Abstract
Friction welding of tube to tube plate using an external tool (FWTPET) is a relatively newer solid state welding process used for joining tube to tube plate of either similar or dissimilar materials with enhanced mechanical and metallurgical properties. In the present study, FWTPET has been used to weld SA 213 (Grade T12) tube with SA 387 (Grade 22) tube plate. The welded samples are found to have satisfactory joint strength and the Energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD) study showed that inter metallic compound is absent in the weld zone. The different weld joints have been identified and the phase composition is found using EDX and XRD. Microstructures have been analyzed using optical and Scanning electron microscopy (SEM). The mechanical properties such as hardness, compressive shear strength and peel test for different weld conditions are studied and the hardness survey revealed that there is increase in hardness at the weld interface due to grain refinement. The corrosion behavior for different weld conditions have been analyzed and the weld zone is found to have better corrosion resistance due to the influence of the grain refinement after FWTPET welding process. Hence, the present investigation is carried out to study the behavior of friction welded dissimilar joints of SA 213 tube and SA 387 tube plate joints and the results are presented. The present study confirms that a high quality tube to tube plate joint can be achieved using FWTPET process at 1120 rpm.
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S. Senthil Kumaran received Ph.D. (FWTPET-Friction Welding) in 2012 at National Institute of Technology, Tiruchirappalli, India. Currently he is working in RVS School of Engineering and Technology, Dindigul, India, as Professor and Head of the Mechanical Engineering Department. His research interests focus on Advanced welding Process, Optimization, Physical metallurgy and Composite materials.
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Rajan, S.P., Senthil Kumaran, S., Kumaraswamidhas, L.A. et al. An investigation on SA 213-Tube to SA 387-Tube plate using friction welding process. J Mech Sci Technol 30, 337–344 (2016). https://doi.org/10.1007/s12206-015-1238-z
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DOI: https://doi.org/10.1007/s12206-015-1238-z