동력기계공학회지 (Journal of Power System Engineering)

  • 제18권4호
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  • Pages.104-111
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  • 2014
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  • 2713-8429(pISSN)
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  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
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계장화 압입시험기를 이용한 EH36 후판 용접재의 저온특성 평가

Evaluation of Low Temperature Properties in EH36 Thick Steel Plate Welded Material by Instrumented Indentation Equipment

  • Kim, Gwi-Nam (Graduate School of Department of Energy and Mechanical Engineering, Gyeongsang National University) ;
  • Lee, Jong-Seok (Graduate School of Department of Energy and Mechanical Engineering, Gyeongsang National University) ;
  • Hyeon, Jang-Hwan (Khan Co., LTD.) ;
  • Jung, Yong-Gil (Department of Energy and Mechanical Engineering, Gyeongsang National University) ;
  • Huh, Sun-Chul (Department of Energy and Mechanical Engineering, Gyeongsang National University)
  • 투고 : 2013.09.04
  • 심사 : 2014.07.24
  • 발행 : 2014.08.31
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초록

In this study, EH36 is thick steel plate, which welded by auto $CO_2$ gas welding machine, has been applied on offshore filed. The specimen was examined by indentation tester and it was measured for fracture toughness at $18^{\circ}C$, $0^{\circ}C$, $-20^{\circ}C$ and $-45^{\circ}C$ by low temperature chamber, respectively. The absorbed energy was got on same temperature by Charpy impact tester. The weld surface was observed for watch of changed crystalline structure by optical microscope, and fracture surface of impact test specimen were observed by scanning electron microscope(SEM).

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참고문헌

  1. D. S. Ro, J. W. Hong, K. H. Kim, J. J. Lee, 2009, "High-temperature Mechanical Properties Measurement and Life Assessment of Boiler Equipment by Instrumented Indentation Technique", Journal of The Korean Society of safety, Vol. 24, No. 3, pp. 1-6.
  2. H. S. Bang, H. S. Bang, Y. K. Lee, H. S. Kim, K. J. Lee, 2010, "A Study of the Residual Stress Characteristics of FCAW Multi-Pass Butt joint for an Ultra-Thick Plate", Journal of the Korean Society of Ocean Engineers, Vol. 24, No. 2, pp. 62-66.
  3. J. H. Park, C. S. Seok, M. W. Suh, J. W. Park, 1996, "Evaluation of Welding Residual Stress of High Tension Steel by Means of Finite Element Method", pp. 73-78.
  4. H. I. Kim, C. S. Seok, J. P. Kim, 2005, "A Study on the Nondestructive Evaluation of Material Properties", Journal of the Korean Society of Precision Engineering, Vol. 22, No. 3, pp. 130-136.
  5. J. H. Lee, H. S. Sin, K. T. Park, S. H. Yang, 2011, "Evaluation of the Applicability of Structural Steels to Cold Regions by the Charpy Impact Test", Journal of Korean Society of Steel Construction, Vol. 23, No. 4, pp. 483-491.
  6. S. U. Lee, 2002, Evaluation of Low Temperature Impact energy and Fractrue Toughness for High Strength Low Alloy Steel, MS thesis, Chungnam National University, DaeJeon, Korea.

피인용 문헌

  1. Mechanical and Immersion Characteristics of Weled EH36 Steel with Different Heat Input vol.22, pp.3, 2018, https://doi.org/10.9726/kspse.2018.22.3.051