The effect of heat input on microstructure and HAZ expansion in dissimilar joints between API5L X80 / DSS 2205 steels using thermal cycles
نویسندگان
چکیده
In this research, the effect of shielded metal arc welding (SMAW) process heat input upon microstructure and development heat-affected zone in dissimilar joint API 5L X80/DS5 2205 steels was investigated by recording thermal cycles with thermocouple implantation perpendicular direction weld line. The filler used (electrode) is DSS 2209. base metals their interfaces at different inputs were using scanning electron microscopy/energy-dispersive spectroscopy analysis technique (SEM/EDS) optical microscopy (OM). results indicated that interface between has excellent consistency there no evidence cracks inputs. By increasing input, it determined amount secondary austenite steel had been increased. There occurred an epitaxial growth 2209/2205, a fine transition Type II boundaries 2209/ X80. areas containing coarse, fine, partially grains detected X80 steel. cycle temperature peak away from fusion line increased two metals, particularly steel, extended further.
منابع مشابه
Effect of Weld Heat Input on Microstructure and Mechanical Properties of Dissimilar Joints of API-B and API-X42 Pipeline Steels
In this study, the effect of welding heat input on microstructure and mechanical properties of dissimilar joints of API-X42 and API-B pipeline steels was investigated. Evaluation of the microstructures showed that increasing the welding heat input decreased acicular ferrite in weld metal microstructure, while amount of Widmanstatten ferrite, polygonal ferrite and grain boundary ferrite increase...
متن کاملThe evaluation of microstructure and mechanical properties of API 5L X80/DSS 2205 weld metals produced by PCGTAW
متن کامل
Investigation on Effect of Heat Input on the Microstructure and Mechanical Properties of Hadfield Steel Weld Joints in SMAW Process
In this investigation, the effect of heat input of SMAW process on the microstructure and mechanical properties of Hadfield steel weld joints was investigated. For this purpose, 4 annealed sheets with thickness 2 mm prepared from Hadfield steel and then welding applied by SMAW process with 6.75 and 11.25 kJ/mm heat input values. The evaluation of the microstructures of welding joints was condu...
متن کاملInvestigation on Effect of Heat Input on the Microstructure and Mechanical Properties of Hadfield Steel Weld Joints in SMAW Process
In this investigation, the effect of heat input of SMAW process on the microstructure and mechanical properties of Hadfield steel weld joints was investigated. For this purpose, 4 annealed sheets with thickness 2 mm prepared from Hadfield steel and then welding applied by SMAW process with 6.75 and 11.25 kJ/mm heat input values. The evaluation of the microstructures of welding joints was condu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Revista De Metalurgia
سال: 2022
ISSN: ['0034-8570', '1988-4222']
DOI: https://doi.org/10.3989/revmetalm.222