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Microstructures and Mechanical Properties of ODS Ferritic Stainless Steels for High Temperature Service Applications

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In this study, ODS ferritic stainless steels were fabricated using a commercial alloy powder, and their microstructures and mechanical properties were studied to develop the advanced structural materials for high temperature service applications. Mechanical alloying and uniaxial hot pressing processes were employed to produce the ODS ferritic stainless steels. It was revealed that oxide particles in the ODS stainless steels were composed of Y-Si-O, Y-Ti-Si-O, and Y-Hf-Si-O complex oxides were observed depending on minor alloying elements, Ti and Hf. The ODS ferritic stainless steel with a Hf addition presented ultra-fine grains with uniform distributions of fine complex oxide particles which located in grains and on the grain boundaries. These favorable microstructures led to superior tensile properties than commercial stainless steel and ODS ferritic steel with Ti addition at elevated temperature.
Twórcy
autor
  • Korea Atomic Energy Research Institute, Nuclear Materials Division, Yuseong-gu, Daejeon 305-353, Republic of Korea, shnoh@kaeri.re.kr
  • Korea Atomic Energy Research Institute, Nuclear Materials Division, Yuseong-gu, Daejeon 305-353, Republic of Korea
autor
  • Korea Atomic Energy Research Institute, Nuclear Materials Division, Yuseong-gu, Daejeon 305-353, Republic of Korea
Bibliografia
  • [1] T. K. Kim, S. Noh, S. H. Kang, J. J. Park, H. J. Jin, M. K. Lee, J. Jang, C. K. Rhee, Nucl. Eng. Technol. 48, 572 (2016).
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  • [8] T. K. Kim, C. S. Bae, D. H. Kim, J. Jang, S. H. Kim, C. B. Lee, D. Hahn, Nucl. Eng. Technol. 40, 305 (2008).
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Uwagi
EN
1. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF-2017M2A8A4017639).
PL
2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-1a5ebd8a-0642-402c-8e0f-7879926d0008
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