Influence of Al, Cu and Ni Additions on Mechanical Properties of Hot-Rolled Fe-9Mn-0.2C Medium-Manganese Steels

• Autorzy: Yoon Young-Chul , Kim Sang-Gyu , Lee Sang-Hyeok , Hwang Byoungchul

Identyfikatory

DOI

10.24425/amm.2021.136415

• Języki publikacji: EN

Abstrakty

EN

The microstructure and mechanical properties of hot-rolled Fe-9Mn-0.2C medium-manganese steels with different Al, Cu, and Ni contents were investigated in this study. Based on the SEM, XRD, and EBSD analysis results, the microstructure was composed of martensite, band-type delta ferrite, and retained austenite phases depending on the Al, Cu, and Ni additions. The tensile and Charpy impact test results showed that the sole addition of Al reduced significantly impact toughness by the presence of delta-ferrite and the decrease of austenite stability although it increased yield strength. However, the combined addition of Al and Cu or Ni provided the best combination of high yield strength and good impact toughness because of solid solution strengthening and increased austenite stability.

Słowa kluczowe

EN

medium manganese steel; hot-rolled; microstructure; strength; impact toughness

• 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: 2021
• Tom: Vol. 66, iss. 4
• Strony: 1007--1011
• Opis fizyczny: Bibliogr. 19 poz., fot., rys., tab.

Twórcy

autor

Yoon Young-Chul

• Seoul National University of Science and Technology, Department of Materials Science and Engineering, 232, Gongneung-ro, Nowon-gu, Seoul 01811, Korea

• https://orcid.org/0000-0003-3487-2520

autor

Kim Sang-Gyu

• Seoul National University of Science and Technology, Department of Materials Science and Engineering, 232, Gongneung-ro, Nowon-gu, Seoul 01811, Korea

• https://orcid.org/0000-0003-2237-8517

autor

Lee Sang-Hyeok

• Seoul National University of Science and Technology, Department of Materials Science and Engineering, 232, Gongneung-ro, Nowon-gu, Seoul 01811, Korea

• https://orcid.org/0000-0003-2201-9223

autor

Hwang Byoungchul

• Seoul National University of Science and Technology, Department of Materials Science and Engineering, 232, Gongneung-ro, Nowon-gu, Seoul 01811, Korea

• https://orcid.org/0000-0001-6330-4747

Bibliografia

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Uwagi

1. The present study was supported by the Basic Science Research Program (NRF-2017R1A2B2009336) funded by the National Research Foundation of Korea.

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).