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本文对某厂服役约16万小时1350kW汽轮机转子轮盘断口取样,用扫描电镜进行了断口样品微观分析,并分别对断口表面及转子母材做了能谱分析,发现断口具有腐蚀疲劳特征。
In this paper, a sample of 1350kW steam turbine rotor disc taken from a factory was sampled. The microstructure of the rotor was analyzed by scanning electron microscope. The energy spectrum of the fracture surface and the base metal of the rotor were analyzed respectively. The fracture fatigue characteristics were found.