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

• Autorzy: Noh Sanghoon , Kang Suk Hoon , Kim Tae Kyu

Identyfikatory

DOI

10.24425/amm.2019.129473

• 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.

Słowa kluczowe

EN

stainless steel; oxide dispersion strengthening; oxide particles; tensile strength

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 3
• Strony: 921--924
• Opis fizyczny: Bibliogr. 9 poz., fot., rys., tab.

Twórcy

autor

Noh Sanghoon

• Korea Atomic Energy Research Institute, Nuclear Materials Division, Yuseong-gu, Daejeon 305-353, Republic of Korea

autor

Kang Suk Hoon

• Korea Atomic Energy Research Institute, Nuclear Materials Division, Yuseong-gu, Daejeon 305-353, Republic of Korea

autor

Kim Tae Kyu

• 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).
• [2] S. Ukai, T. Okuda, M. Fujiwara, T. Kobayashi, S. Mizuta, H. Nakashima, J. Nucl. Sci. Technol. 39, 872 (2002).
• [3] C. W. Park, J. M. Byun, J. K. Park, Y. D. Kim, J. Korean Powder Metall. Inst. 23, 61 (2016).
• [4] A. Kimura, H. Kayano, T. Misawa, H. Matsui, J. Nucl. Mater. 212-215, 690 (1994).
• [5] G. E. Kim, S. Noh, J. E. Choi, Y. D. Kim, T. K. Kim, J. Korean Powder Metall. Inst. 22, 46 (2015).
• [6] Y. Uchida, S. Ohnuki, N. Hashimoto, T. Suda, T. Nagai, T. Shibayama, K. Hamada, N. Akasaka, S. Yamashita, S. Ohstuka, T. Yoshitake, Mater. Res. Soc. Symp. Proc. 981, 1 (2007).
• [7] S. Ukai, T. Nishida, H. Okada, T. Okuda, M. Fujiwara, K. Asabe, J. Nucl. Sci. Technol. 34, 256 (1997).
• [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).
• [9] A. J. E. Foreman, M. J. Makin, Philosophical Magazine 911 (1966).

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).