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An analysis is presented of diffusion coefficients and solubility of hydrogen isotopes in nickel, palladium, and copper. For describing the vibrational spectrum of solutions a harmonic approximation is used, and it is assumed that localized levels exist connected with oscillations of interstitial atoms. Atom jumps are described basing on absolute rate theory. Experimental data regarding the pre‐exponentials in the temperature dependences of solubility, diffusion coefficients, and corresponding isotope effects are consistently described using an estimation model accounting for metal lattice deformation and charge of electron concentration upon dissolution of hydrogen, and assuming a jump mechanism: octa‐ → tetra‐ → → octahedral interstitials.

A method for calculating the isotope effect in the solubility of hydrogen isotopes in f.c.c. metals is proposed. Compared with the previously performed calculations [3 to 5], where only local vibrations of interstitial atom were considered, the change in density of states of solution in the continuous spectrum band is discussed in the present paper. Elastic vibration spectrum analysis of the crystal with an impurity atom in internode is performed in harmonic approximation, utilizing the model of equal central and non‐central interactions between atoms. It is shown that the contribution of the change of a continuous spectrum band to the value of solubility (and isotope effect) is rather small and increases with the increase of temperature and the decrease of principle matrix atom mass.

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Modern innovation technologies in metal pressure forming for transport engineering are presented. The analysis of the blank stress-strain properties impact upon parts quality is carried out. A method for thread surface layer strengthening is considered. The impact assessment of an elongation ratio and anisotropy upon ear values is carried out.