloy consisting essentially of from 0.1 to 3.0% boron, from 1 to 10% titanium and the balance essentially aluminum wherein the aluminum matrix contains TiB2 particles dispersed throughout said matrix having an average particle size of less than 1 micron, and wherein the matrix contains clusters of said TiB2 particles greater than 10 microns in size with an average of less than 4 of said clusters per 2 cm<2>. The alloy is prepared by adding a boron containing material and K2TiF6 to a bath of molten aluminum and stirring the molten mixture.