Features of Thermal Diffusion Impregnation with Hydrogen of Porous Material Based on Titanium

Abstract

The effect of bulk porosity on the kinetics of hydrogen thermal diffusion impregnation and on the structure of specimens prepared from different semiproducts, i.e., bars, wires, and fibers of commercially pure titanium, is studied. It is established that the rate of hydrogen absorption by porous titanium is at a maximum at 650°C and it increases with an increase in bulk porosity, pore size and a reduction in typical size of original semiproduct. Simultaneous thermal diffusion impregnation of monolithic and porous material leads to nonuniform distribution of hydrogen between them and correspondingly a change in structure.