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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.40 No.5
- 발행연도
- 2021.9
- 수록면
- 633 - 648 (16page)
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This paper investigated tensile behaviours of S30408 at the Arctic low temperatures (T) of -80~20℃. A cooling chamber equipped with liquid nitrogen gas was adopted to rebuild the Arctic low-temperature environment. Standard tension tests were performed on 48 coupons with different thickness at different T values of -80, -60, -30, and 20℃. Test results revealed the ductile failure mode of stainless steel S30408 even at -80℃. The tensile stress-strain (σ-ε) curves of S30408 at ambient temperatures exhibited a long strain hardening plateau. Meanwhile, the low-temperature tensile σ-ε curves of S30408 were different from those at ambient temperatures, which exhibited a second hardening stage with a larger slope than the first hardening. The decreasing T generally increased the elastic modulus, yield and ultimate strength, but reduced the ductility of S30408. Decreasing the T from 20 to -80℃ reduced the ductility of S30408 by about 28%, but improved the elastic modulus, yield and ultimate strength by about 20%, 22%, and 75%, respectively. This paper also adopted the best subset regression analysis method to develop empirical formulae on estimating influences of T on mechanical properties of S30408. Validations of the predictions by these empirical formulae against the test results in the literature proved their accuracies.
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참고문헌 (54)
참고문헌 신청
S. Afshan / 2013 / Experimental Study of Cold-Formed Ferritic Stainless Steel Hollow Sections / Journal of Structural Engineering 139(5):717~728
Anwar Ul-Hamid / 2005 / Failure of weld joints between carbon steel pipe and 304 stainless steel elbows / Engineering Failure Analysis 12(2):181~191
M. Ashraf / 2005 / Strength enhancement of the corner regions of stainless steel cross-sections / Journal of Constructional Steel Research 61(1):37~52
K. Barat / 2014 / Low temperature tensile deformation and acoustic emission signal characteristics of AISI 304LN stainless steel / Materials Science and Engineering: A 597(597):37~45
P Behjati / 2011 / Microstructural investigation on strengthening mechanisms of AISI 304L austenitic stainless steel during cryogenic deformation / Materials Science and Technology 27(12):1828~1832
Anwar Ul-Hamid / 2005 / Failure of weld joints between carbon steel pipe and 304 stainless steel elbows / Engineering Failure Analysis 12(2):181~191
M. Ashraf / 2005 / Strength enhancement of the corner regions of stainless steel cross-sections / Journal of Constructional Steel Research 61(1):37~52
K. Barat / 2014 / Low temperature tensile deformation and acoustic emission signal characteristics of AISI 304LN stainless steel / Materials Science and Engineering: A 597(597):37~45
P Behjati / 2011 / Microstructural investigation on strengthening mechanisms of AISI 304L austenitic stainless steel during cryogenic deformation / Materials Science and Technology 27(12):1828~1832
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