Structure consists of elongated fine grains of alpha phase and cobalt beryllide phase uniformly distributed throughout the matrix. Equiaxed grains of alpha phase are observed with small nickel beryllide particles uniformly distributed throughout the matrix. Structure consists of slightly elongated grains of alpha phase, and small nickel beryllide particles. The strengthening metastable precipitates are not resolved. Small needle-like secondary beryllides with preferred crystallographic orientation, which precipitate from solid solution during slow cooling after casting, are observed throughout.
Striations are the result of metastable precipitation in the alloy.