Influence of Si Addition on Oxide Growth of Al-6 mass%Mg Alloy Melts

• Autorzy: Yoon Young-Ok , Ha Seong-Ho , Shah Abdul Wahid , Kim Bong-Hwan , Lim Hyun-Kyu , Kim Shae K.

Identyfikatory

DOI

10.24425/amm.2021.136363

• Języki publikacji: EN

Abstrakty

EN

Influence of Si addition on oxide layer growth of Al-6 mass%Mg alloys in molten state was investigated in this study. After melt holding for 24 h, the melt surface of only Si-free alloy became significantly bumpy, while no considerably oxidized surface was observed even with 1 mass%Si addition. There was no visible change on the appearance of melt surfaces with increasing Si content. As a result of compositional analysis on the melt samples between before and after melt holding, the Si-added alloys nearly maintained their Mg contents even after the melt holding for 24 h. On the other hand, the Mg content in the Si-free alloy showed a great reduction. The bumpy surface on Si-free alloy melt showed a large amount of pores and oxide clusters in its cross-section, while the Si-added alloy had no significantly grown oxide clusters on the surfaces. As a result of compositional analysis on the surfaces, the oxide clusters in Si-free alloy contained a great amount of Mg and oxygen. The oxide layer on the Si-added alloy was divided into Mg-rich and Mg-poor areas and contained certain amounts of Si. Such a mixed oxide layer containing Si would act as a protective layer during the melt holding for a long duration.

Słowa kluczowe

EN

Al-Mg system; Si addition; oxidation; phase diagram

• 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. 3
• Strony: 695--698
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Yoon Young-Ok

• Korea Institute of Industrial Technology (KITECH), Advanced Materials and Process R&D Department, Incheon 21999, Republic of Korea

• https://orcid.org/0000-0002-2239-6064

autor

Ha Seong-Ho

• Korea Institute of Industrial Technology (KITECH), Advanced Materials and Process R&D Department, Incheon 21999, Republic of Korea

• https://orcid.org/0000-0002-4718-8421

autor

Shah Abdul Wahid

• Korea Institute of Industrial Technology (KITECH), Advanced Materials and Process R&D Department, Incheon 21999, Republic of Korea

• https://orcid.org/0000-0001-6625-2655

autor

Kim Bong-Hwan

• Korea Institute of Industrial Technology (KITECH), Advanced Materials and Process R&D Department, Incheon 21999, Republic of Korea

• https://orcid.org/0000-0002-8273-8281

autor

Lim Hyun-Kyu

• Korea Institute of Industrial Technology (KITECH), Advanced Materials and Process R&D Department, Incheon 21999, Republic of Korea

• https://orcid.org/0000-0002-3086-3515

autor

Kim Shae K.

• Korea Institute of Industrial Technology (KITECH), Advanced Materials and Process R&D Department, Incheon 21999, Republic of Korea

• https://orcid.org/0000-0001-9450-4944

Bibliografia

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Uwagi

1. This work was supported by funding (No. 20010392) from Ministry of Trade, Industry and Energy, Korea.

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