Abstract: The invention relates to manufacture of titanium articles from sintered powders. The cost-effective initial powder: 10-50 wt % of titanium powder having ?500 microns in particle size manufactured from underseparated titanium sponge comprising ?2 wt % of chlorine and ?2 wt % of magnesium; 10-90 wt % of a mixture of two hydrogenated powders A and B containing different amount of hydrogen; 0-90 wt % of standard grade refined titanium powder, and/or 5-50 wt % of alloying metal powders. The method includes: mixing powders, compacting the blend to density at least 60% of the theoretical density, crushing titanium hydride powders into fine fragments at pressure of 400-960 MPa, chemical cleaning and refining titanium powders by heating to 300-900° C. and holding for ?30 minutes, heating in vacuum at 1000-1350° C., holding for ?30 minutes, and cooling.

Abstract: The invention relates to the cost-effective manufacture of near-net shape titanium articles from sintered powders containing titanium and all required alloying elements. The cost-effective initial powder composition for subsequent room temperature consolidation and sintering contains: (a) 10-50 wt. % of underseparated titanium powder with ?500 ?m in particle size manufactured from underseparated titanium sponge comprising up to 2 wt. % of chlorine and up to 2 wt. % of magnesium. The underseparated titanium powder costs significantly less than that for fully separated powder of completely reduced sponge; (b) 10-90 wt. % of hydrogenated titanium powder, whereby this powder is a mixture of two hydrogenated powders A and B containing different amount of hydrogen: powder A contains amount of hydrogen in the range of 0.2-1 wt. % and powder B contains amount of hydrogen in the range of 2-3.9 wt. %.