Failure Analysis on Abnormal Fracture of Support Plates of Evaporator in Waste Boiler System

In order to solve a failure incident about severe fractures on the support plates of an evaporator, researches involving matrix material, operation conditions and macro and micro morphology were carried out, and relevant countermeasures were put forward as well. The results show that the high-temperature oxidation corrosion resulted from short time excess temperature was the root cause of the plate failure.