Effect of surface condition and structure of copper specimens on the kinetics of hydrogen liberation during vacuum degassing

1.	The application of a nickel coating on copper reduces the effect of the surface stages on the rate of hydrogen liberation and improves the reproducibility of measurements.
2.	The role played by grain boundaries in copper specimens is similar to traps with an energy lower than the energy of dissolved hydrogen at regular interstitial sites of the lattice.

Moscow Institute of Steels and Alloys, All-Union Design, Planning, and Scientific-Research Institute of Chemical Machinery. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 41–45, April, 1989.