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Abstract
A hot-swaging method was used to determine the processing parameters for producing fully consolidated products from Beta III titanium alloy spherical powders. Four temperatures (1005 K, 1033 K, 1144 K, and 1227 K) and four percentage reductions (25·1, 37·5, 54·2, and 65·2) of the can outside diameter were selected for study. Fully consolidated powder products were obtained by 54·2 and 65·2% reductions at all four temperatures and by 37·5% reduction at 1227 K. The other processing conditions did not give fully dense products.
Room-temperature tensile and fracture toughness properties of the swaged powder products in the heat-treated condition were determined. The fully consolidated swaged powder products had tensile and fracture toughness properties equal to or better than reported properties of wrought products made from ingot Beta III titanium alloy. The properties of the other swaged powder products (not fully dense) reflected lower mechanical properties because of poor consolidation.