Fading mechanism on grain refinement and modification with Al-B-Sr master alloys in an aluminium-silicon cast alloy

• Autorzy: Muangnoy Phisith , Eidhed Krittee

Identyfikatory

DOI

10.24425/amm.2022.139713

• Języki publikacji: EN

Abstrakty

EN

A fading mechanism during casting of treated Al-B-Sr master alloys in an aluminium-silicon cast alloy was investigated. Two different master alloys, the Al-3%B-3%Sr and Al-4%B-1%Sr were demonstrated for the efficiency test both grain refinement and modification microstructure. From experimental result, the addition of Al-3%B-3%Sr master alloy led to a refined grain size and fully modified eutectic Si. However, smaller grain sizes were found with Al-4%B-1%Sr master alloy addition while eutectic Si had coarser acicular morphology. The formation of high amounts of SrB₆ compound in the Al-3%B-3%Sr master alloy resulted to increase of grain size and eutectic Si. In fading mechanism test when holding the melt for prolong time, the agglomeration of the SrB₆ and AlSiSr compounds at the bottom of the casting specimen was important factors that decreased both grain refinement and modification efficiency. The stirring of the melt before pouring was found that the grain size and Si morphology were improved.

Słowa kluczowe

EN

aluminium; grain refinement; modification; fading mechanism

• 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: 2022
• Tom: Vol. 67, iss. 3
• Strony: 1137--1144
• Opis fizyczny: Bibliogr. 27 poz., fot., rys.

Twórcy

autor

Muangnoy Phisith

• University of Technology North Bangkok, Faculty of Engineering, Department of Materials and Production Technology Engineering, King Mongkut’s Bangkok, Thailand

• https://orcid.org/0000-0002-6787-2896

autor

Eidhed Krittee

• University of Technology North Bangkok, Faculty of Engineering, Department of Materials and Production Technology Engineering, King Mongkut’s Bangkok, Thailand

• https://orcid.org/0000-0002-6099-7303

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Uwagi

1. The authors would like to express sincere gratitude to Graduate College, King Mongkut’s University of Technology North Bangkok for the financial support.

2. Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).