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DOI
Warianty tytułu
Języki publikacji
Abstrakty
The study presents the results of the application of a statistical analysis for the evaluation of the effect of high-melting additions introduced into a pressure cast Al-Si alloy on the obtained level of its proof stress Rp0.2. The base Al-Si alloy used for the tests was a typical alloy used for pressure casting grade EN AC-46000. The base alloy was enriched with high-melting additions, such as: Cr, Mo, V and W. The additions were introduced into the base Al-Si alloy in all the possible combinations. The content of the particular high-melting addition in the Al-Si alloy was within the scope of 0.05 to 0.50%. The investigations were performed on both the base alloy and alloy with the high-melting element additions. Within the implementation of the studies, the values of Rp0.2 were determined for all the considered chemical compositions of the Al-Si alloy. A database was created for the statistical analysis, containing the independent variables (chemical composition data) and dependent variables (examined Rp0.2 values). The performed statistical analysis aimed at determining whether the examined high-melting additions had a significant effect on the level of Rp0.2 of the Al-Si alloy as well as optimizing their contents in order to obtain the highest values of the Al-Si alloy's proof stress Rp0.2. The analyses showed that each considered high-melting addition introduced into the Al-Si alloy in a proper amount can cause an increase of the proof stress Rp0.2 of the alloy, and the optimal content of each examined high-melting addition in respect of the highest obtained value of Rp0.2 equals 0.05%.
Czasopismo
Rocznik
Tom
Strony
105--111
Opis fizyczny
Bibliogr. 24 poz., rys., tab., wykr.
Twórcy
autor
- Department of Materials Engineering and Production Systems, Lodz University of Technology, Stefanowskiego 1/15 Street, 90-924 Łódź, Poland
autor
- Production Engineering Department, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland
autor
- Department of Materials Engineering and Production Systems, Lodz University of Technology, Stefanowskiego 1/15 Street, 90-924 Łódź, Poland
Bibliografia
- [1] 48th Census of World Casting Production. Modern Castasting, December 2014, 17-21.
- [2] 49th Census of World Casting Production. Modern Castasting, December 2015, 26-31.
- [3] 50th Census of World Casting Production. Modern Castasting, December 2016, 25-29.
- [4] Pezda, J. (2015). Effect of the T6 heat treatment on change of mechanical properties of the AlSi12CuNiMg alloy modified with strontium. Archives of Metallurgy and Materials. 60(2), 627-632.
- [5] Pezda, J. (2014). Modification of the EN AC-42000 aluminium alloy with use of multicomponent electrolysis of sodium salt. Metalurgija. 53(1), 55-58.
- [6] Wróbel, T. & Szajnar, J. (2013). Modification of pure Al and AlSi2 alloy primary structure with use of electromagnetic stirring method. Archives of Metallurgy and Materials. 58(3), 941-944.
- [7] Piątkowski, J., Gajdzik, B. & Matuła, T. ( 2012). Crystallization and structure of cast A390.0 alloy with melt overheating temperature. Metalurgija. 51(3), 321-324.
- [8] Pietrowski, S. (2001). Silumins. Łódź. Publishing house of Lodz University of Technology.
- [9] Jiang, W., Fan, Z., Dai, Y. & Li, C. (2014). Effects of rare earth elements addition on microstructures, tensile properties and fractography of A357 alloy. Materials Science and Engineering A. 597(3), 237-244.
- [10] Smith, J.F., Bailey, D.M. & Carlson, O.N. (1982). The Cr-V (Chromium-Vanadium) System. Bulletin of Alloy Phase Diagrams. 2(4), 469-473.
- [11] Venkataraman, M. & Neumann, J.P. (1987). The Cr-Mo (Chromium-Molybdenum) System. Bulletin of Alloy Phase Diagrams. 8(3), 216-220.
- [12] Zheng, F., Argent, B.B. & Smith, J.F. (1999). Thermodynamic Computation of the Mo-V Binary Phase Diagram. Journal of Phase Equilibria. 20(4), 370-372.
- [13] Okamoto, H. (2008). Al-Cr (Aluminum-Chromium). Journal of Phase Equilibria and Diffusion. 29(1), 111-112. DOI: 10.1007/s11669-007-9225-4.
- [14] Alloy Phase Diagrams. ASM Handbook Vol. 3. 1992.
- [15] Okamoto, H. (2010). Al-Mo (Aluminum-Molybdenum). Journal of Phase Equilibria and Diffusion. 31(5), 492–493.
- [16] Szymczak, T., Gumienny, G., Stasiak, I. & Pacyniak, T. (2017). Hypoeutectic Al-Si Alloy with Cr, V and Mo to Pressure Die Casting. Archives of Foundry Engineering. 17(1), 153-156.
- [17] Szymczak, T., Gumienny, G. & Pacyniak, T. (2015). Effect of tungsten on the solidification process, microstructure and properties of silumin 226. Transactions of the Foundry Research Institute. 55(3), 3-14.
- [18] Szymczak, T., Gumienny, G. & Pacyniak, T. (2016). Effect of molybdenum on the crystallization, microstructure and properties of silumin 226. Transactions of the Foundry Research Institute. 56(3), 193-204.
- [19] Szymczak, T., Gumienny, G. & Pacyniak, T. (2016). Hypoeutectic silumin to pressure die casting with vanadium and tungsten. Archives of Metallurgy and Materials. 61(4), 2103-2110.
- [20] PN-EN 1706:2011. Aluminum and aluminum alloys. Castings. The chemical composition and mechanical properties. (in Polish).
- [21] Kleinbaum, D.G., Kupper, L.L., Nizan, A. (1998). Applied Regression Analysys and Other Multivariable Methods. (3rd. ed.). Duxbury Press, Pacific Grove.
- [22] Altman, D.G. (1991). Practical statistics for medical research. London: Chapman and Hall.
- [23] Armitage, P., Berry, G., Matthews, J.N.S. (2002). Statistical methods in medical research. (4th ed.). Blackwell Science.
- [24] Dobosz, M. (2004). Computer-aided statistical analysis of research results. Warsaw: Academic Publishing House EXIT.
Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-3a29fd76-da0e-4bef-a151-4e15cb9c16d5