저 합금강의 템퍼비드 용접기술에 관한 연구
Study on the welding technique of tempered bead of low alloy steel
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초록
There should be tempered bead welding technology to cope with unexpected damage during operation of a nuclear power plant. Welding work should be urgently performed considering the safety of radiation exposure to workers without stopping operation of nuclear power plant. In this study, the tempering effect was measured by measuring the residual stress of the welded part by the tempered bead welding on the low alloy steel specimen, which is the main material of the nuclear reactor, by hardness of the base, HAZ and weld metal zone, And to develop the optimal tempering bead welding technology applicable to actual field.
Abstract
There should be tempered bead welding technology to cope with unexpected damage during operation of a nuclear power plant. Welding work should be urgently performed considering the safety of radiation exposure to workers without stopping operation of nuclear power plant. In this study, the tempering effect was measured by measuring the residual stress of the welded part by the tempered bead welding on the low alloy steel specimen, which is the main material of the nuclear reactor, by hardness of the base, HAZ and weld metal zone, And to develop the optimal tempering bead welding technology applicable to actual field.
참고문헌 (12)
- "ASME Boiler & Pressure Vessel Code, Section IX, QW290", 49~ (2010)
- "ASME Section IX, QW-290 Temper bead welding", 50~ (2010)
- Walter J. Sperko, "Exploring Temper Bead Welding", Welding Journal, pp.37~40 (2005)
- "Temper Bead Welding, TGN-PE-02, Welding Technology Institute of Australia", ~ (2006)
- Walter J. Sperko, "Exploring Temper Bead Welding", Welding Journal, pp.37~40 (2005)
- Y.Y. Wang, "Residual stress effects on crack driving force in multipass welds", Proceedings of ASME PVP, 373, pp.469~482 (1998)
- Stress Intensity Factors due to Standard Residual Stress Profiles, "R.H. Leggatt", ~ (2002)
- "ASME BPVC Section IX, QW-150 Tension Test", 4~ (2010)
- "ASME BPVC Section IX, QW-160 Guided-bend test", 5~ (2010)
- "ASME BPVC Section IX, QW-170 Notch-Toughness Test", 6~ (2010)
- ASTM, "Standard Test Method for Knoop and Vickers Hardness of Materials", 20~23 (2012)
- "ASME BPVC Section IX, Weld Metal Overlay", 59~ (2010)