인코넬 82/182 이종금속 용접부의 기계물성 평가Evaluation of Mechanical Properties in Inconel 82/182 Dissimilar Metal Welds

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In several locations of the pressurized water reactors, dissimilar metal welds using inconel welding wires are used to join the low alloy steel nozzles to stainless steel pipes. To evaluate the integrity and design the dissimilar welds, tensile and fracture properties variations are needed. In this study, dissimilar metal welds composed of SA508 Gr.3 LAS, inconel 82/182 weld, and TP316 stainless steel were prepared by gas tungsten arc welding and shielded metal arc welding technique. Microstructures were observed using optical and electron microscopes. Different tensile and fracture properties were observed depending on the specimen sampling position at room temperature and and that was discussed based on the microstructure characteristics. It was found that the strength at the bottom of weld was greater than at the top of the weld. Also, from the test data using small punch specimen, more detailed tensile property variations were evaluated.
Publisher
대한기계학회
Issue Date
2007-05-30
Language
KOR
Citation

대한기계학회 2007년 춘계학술대회, pp.244 - 249

URI
http://hdl.handle.net/10203/163385
Appears in Collection
NE-Conference Papers(학술회의논문)
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