2016 Annual Meeting

Presentation information

Oral Presentation

IV. Nuclear Fuel Cycle and Nuclear Materials » 402-1. Nuclear Materials and the Irradiation Behavior

[2H17-22] RPV Cladding Tubes

Sun. Mar 27, 2016 4:25 PM - 6:05 PM Room H (Lecture Rooms B B204)

Chair: Taira Okita (Univ. of Tokyo)

4:40 PM - 4:55 PM

[2H18] Evaluation of the relationship between microstructure and hardness in neutron irradiated reactor pressure vessel model alloys following thermal ageing

*Liang Chen1,2, Kenji Nishida2, Kenta Murakami1, Kenji Dohi2, Li Liu1, Naoto Sekimura1 (1.Univ. Tokyo, 2.CRIEPI)

Keywords:Reactor pressure vessel, Embrittlement, Solute clusters, Atom probe tomography

The relationship between microstructures and mechanical properties is important issue for the embrittlement correlation method for Japanese reactor pressure vessel steels. In this work,the characteristics of solute clusters are studied by atom probe tomography in neutron irradiated model alloys following thermal ageing to peak hardness. Also, the relationship between solute clusters and Vickers hardness change is investigated.