Changes in the structure of the AK7 alloy in terms of modification

• Autorzy: Romankiewicz Remigiusz

Identyfikatory

DOI

10.2478/czoto-2024-0040

• Języki publikacji: EN

Abstrakty

EN

On this work there was decided to verify the possibility of influence of micro additives of strontium and boron on structure of AlSi7Mg (EN-AC-42000) alloy with chemical composition according to PN-EN 1706. As the modifier there were used AlSr10 (0.3%) and AlTi5B1 (0.3%) master alloy, which were added separately and together. Changes in the structure of individual samples of the AK7 alloy were examined using a metallographic microscope. The chemical composition of complex intermetallic phases formed in the structure of the tested alloy was also examined. The most beneficial effect turned out to be the effect of strontium in the form of 0.3% AlSr10, ensuring a favourable conversion of lamellar silicon into the form of fine fibres. The presence of complex phases was observed in all test samples. Most often, these were phases with various needle shapes and variable Fe and Mn contents.

Słowa kluczowe

EN

alloy; intermetallic phase; structure; modification

PL

stop; faza międzymetaliczna; struktura; modyfikacja

• Wydawca: De Gruyter
• Czasopismo: System Safety : Human - Technical Facility - Environment
• Rocznik: 2024
• Tom: Vol. 6, iss. 1
• Strony: 384--394
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Romankiewicz Remigiusz

• University of Zielona Góra, Licealna 9 65-417 Zielona Góra, Poland

• https://orcid.org/0000-0002-6341-7167

Bibliografia

• 1.Rams, J., Whittaker, M., 2022. Light Alloys and Composites-High Temperature Extreme Alloys and Composites. In Encyclopedia of Materials: Metals and Alloys; Elsevier: Amsterdam, The Netherlands, 1.
• 2.Hurtalova, L., Tillova, E., Chalupova, M., 2014. Effect of the different technological processes during and after casting of hypoeutectic aluminium alloys on the eutectic Si particles morphology. 32th International Colloquium on “Advanced manufacturing and repair technologies in vehicle industry”, Pardubice, Svojanov, University of Pardubice, 159-166.
• 3.Tillova, E., Chalupova, M., Kucharikova, L., 2016. Possibility of Sr-modification in Al-Si-Cu cast alloy, 33rd Iternatonal Colloquium „Advanced Manufavturing and Repair Technologies in Vehicle Industry”, Zuberec, Slovakia.
• 4.Lipiński, T., 2015. Double modification of AlSi9Mg alloy with boron, titanium and strontium. Archives of Metallurgy and Materials, 60(3B), 2415-2419.
• 5.Lipiński, T., 2017. Analysis of mechanical properties of AlSi9Mg alloy with Al., Ti and B additions. Manufacturing Technology,17(5), 761-766.
• 6.Lipiński, T., 2019. Effect of Sr, Ti and B additions as Powder and Reliminary Alloy with Al. on Microstructure and Tensile Strength AlSI9Mg Alloy. Manufacturing Technology, 19(5), 807-812.
• 7.Wiecheć, J., 2016. The influence of chemical composition and production method on the properties of conductive aluminum alloys of the silumin type. PhD thesis. Faculty of Non-Ferrous Metals AGH, Kraków-Poland.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).