Manufacturing Technology 2018, 18(6):900-905 | DOI: 10.21062/ujep/198.2018/a/1213-2489/MT/18/6/900

Fractographic Analysis of Strontium-Modified Al-Si Alloys

Iryna Hren, Jaroslava Svobodova
Faculty of Mechanical Engineering, J. E. Purkyne University in Usti nad Labem. Pasteurova 3334/7, 400 01 Usti nad Labem. Czech Republic

The research described in this contribution is focuses on fractographic analysis of the fracture area of AlSi7Mg0.3 alloy with modified strontium. Modification is an effective tool for improving the mechanical properties of aluminum alloys and affecting the microstructure of the material. The aim of the paper is to revise the microstructure of the modified AlSi7Mg0.3 alloy and to determine its strength properties. Within the experiment, the character of the refraction was evaluated and the presence of foreign particles and elements in the material fracture was monitored. Optical microscopy identified structural parameters of the castings just below the fracture surface as well as the course of the fracture line. Using a scanning electron microscope, the fracture area of the sample was analyzed, the EDS analysis was performed and the results of these analyzes were evaluated. An increased number of O, C and F elements occurred on the surface of the samples. The occurrence of these elements most likely results in a material breakage, which also confirms the results achieved by the static tensile test. On the basis of the obtained results from the analyzes carried out, the mechanisms of the breach were determined.

Keywords: AlSi7Mg0.3, modification, strontium, beryllium, microstructure

Published: December 1, 2018  Show citation

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Hren I, Svobodova J. Fractographic Analysis of Strontium-Modified Al-Si Alloys. Manufacturing Technology. 2018;18(6):900-905. doi: 10.21062/ujep/198.2018/a/1213-2489/MT/18/6/900.
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    References

    1. MICHNA, ©. a kol. (2005). Encyklopedie hliníku, 1. Vydání, Preąov, SR: Adin s. r. o.
    2. BOLIBRUCHOVÁ, D., TILLOVÁ, E. (2005). Zlievarenské zliatiny Al-Si. ®ilina: EDIS - vydavatel'stvo ®U.
    3. MONDOLFO L. F. (1979). Aluminium Alloys, Structure and Properties. Butterworths, London.
    4. DAVIDSON, C. J., et al (2002). The Effect of solution heat Treatment Time on Fatigue Properties of an Al-Si-Mg Casting Alloy. FFEMS, Vol. 25, pp.223-230. Go to original source...
    5. TILLOVA, E., CHALUPOVA, M., HURTALOVA, L., DURINIKOVA, E. (2011). Quality Control of Microstructure in Recycled Al-Si Cast Alloys. Manufacturing Technology, Vol. 11, No. 11, pp. 70-76. Go to original source...
    6. NÁPRSTKOVÁ, N., CAIS, J., SVOBODOVÁ, J. (2013). The Effect of Modification by Strontium of the AlSi7Mg0.3 Alloy on the Surface Roughness. Manufacturing Technology, Vol. 13, No. 3, pp. 380-384. Go to original source...
    7. MICHNA, ©., NAPRSTKOVÁ, N., LUKÁČ, I. (2011). Mechanical Properties Optimization of AlSi12CuMgNi Alloy by Heat Treatment. Metallofizika i Noveishie Teknologii, Vol. 11.
    8. LIPIŃSKI, T. (2011). Microstructure and Mechanical Properties of the AlSi13Mg1CuNi Alloy with Ecological Modifier. Manufacturing Technology, Vol.11, No.11, pp.40-44. Go to original source...
    9. HONZÁTKO, R., MICHNA, ©., CAIS, J. (2013). The Influence of Porosity on Mechanical Propertis of Casts Produced from Al-Si Alloys. Manufacturing Technology, Vol.13, No 3. Go to original source...
    10. MICHNA, ©., LUKÁČ, I. (2012). Praktická fraktografie. Univerzita J. E. Purkyně v Ústí nad Labem, OPTYS, spol. s r. o., 237 p.
    11. NÁPRSTKOVÁ, N., CAIS, J., SVOBODOVÁ, J. (2013). The Effect of Modification by Strontium of the AlSi7Mg0.3 Alloy on the Surface Roughness. Manufacturing Technology. October 2013, Vol. 13, No. 3, pp. 380-384. Go to original source...
    12. CAIS, J., SVOBODOVA, J., STANCEKOVA, D. (2017). Modification of the AlSi7Mg0.3 alloy using antimony. Manufacturing Technology. Vol. 17, pp. 685-690. Go to original source...
    13. VOREL, I., JENÍČEK, ©., KÁŃA, J., IBRAHIM, K., KOTĚSOVEC, V. (2016). Use of Optical and Electron Microscopy in Evaluating Optimization by Material-Technological Modelling of Manufacturing Processes Involving Cooling of Forgings. Manufacturing Technology. Vol. 16, No.6, pp. 1383-1387. Go to original source...

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