Determining the optimal solution treatment temperature of aluminum cast alloys by using quantitative analysis

• Autorzy: Kucharikova L. , Tillova E.
• Języki publikacji: EN

Abstrakty

EN

Heat treatment of aluminum casts is necessary for achieving the desired properties of casts. Heat treatment caused changes in microstructure and substructure of materials and therefore it is necessary to control which changes are sufficient and which are insufficient. Morphology (shape, size and distribution) of microstructural features influence the properties of cast rapidly. Contribution describes influence of the heat treatment marking T4 - solution treatment in dependence on temperature (505, 515 a 525 °C) and holding time (2, 4, 8, 16 a 32 hour) on structure (α–phase, eutectic silicon, intermetallic phases) and mechanical properties (ultimate tensile strength - UTS and Brinell hardness - HBW) of A226 cast alloy. This cast alloy is made out of secondary aluminum. Secondary aluminum alloys are made of aluminum scrap. About 70 % of such material are used in the manufacture of casts. Therefore the strictly microstructure control of experimental material before and after heat treatment is necessary for declaration of cast properties. Nowadays manufacturers use the methods of quantitative analysis for quick control of microstructural features. This work present some of them.

Słowa kluczowe

EN

aluminum cast alloys; quantitative analysis; microstructural features; eutectic Si; Fe-rich phases; Cu-rich phases

PL

stopy aluminium; odlewnicze stopy aluminium; cechy mikrostrukturalne; analiza ilościowa

• Wydawca: Oficyna Wydawnicza Stowarzyszenia Menedżerów Jakości i Produkcji
• Czasopismo: Archiwum Wiedzy Inżynierskiej
• Rocznik: 2017
• Tom: T. 2, Nr 2
• Strony: 27--30
• Opis fizyczny: Bibliogr., 13 poz., rys., tab.

Twórcy

autor

Kucharikova L.

• University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitná 8215/1, 010 26 Žilina

autor

Tillova E.

• University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitná 8215/1, 010 26 Žilina

Bibliografia

• [1] Bolibruchová D., Tillová E.: The Al-Si cast alloys, EDIS ŽU Žilina, (2005), in Slovak.
• [2] Matvija, M. and et al. The impact toughness of hypoeutectic Al-Si7Mg0.3 alloy processed by ecap. Acta Metallurgica Slovaca, 18, (2012), No 1, s. 75-81.
• [3] Pucher, P., Böttcher, H., Kaufmann, H., Antrekowitsch, H., Uggowitzer,P.J. Mechanical Properties and Casting Characteristics of the Secondary Aluminum Alloy AlSi9Cu3(Fe) (A226). The Minerals, Metals & Materials Society. 2., (2011), DOI:10.1002/9781118062142.ch30.
• [4] Sanna, F., Fabrizi, A., Ferraro, S., Timelli, G., Ferro, P., Bonollo, F. Multiscale characterisation of AlSi9Cu3(Fe) die casting alloys after Cu, Mg, Zn and Sr addition. La MetallurgiaItaliana. 4, (2013), s. 13-24.
• [5] Stadler, F., Antrekowitsch, H., Fragner, W., Kaufmann, H., Pinatel, E., Uggowityer, P.J. The effect of main alloying elements on the physical properties of Al-Si foundry alloys. Materials science and engineering A. 560, (2013), s. 481-491.
• [6] Uhríčik, M., Palček, P., Soviarová, A., Snopiński, P. Change of internal friction on aluminium alloy with 10.1 % Mg dependence on the temperature. Manufacturing technology. 14, (2012), No. 3, s. 467-470.
• [7] Zamani, M. Al-Si Cast Alloys - Microstructure and Mechanical Properties at Ambient and Elevated Temperature. Department of Materials and Manufacturing School of Engineering, Jӧnkӧping University, Jönköping, Sweden (2015).
• [8] Olofsson, J., Svensson, I.L., Lava, P., Debruyne, D. Characterisation and investigation of local variations in mechanical behaviour in cast aluminium using gradient solidification, Digital Image Correlation and finite element simulation. Materials & Design, 56, (2014), s. 755-762.
• [9] Hurtalová L., Tillová E., Chalupová, M. The structural analysis of secondary (recycled) AlSi9Cu3 cast alloy. 29th DANUBlA-ADRIA Symposium on Advances in Experimental Mechanics, DAS 2012, (2012), s. 130-131.
• [10] Vaško A., Markovičová M., Zatkalíková V., Tillová E.: Quantitative evoluation of microstructure of graphitic cast irons. Manufacturing technology, 14, No. 3, (2014), s. 478-182.
• [11] STN EN ISO 6892-1:2010 (42 0310) Metallic materials. Tensile testing. Part 1: Method of test at ambient temperature.
• [12] STN EN ISO 6506-1:2015 (42 0371) Metallic materials. Brinell hardness. Part 1: Test method.
• [13] Hurtalová L., Tillová E. Evolution of the Structure in Recycled Al-Si9Cu3 Cast Alloy During Solution Treatment. Journal of Machine Manufacturing: Design and Manufacturing. 49, (2009), No. E3-E5, s. 6-13.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).