Abstract
In this study, a new welding technology of dissimilar materials, Cr-based P92 steels and Ni-based Alloy 617 is introduced and demonstrated to investigate its reliability. Firstly, multi-pass dissimilar metal welding between P92 steel and Alloy 617 was performed using DCEN TIG welding technology, buttering welding technique and a narrow gap groove. After welding, in order to understand characteristics of the dissimilar metal welds, metallurgical micro-structures analysis by optical observation and static tensile strength assessment of the dissimilar welded joints were conducted at 700°C.
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Ji-Won Han is a Professor at the Mechanical Engineering Department, Hoseo University in Cheonan, Korea. Prof. Han’s research interests are in the area of environmental strength of materials and life assessment, assessment of fracture mechanical characteristics of material and thermal fatigue.
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Lee, J.H., Hwang, J.H., Park, Y.S. et al. Assessing mechanical properties of the dissimilar metal welding between P92 steels and alloy 617 at high temperature. J Mech Sci Technol 30, 4453–4457 (2016). https://doi.org/10.1007/s12206-016-0911-1
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DOI: https://doi.org/10.1007/s12206-016-0911-1