SA508 Gr.3 Cl.2 저합금강과 용접부의 290℃ 수화학 환경에서 피로균열거동 분석
Fatigue crack growth behaviors of SA508 Gr.3 Cl.2 base and weld material in 290℃ water environment
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초록
The fatigue crack growth behaviors of SA508 Gr.3 Cl.2 low alloy steel in high temperature water environment were investigated. Overall, weld metal showed similar crack growth rate as that of base metal. At 0.01 Hz, fatigue crack growth rate (FCGR) was higher than that in air while the difference was smaller at 0.1 Hz. Also, FCGR showed ΔK dependency at 0.1 Hz only, indicating that the environmental effect was much greater at slower loading frequency of 0.01 Hz. FCGR of SA508 Gr.3 Cl.2 low alloy steel was compatible to or smaller than the ASME Sec. XI fatigue reference curves in high temperature water environment.
Abstract
The fatigue crack growth behaviors of SA508 Gr.3 Cl.2 low alloy steel in high temperature water environment were investigated. Overall, weld metal showed similar crack growth rate as that of base metal. At 0.01 Hz, fatigue crack growth rate (FCGR) was higher than that in air while the difference was smaller at 0.1 Hz. Also, FCGR showed ΔK dependency at 0.1 Hz only, indicating that the environmental effect was much greater at slower loading frequency of 0.01 Hz. FCGR of SA508 Gr.3 Cl.2 low alloy steel was compatible to or smaller than the ASME Sec. XI fatigue reference curves in high temperature water environment.
참고문헌 (15)
- S. G. Lee, , J. Kor. Inst. Met. Mater, 38, pp.11~ (2000)
- S. G. Lee, , Proceedings of ICAPP 06 (2006)
- J. Y. Huang, , 13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems (2007)
- J. Y. Huang, , J. Nucl. Mater, 405, pp.17~ (2010)
- W. H. Bamford, , Journal of Pressure Vessel Technology, 102, pp.433~ (1980)
- S. W. Woo, , The Korean Society of Mechanical Engineers, 4, pp.72~ (2004)
- C. H. Yang, , Bull. Kor. Inst. Met. Mater, 10, pp.300~ (1997)
- "ASTM, E647", ~ (2008)
- B. Dogan, , Proceedings of PVP2006-ICPVT-11, ASME Pressure Vessels and Piping Division Conference (2006)
- C. Jang, , Mater. Des, 31, pp.1862~ (2009)
- J. H. Bulloch, , Int. J. Pres. Ves. Pip, 56, pp.149~ (1993)
- HUN JANG, "EFFECT OF CYCLIC STRAIN RATE AND SULFIDES ON ENVIRONMENTALLY ASSISTED CRACKING BEHAVIORS OF SA508 GR. 1A LOW ALLOY STEEL IN DEOXYGENATED WATER AT 310˚C", Nuclear Engineering and Technology, 40(3), pp.225~232 (2008), 한국원자력학회
- H. Cho, , Key Engineering Materials, 345, pp.1039~ (2007)
- J. D. Atkinson, , Nucl. Eng. Des, 184, pp.13~ (1998)
- F. P. Ford, , Corrosion, 52, pp.375~ (1996)