Zirconium and erbium modified Cu-Mn-Al was spray formed in an effort to increase
homogeneity and damping capacity and decrease impurity levels. Although the microstructure
revealed that the optimum spray forming parameters have not yet been achieved, the modified
alloys showed both high damping and resistance to losing that damping over time. The elemental
additions also accelerated the formation of alpha manganese at the grain boundaries during aging.