Analysis on Crack Reason for Sootblowers Barrel of Power Station Boiler
The crack reason for sootblowers barrel of power station boiler was investigated by macro-observation,the testing of chemical composition,metallography structure,fracture morphology and mechanical properties.The results show that the original welding defect exists in the weld seam of sootblowers barrel root.The defects generates fatigue crack growth behavior when endure cyclic loading during shocking,which can contribute to the crack of the sootblowers barrel of power station boiler.