一、前言根据轻水反应堆原子能电厂的介绍,在电厂汽轮机和管道中观察到一种新型式的损蚀。这种损蚀在常规汽轮机中是不会发生的。核反应堆的饱和主蒸汽工况,决定了原子能汽轮机膨胀线的大部分位于焓熵图的饱和蒸汽范围之内。特别是,大量的水的凝结过程在原子能汽轮机高压部分中的第一级就 I. INTRODUCTION According to the introduction of the LWR nuclear power plant, a new type of erosion is observed in power plant steam turbines and pipelines. This erosion does not occur in conventional steam turbines. The saturation main steam condition of the nuclear reactor determines that most of the atomic energy turbine expansion line is located within the saturated steam range of the enthalpy diagram. In particular, a large amount of water is condensed in the first stage of the high-pressure part of the nuclear steam turbine