Investigation of hydrogenation parameters influence on the hydrogen sorption rate by titanium with nickel layer

Abstract

The influence of hydrogenation parameters on the hydrogen sorption rate by commercially pure titaniumalloy coated by nickel layer was investigated. Sievert apparatus was used for investigation of hydrogen interaction with commercially pure titanium alloy. It was shown that increasing the coating deposition time from 10 to 50 minutes reduces the hydrogen sorption rate more than 7 times. With increasing temperature from 350 °C to 550 °C the hydrogen sorption rate increases more than 20 times in the pressure range of 1-2 atm. Increasing the hydrogen pressure in the chamber from 1 to 2 atm. accelerates the hydrogenation process by several times. The activation energy of hydrogen adsorption increases with hydrogenation pressure.