Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Effect of gadolinium and boron addition on the texture development and magnetic properties of 23Cr-10NiCu duplex stainless steels

  • Baik, Youl (Quantum Beam Science Division, Korea Atomic Energy Research Institute) ;
  • Kang, Bo Kyeong (Department of Materials Science and Engineering, Yonsei University) ;
  • Choi, Yong (Department of Materials Science and Engineering, Dankook University) ;
  • Woo, Wan Chuck (Quantum Beam Science Division, Korea Atomic Energy Research Institute)
  • Received : 2020.06.07
  • Accepted : 2020.11.30
  • Published : 2021.06.25
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Abstract

The effect of gadolinium and boron on the texture development and magnetic properties of the texture controlled 23Cr-10NiCu duplex stainless steels were studied to develop a high performance neutron and electromagnetic shielding material. The 23Cr-10NiCu base alloy is composed of 60% of austenite and 40% of ferrite, whereas, the 23Cr-10NiCu-0.5Gd-0.8B modified alloy is composed of 66% of austenite, 27% of ferrite and 7% of CrFeB intermetallic compounds. The gadolinium and boron addition to the 23Cr-10NiCu base alloy increased mechanical properties. Microstructure observation showed that the small addition of 0.5 wt% gadolinium and 0.8 wt% boron to the alloy retarded to form texture at the same hot rolling conditions, and improved the maximum magnetism, residual magnetism and coercive force about 3%, 122% and 120%, respectively.

Keywords

Acknowledgement

This work was supported by the National Research Foundation of Korea (NRF) granted funded by the Korean government (No. NRF-2017M2A2A6A05017653).

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