FAILURE ANALYSIS OF TURBINE AXES OFA CIRCULATORY HYDROGEN COMPRESSOR
循环氢压缩机组主汽轮机轴失效分析

The failure of a turbine axes was investigated by sclerometer,optical microscopy,SEM,and mechanics analyses.It has been found that the surface-machining nick,which resulted in stress concentration,which induced initiation and grow of fatigue cracks,and finally rupture of the axes.According to the experiment results,measures to prevent the fatigue failure have been suggested.