RECOVERY BEHAVIOUR OF QUENCHED-IN DEFECTS IN Fe-Cr-Ni ALLOY BY POSITRON ANNIHILATION
Fe—Cr—Ni合金淬火缺陷回复行为的正电子湮没研究

The crystal defects and the recovery behaviour in quenched and deformed Fe-Cr-Ni austenite alloys were investigated by the methods of positron lifetime and Doppler line shape measurement. The mechanism of defects recovery and their interaction were discussed. The process of dynamic interaction between vacancy-type defects and the impurity atoms was also discussed according to the changes of the positron lifetimes.