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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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.
Publisher
한국부식방식학회
Issue Date
2012-08
Language
Korean
Citation

CORROSION SCIENCE AND TECHNOLOGY, v.11, no.4, pp.120 - 128

ISSN
1598-6462
URI
http://hdl.handle.net/10203/104529
Appears in Collection
NE-Journal Papers(저널논문)
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