Appendix 1: Material ageing mechanisms

Long Term Operation of Nuclear Power Plants

Figure 1 - Age chart of French nuclear power plants

Figure 2 - For a given transient, the actual variations in hot and cold branch temperatures are less severe than the design assumptions.

Figure 3 - Tank inspection machine (MIS) with central mast carrying articulated arms, tools and sensors

Figure 4 - Dual Beam electron microscope at the Materials Ageing Institute

Figure 5 - Numerical simulation of flow in the primary circuit during safety injection

Figure 6 - Results of the irradiation monitoring program (PSI) for EDF tanks

Figure 8 - Removal of a composite skin from the wall of a reactor building

Figure 9 - Numerical simulation of thermal-hydraulic phenomena in an RRA circuit tee

Figure 10 - Steam generator replacement

Figure 11 - Exceptional convoying for a low-pressure turbine casing

Figure 12 - Handling an alternator stator

Figure 13 - 900-unit RPN system cabinet

Figure 14 - Technical and economic modeling of a unit

Figure 15 - Intergenerational transmission of knowledge