压水反应堆最严重的腐蚀问题是镍基合金的初次回路水应力腐蚀开裂水冷核反应堆的老化及对能源需求的增加很可能会提高结构材料的工作强度和这些材料在核电站的失效敏感性。图1示出了压水反应堆(PWR)示意图和压水反应堆核电站示意图。不同的结构材料应用在核电站压水反应堆组 The most serious corrosion problem for pressurized water reactors is the primary circuit water stress corrosion cracking of nickel-based alloys. The aging of water-cooled nuclear reactors and the increased demand for energy are likely to increase the operating strength of structural materials and the susceptibility of these materials to failure at nuclear power plants. Figure 1 shows a schematic diagram of PWR and PWR nuclear power plant. Different structural materials used in pressurized water reactor nuclear power plant group