Study and modeling of hydrogen release from Ti, Zr, Ni, Pd, Pt during linear heating.

New the experimental results of thermally stimulated hydrogen release (TCHR) from plane-parallel plates of Ti, Zr, Ni, Pd, Pt metals with various thicknesses (0.05–1 mm), pre-saturated with hydrogen, under linear heating (1 °C s−1) presented. The electrolytic and Sieverts method for saturate were used. Theoretical models for diffusion and desorption hydrogen release from flat metal samples into vacuum with linear heating were developed. In this case, the processes of diffusion and thermal desorption were taken into account to select the optimal conditions and experimental methods. The TSHR spectra simulated using the MATLAB software package to test the consistency of theory with experiment. By modeling in MATLAB using both the developed models and experimental TSHR spectra, the activation energies of desorption, diffusion and decomposition of hydrides, as well as the preexponential factors in the diffusion and kinetic equations, were determined. • Studied thermal stimulated hydrogen release (TSHR) from different metals allows. • Studied and performed mathematical analysis of hydrogen desorption kinetics. • Developed physical and mathematical models of TSHR. • Simulated hydrogen diffusion, desorption, hydride decay processes with MATLAB. • Determined activation diffusion, desorption and decomposition energy and others. [ABSTRACT FROM AUTHOR]