Heat Treatment of AlSi7Mg0.3 Aluminium Alloys with Increased Zirconium and Titanium Content

• Autorzy: Kantoriková E. , Kuriš M. , Pastirčák R.

Identyfikatory

DOI

10.24425/afe.2021.136103

• Języki publikacji: EN

Abstrakty

EN

The paper compares changes in the structure and mechanical properties due to the synergistic effect of alloying elements Zr and Ti. It is assumed that by increasing the content of Zr and Ti in the aluminium alloy, better mechanical properties will be achieved. Paper focuses on description of the differences between the samples casted into the shell mold and the metal mold. Main difference between mentioned molds is a different heat transfer coefficient during pouring, solidification and cooling of the metal in the mold. The main goal was to analyse the influence of Zr and Ti elements and compare the mechanical properties after the heat treatment. Curing and precipitation aging were used during the experiment. The effect of the elements on AlSi7Mg0.3 alloy created differences between the excluded Zr phases after heat treatment. Evaluation of the microstructure pointed to the decomposition of large predominantly needle Zr phases into smaller, more stable formations.

Słowa kluczowe

EN

aluminum alloys; heat treatment; zirconium; titan; mechanical properties

PL

stopy aluminium; obróbka cieplna; cyrkon; tytan; właściwości mechaniczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2021
• Tom: Vol. 21, iss. 2
• Strony: 89--93
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Kantoriková E.

• University of Žilina in Žilina, Department of Technological Engineering, Žilina, Slovakia

autor

Kuriš M.

• University of Žilina in Žilina, Department of Technological Engineering, Žilina, Slovakia

autor

Pastirčák R.

• University of Žilina in Žilina, Department of Technological Engineering, Žilina, Slovakia

Bibliografia

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• [4] Bolibruchová, D., Kuriš, M. & Matejka, M. (2019). Effect of Zr on selected properties and porosity of AlSi9Cu1Mg alloy for the purpose of production of high-precision castings. Manufacturing Technology. 19(4), 1213-2489.
• [5] Bolibruchova, D., Macko, J. & Bruna, M. (2014). Elimination of negative effect of Fe in secondary alloys AlSi6Cu4 (EN AC 45 000, A 319) by nickel. Archives of Metallurgy and Materials, 59, 717-721
• [6] Mahmudi, R., Sepehrband, P. & Ghasemi, H.M. (2006). Improved properties of A319 aluminum casting alloy modified with Zr. Materials Letters. 2606-2610. DOI 10.1016/j.matlet. 2006.01.046
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• [9] Lü, X., Guo, E., Rometsch, P. & Wang, L. (2012). Effect of one-step and two-step homogenization treatments on distribution of Al3Zr dispersoids in commercial AA7150 aluminium alloy. Transactions of Nonferrous Metals Society of China. 22, 2645-2651. Science Direct.
• [10] STN EN 1706. AC–42100. Aluminium alloy for general purpose castings.
• [11] Liu, S., Zhang, X.M. & Chen, M.A. & You, J. H. (2008). Influence of aging on quench sensitivity effect of 7055 aluminium alloy. Materials Characterization, 59(1), 53-60.
• [12] Pourkia, N., Emamy, M., Farhangi, H. & Seyed, E. (2010). The effect of Ti and Zr elements and cooling rate on the microstructure and tensile properties of a new developed super high-strength aluminium alloy. Materials Science and Engineering A. 527, 5318-5325.
• [13] Tillova, E., Chalupova, M. (2009). Structural analysis of Al-Si alloys. Žilina: EDIS ŽU UNIZA.

Uwagi

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