A Review of the Stress-Relaxation Method for Following the Kinetics of Precipitation, Recovery and Recrystallization
|Periodical||Materials Science Forum (Volumes 706 - 709)|
|Main Theme||THERMEC 2011|
|Edited by||T. Chandra, M. Ionescu and D. Mantovani|
|Citation||W.J. Liu, 2012, Materials Science Forum, 706-709, 2758|
|Online since||January, 2012|
|Keywords||Kinetic, Precipitation, Recovery, Recrystallization, Stress-Relaxation|
Stress-relaxation method was first used by Liu and Jonas in 1980s for following the kinetics of strain induced precipitation of carbonitrides in austenite. Since then, the method has been widely employed for studying not only the precipitation kinetics but also the recovery and recrystallization processes in steels and other alloys. In the present paper, the principle and the worldwide usage of the method were reviewed. The dependence of stress relaxation rate on the occurrence of precipitation, recovery and recrystallization was interpreted based on a dislocation model. The capabilities and the limitations of the method were discussed and ways to overcome the existing limitations were also proposed.