In this study, nickel-matrix composites reinforced with nickel-aluminide particles are produced by cold spraying and powder metallurgy techniques. A powder mixture of 80 vol% Ni and 20 vol% Ni3Al is used in both processes. Optical microscopy, SEM, and EDX analysis are used to evaluate the microstructural uniformity of the as-fabricated composites, while hardness and Young’s modulus are determined by microindentation tests. Microhardness tests are also conducted after each step of the P/M process in order to evaluate corresponding changes in hardness. The findings are presented and explained.

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