Evaluation of mechanical properties on inconel 82/182 dissimilar metal welds and FEA = 인코넬 82/182 이종금속 용접부의 기계물성 평가 및 유한요소 해석

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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 components to stainless steel pipes. To evaluate the integrity and design the dissimilar welds, tensile and fracture property variations are needed. In this study, dissimilar metal welds composed of SA508 Gr.3, inconel 82/182 weld, and TP316 stainless steel were prepared by gas tungsten are welding and shield metal arc welding technique. Different tensile properties were observed depending on the specimen sampling position at room temperature and 320 °C using round bar and mini-sized tensile specimen. In addition, fracture toughness were also observed at the bottom, middle, and top of the welds at the same temperature condition. Using small punch (SP) test method, correlations between mechanical property and SP data for estimating tensile and fracture toughness were carried out. Also, SP test was simulated by Abaqus program, finally from the FEM model of small punch test, detailed fracture toughness could be calculated and compared with CT specimen test results.
Advisors
Jang, Chang-Heuiresearcher장창희researcher
Description
한국과학기술원 : 원자력및양자공학과,
Publisher
한국과학기술원
Issue Date
2007
Identifier
268849/325007  / 020053470
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 원자력및양자공학과, 2007. 8, [ viii, 73 p. ]

Keywords

Dissimilar metal welds; Tensile property; Fracture toughness; FEA; 이종금속 용접부; 인장물성; 파괴인성; 유한요소 해석

URI
http://hdl.handle.net/10203/49533
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=268849&flag=dissertation
Appears in Collection
NE-Theses_Master(석사논문)
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