11:20 AM - 11:35 AM
[2I06] Fundamental technology development for evaluation of thermally ageing embrittlement of stainless steel welds used as pressure boundaries in nuclear power plants
(3)Development of prediction model for G phase precipitation
Keywords:G phase, thermodynamic calculation, phase stability, precipitation behavior
Thermodynamic equilibrium calculations were carried out for two types of dual-phase stainless steel to evaluate the influence of the temperature and constituent elements on the stability of the G phase. It was found that the stability of the G phase is dependent on the Ni, Mn, Cr, Si and Mo content.