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Detection of Cracks in 25Cr35NiNb Ethylene Pyrolysis Furnace Tubes by Metal Magnetic Memory Technique
- Source :
- Journal of Pressure Vessel Technology. 139
- Publication Year :
- 2017
- Publisher :
- ASME International, 2017.
-
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 technique, positions where abnormal magnetic signals existed were rechecked by penetration testing and scanning electron microscopy. Magnetic memory technique results agree well with penetration testing and scanning electron microscope results, providing an effective method to detect cracks in 25Cr35NiNb pyrolysis furnace tubes. However, further research is required for the magnetic memory technique to attain full maturity for use in engineering applications.
- Subjects :
- 010302 applied physics
Ethylene
Materials science
Mechanical Engineering
Metallurgy
01 natural sciences
Metal
chemistry.chemical_compound
chemistry
Mechanics of Materials
visual_art
0103 physical sciences
visual_art.visual_art_medium
Forensic engineering
Magnetic memory
Safety, Risk, Reliability and Quality
010301 acoustics
Pyrolysis
Subjects
Details
- ISSN :
- 15288978 and 00949930
- Volume :
- 139
- Database :
- OpenAIRE
- Journal :
- Journal of Pressure Vessel Technology
- Accession number :
- edsair.doi...........afa62c1fb2cc463184345ff4050c4ee2