Effect of Mechanical Vibration on the Kinetics of Dehydrogenation and Structure Formation of TiH2 Powder Compacts During Electron Beam Sintering

摘要

The effect of mechanical vibrations on the structure formation and mechanical properties of compacts during electron beam sintering is investigated. Using optical microscopy, continuous indentation, and X-ray diffraction, it was established that imposing mechanical vibrations decreases the average titanium grain size by a factor of 1.5-2 and induces residual compressive stresses in the sintered titanium compact. Due to the stresses, greater density, and smaller grains, the ductility and compressive strength of the compacts sintered under mechanical vibrations are higher than those of the compacts sintered in conventional way.