Powders (Jun 2023)

Hot Consolidation of Titanium Powders

  • Gennady A. Pribytkov,
  • Irina A. Firsina,
  • Anton V. Baranovskiy,
  • Vladimir P. Krivopalov

DOI
https://doi.org/10.3390/powders2020029
Journal volume & issue
Vol. 2, no. 2
pp. 484 – 492

Abstract

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A novel method of the hot consolidation metal powders with shear deformation is proposed. The powders were encapsulated into tight containers and compacted after short-term heating in a furnace preheated to 900 °C. The method prevents powder oxidation, peripheral spalling and ensures the removal of the oxide films from the powder surfaces. Commercial titanium powders of different dispersivities and impurity concentrations were hot-compacted. The microstructure, hardness and bending strength of the compacts were investigated. The compacts from fine PTOM-1 powder, containing 0.32% of hydrogen, reveal the greatest values of the hardness and bending strength. Additional annealing results in 60% increase in the bending strength.

Keywords