Grain Refinement of AlSi7Mg0,3 Alloy Cast by Rheocasting SEED

• Autorzy: Bryksí Stunová B. , Bryksí V. , Vitkova J.
• Języki publikacji: EN

Abstrakty

EN

The paper concerns experimental work studying chemical composition, structures and selected mechanical properties of castings produced by rheocasting method SEED. After previous experiments, which showed inclusions in the primary phase α(Al) when observing structures, hypothesis of external nuclei was taken. The main goal of the work was to determine the influence of inoculation by various additions of titanium/boron based inoculant on the structure and properties of AlSi7Mg0,3 alloy. The master alloy AlTi5B1 was added in amounts of 0,05, 0,1, 0,15, 0,2 wt %. Metallographic observation by light and SEM microscopy was used for analysing the structures. Measurements of grain size were realised and evaluated. Brinell hardness measurements were performed. Chemical composition was measured by GDS analysis. Undertaken experiments did not prove the effect of inoculation of combined AlTi5B1 master alloy on castings made of AlSi7Mg0,3 alloy made by rheocasting SEED at given amounts and conditions.

Słowa kluczowe

EN

theory of crystallization; innovative foundry technologies; innovative foundry materials; solidification process; metallography; rheocasting

PL

teoria krystalizacji; innowacyjne technologie odlewnicze; innowacyjne materiały odlewnicze; proces krzepnięcia; metalografia

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 3
• Strony: 161--166
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Bryksí Stunová B.

• CTU in Prague, Faculty of Mechanical Engineering, Czech Republic

autor

Bryksí V.

• Hedvikov, P.O., Třemošnice, Czech Republic

autor

Vitkova J.

• UCT Prague, Faculty of Chemical Technology, Department of Metals and Corrosion Engineering, Czech Republic

Bibliografia

• [1] Da Silva, M., Lemieux, A. & Chen, X.G. (2009). Characterization of semi-solid slurry using a novel “Rheo-Characterizer” apparatus. Journal of Materials Processing Technology. 209, 5892-5901.
• [2] Foundry Product SEED. (2015). Retrieved April 10. 2015 from http://www.stas.com/images/stories/Document/SEED/ seed_brochure.pdf
• [3] Lashkari, O., Ajersch, F., Charette, A. & Chen, X.G. (2008). Microstructure and rheological behavior of hypereutectic semi-solid Al-Si alloy under low shear rates compression test. Materials Science and Engineering A. 492, 377-382.
• [4] Falak, P. & Niroumand, B. (2005) Rheocasting of an Al-Si alloy. Scripta Materialia. 53(1), 53-57.
• [5] Fan, Z., Fang, X., & Ji, S. (2005). Microstructure and mechanical properties of rheo-diecast (RDC) aluminium alloys. Materials Science and Engineering A - Structural Materials Properties Microstructure and Processing. 412(1-2), 298-306.
• [6] Flemings, M.C., Riek, R.G. & Young, K.P. (1976). Rheocasting. Materials Science and Engineering. 25 (SEP-O), 103-117.
• [7] Bryksí Stunová, B. & Bryksí, V. (2015). Phase segregation during processing of semi-solid slurry by rheocasting method SEED. Manufacturing Technology. 15(4), 515-520.
• [8] Bryksí Stunová, B. & Bryksí, V. (2016). Analysis of Defects in Castings Cast by Rheocasting Method SEED. Archives of Foundry Engineering. 16(3), 15-18.
• [9] Bryksí Stunová, B., Bryksí, V. & Puchnin, M. (2017). Metallographic Analysis of Parts Produced by Rheocasting Method SEED. Materials science forum. 891, 360-365.
• [10] Wang, Y., Li, H.T. & Fan, Z. (2012). Oxidation of Aluminium Alloy Melts and Inoculation by Oxide Particles. Metallurgy Materials Engineering. Trans Indian Inst Met, TP 2606, 1-9.
• [11] Bolzoni, L., Nowak, M. & Hari Babu, N. (2015). Grain refinement of Al–Si alloys by Nb–B inoculation. Part II: Application to commercial alloys. Materials and Design. 66(2015), 376-383.
• [12] Lemieux, A., Langlais, D., Bouchard, X. & Chen, X.G. (2010). Effect of Si, Cu and Fe on mechanical properties of cast semi-solid 206 alloys. Transactions of Nonferrous Metals Society of China. 20, 1555-1560.
• [13] Orlowicz, A.W., Tupaj, M., Mroz, M. & Trytek, A. (2015). Cumbustion Engine Cylinder Liners Made of AlSi Alloys. Archives of Foundry Engineering. 15(2), 71-74.
• [14] Vítková, J. (2016). Structure and properties of aluminum alloy castings produced by the rheocasting technology. Diploma thesis. UCT Prague. ID 25473. 60 p.
• [15] Brown, J.R. (1999). Foseco Non-Ferrous Foundryman’s Handbook.

Uwagi

PL

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