Abstract

The development of high-temperature steels for power plants application, i.e., steam turbine blade is being carried out intensively. In this paper, martensitic stainless steel 13Cr3Mo3Ni-castwere studied to observe the oxidegrowth rate on the steel surface. The steels were prepared by a sequencial process of induction melting, casting, austenitized and tempered. High-temperature oxidation test was conducted in a muffle furnace at 700 °C until 144 h. The results were compared with control, austenitized and tempered steels. The tempered steels have the lowest oxide growth rate on 13Cr3Mo3Ni-cast steels surface after a high-temperature exposure.

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