Microstructure of the Bonding Zone Between AZ91 and AlSi17 Formed by Compound Casting

• Autorzy: Mola R. , Bucki T. , Dziadoń A.

Identyfikatory

DOI

10.1515/afe-2017-0036

• Języki publikacji: EN

Abstrakty

EN

This paper discusses the joining of AZ91 magnesium alloy with AlSi17 aluminium alloy by compound casting. Molten AZ91 was cast at 650^oC onto a solid AlSi17 insert placed in a steel mould under normal atmospheric conditions. Before casting, the mould with the insert inside was heated up to about 370^oC. The bonding zone forming between the two alloys as a result of diffusion had a multiphase structure and a thickness of about 200 μm. The microstructure and composition of the bonding zone were analysed using optical microscopy, scanning electron microscopy and energy dispersive X-ray spectroscopy. The results indicate that the bonding zone adjacent to the AlSi17 alloy was composed of an Al3Mg2 intermetallic phase with not fully consumed primary Si particles, surrounded by a rim of an Mg2Si intermetallic phase and fine Mg2Si particles. The bonding zone near the AZ91 alloy was composed of a eutectic (an Mg17Al12 intermetallic phase and a solid solution of Al and Si in Mg). It was also found that the compound casting process slightly affected the AZ91alloy microstructure; a thin layer adjacent to the bonding zone of the alloy was enriched with aluminium.

Słowa kluczowe

EN

casting process; joining; magnesium alloys; aluminum alloys; intermetallic phases; microstructure

PL

proces odlewania; łączenie; stop magnezu; stop aluminium; faza intermetaliczna; mikrostruktura

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2017
• Tom: Vol. 17, iss. 1
• Strony: 202--206
• Opis fizyczny: Bibliogr. 25 poz., il., rys.

Twórcy

autor

Mola R.

• Kielce University of Technology, Faculty of Mechatronics and Machanical Engineering Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland

autor

Bucki T.

• Kielce University of Technology, Faculty of Mechatronics and Machanical Engineering Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland

autor

Dziadoń A.

• Kielce University of Technology, Faculty of Mechatronics and Machanical Engineering Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)