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RISSulfur Effects on High Temperature Creep and Fracture Behavior of 25Cr35Ni–Nb Alloys
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Centrifugal cast 25Cr35Ni–Nb alloy furnace tubes with different contents of S are selected to investigate effects of S addition on creep and fracture behavior. Rupture tests in air at 1100 آ°C and 17 MPa and slow ...
Carburization of Ethylene Pyrolysis Furnace Tube in a Petrochemical Plant
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Carburization phenomena of the ethylene pyrolysis furnace tube made of 25Cr35NiNb alloy were investigated after service for approximate 30,000 h in a petrochemical plant. Three different zones, namely, oxidation zone, ...
Detection of Cracks in 25Cr35NiNb Ethylene Pyrolysis Furnace Tubes by Metal Magnetic Memory Technique
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cracking in 25Cr35NiNb pyrolysis furnace tubes is difficult to detect in engineering production. This paper presents a metal magnetic memory technique for inspecting cracks. To verify the effectiveness of the proposed ...