|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Materials and Fuels for the Current and Advanced Nuclear Reactors VII
||Ar Bubble Effects on Precipitation Reactions in Solubilized AISI 316L Steel Irradiated with Heavy Ions
||Ítalo Martins Oyarzabal, Mariana de Mello Timm, William M. Pasini, Franciele S. M. Oliveira, Francine Tatsh, Livio Amaral, Clarice Terui Kunioshi, Paulo F. P. Fichtner
|On-Site Speaker (Planned)
||Paulo F. P. Fichtner
We report on heavy ion irradiation effects in a solubilized AISI 316L alloy to investigate the growth of argon bubbles and their influence on the development of irradiation induced precipitate reactions.
The results obtained demonstrate the formation of M23C6 and MC precipitates occurs only in the samples containing Ar bubbles, whereas concomitant irradiation on samples without Ar result on the formation of large cavities and extended defects. The evolution of the precipitate system is discussed considering the diffusion controlled supply of C atoms from the matrix and the irradiation induced vacancy supply. The total volume of the cavity system from the control samples and the total volume of the bubble system from the samples implanted with Ar are evaluated. The volume comparison suggests that the Ar bubbles prevents a fast agglomeration and annihilation of the irradiation induced vacancies, thus favoring the nucleation of precipitate phases presenting a positive volume misfit.
||Planned: Supplemental Proceedings volume