Nuclear Engineering and Technology

  • 제45권5호
  • /
  • Pages.689-694
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  • 2013
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  • 1738-5733(pISSN)
  • /
  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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FABRICATION OF GD CONTAINING DUPLEX STAINLESS STEEL SHEET FOR NEUTRON ABSORBING STRUCTURAL MATERIALS

  • Choi, Yong (Department of Materials Science and Engineering, Dankook University) ;
  • Moon, Byung M. (Liquid Processing & Casting Technology R&D Group, KITECH) ;
  • Sohn, Dong-Seong (Nuclear Science and Engineering Track, UNIST)
  • 투고 : 2013.02.19
  • 심사 : 2013.05.08
  • 발행 : 2013.10.25
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초록

A duplex stainless steel sheet with 1 wt.% gadolinium was fabricated for a neutron absorbing material with high strength, excellent corrosion resistance, and low cost as well as high neutron absorption capability. The microstructure of the as-cast specimen has typical duplex phases including 31% ferrite and 69% austenite. Main alloy elements like chromium (Cr), nickel (Ni), and gadolinium (Gd) are relatively uniformly distributed in the matrix. Gadolinium rich precipitates were present in the grains and at the grain boundaries. The solution treatment at $1070^{\circ}$ for 50 minutes followed by the hot-rolling above $950^{\circ}$ after keeping the sheet at $1200^{\circ}$ for 1.5 hours are important points of the optimum condition to produce a 6 mm-thick plate without cracking.

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참고문헌

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피인용 문헌

  1. Effect of gadolinium addition on the corrosion, wear, and neutron absorbing behaviors of duplex stainless steel sheet vol.116, pp.11, 2015, https://doi.org/10.1134/S0031918X15110137
  2. Influence of Gadolinium Addition on Mechanical and Corrosion Properties of 2205 Duplex Stainless Steel vol.35, pp.6, 2015, https://doi.org/10.7777/jkfs.2015.35.6.163
  3. Microstructure and Fracture Property of 1A Grade Duplex Stainless Steel with the Addition of Gadolinium vol.36, pp.1, 2016, https://doi.org/10.7777/jkfs.2016.36.1.24
  4. Neutron-absorbing amorphous alloys for cladding coatings vol.130, pp.1757-899X, 2016, https://doi.org/10.1088/1757-899X/130/1/012028