Eleventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. IV France 06 (1996) C8-353-C8-356
Effect of Hydrogen Precharging on Grain Boundary Relaxation in Iron of High PurityE. Lunarska1, Y. Jagodzinski2 and Y. Ososkov1
1 Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, ul. Kasprzaka 44/52, Poland
2 Institute of Metal Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine
Irreversible change of grain boundary structure due to the different hydrogen charging of annealed and cold worked iron of high purity was studied by internal friction measurements of grain boundary relaxation. Two relaxation modes are involved in the main process of grain boundary relaxation : high temperature mode associated with the GB sliding, and low temperature mode associated with the motion of near grain boundary dislocations.
© EDP Sciences 1996