Effect of annealing on VmHn complexes in hydrogen ion irradiated Fe and Fe–0.3%Cu alloys.

The effect of annealing on V m H n complexes and Cu precipitate behaviours in hydrogen ion irradiated Fe and Fe–0.3%Cu alloys was investigated by positron annihilation spectroscopy using a slow positron beam. The results of S parameters indicated that the room temperature irradiation was benefit for the formation of the V m H n complex compared to the elevated temperature irradiation. The S – W results confirmed the formation of Cu precipitates in Fe–0.3%Cu even at the irradiation dose of 0.1 dpa. The formation of the evident S value peaks in the damage region after annealing treatment suggested that the V m H n complexes were broken and a larger of hydrogen atoms were escaping. The residual vacancy defects would migrate towards both the surface region and the opposite direction with the increasing annealing temperature. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Nuclear Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)