TY - JOUR
T1 - A new method for studying thermal desorption of hydrogen from metals based on internal friction technique
AU - Yagodzinskyy, Yuriy
AU - Tarasenko, Oleksandr
AU - Smuk, Sergyi
AU - Aaltonen, Pertti
AU - Hänninen, Hannu
PY - 2001
Y1 - 2001
N2 - Many hydrogenated pure metals and industrial alloys with FCC lattices show a distinct internal friction peak above room temperature caused by the thermal desorption of hydrogen. Based on these observations, a new method for studying the hydrogen diffusivity and the interaction of hydrogen with lattice defects is proposed for the temperature range of 250–500 K. The desorption origin of the peak was studied in detail in hydrogen-charged Inconel 600 alloys with different carbon contents. The peak was shown to possess transient and non-relaxation nature. In some cases, a fine structure of the peak caused by hydrogen traps can be observed. A theoretical model of the thermal desorption effects on the losses of mechanical energy, i.e., internal friction, in metals is developed.
AB - Many hydrogenated pure metals and industrial alloys with FCC lattices show a distinct internal friction peak above room temperature caused by the thermal desorption of hydrogen. Based on these observations, a new method for studying the hydrogen diffusivity and the interaction of hydrogen with lattice defects is proposed for the temperature range of 250–500 K. The desorption origin of the peak was studied in detail in hydrogen-charged Inconel 600 alloys with different carbon contents. The peak was shown to possess transient and non-relaxation nature. In some cases, a fine structure of the peak caused by hydrogen traps can be observed. A theoretical model of the thermal desorption effects on the losses of mechanical energy, i.e., internal friction, in metals is developed.
U2 - 10.1238/Physica.Topical.094a00111
DO - 10.1238/Physica.Topical.094a00111
M3 - Article
SN - 0281-1847
VL - T94
SP - 111
EP - 120
JO - Physica Scripta: Topical Issues
JF - Physica Scripta: Topical Issues
ER -