Directional Solidification of AlSi Alloys with Fe Intermetallic Phases

• Autorzy: Mikołajczak P. , Ratke L.

Identyfikatory

DOI

10.2478/afe-2014-0018

• Języki publikacji: EN

Abstrakty

EN

Directional solidification technique is an important research instrument to study solidification of metals and alloys. In the paper the model [6,7,8] of directional solidification in special Artemis-3 facility was presented. The current work aimed to propose the ease and efficient way in calibrating the facility. The introduced M coefficient allowed effective calibration and implementation of defined thermal conditions. The specimens of AlSi alloys with Fe-rich intermetallics and especially deleterious β-Al5FeSi were processed by controlled solidification velocity, temperature gradient and cooling rate.

Słowa kluczowe

EN

directional solidification; aluminum alloys; calibration; intermetallic phases

PL

krzepnięcie kierunkowe; stopy aluminium; kalibracja; fazy międzymetaliczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 1
• Strony: 75--78
• Opis fizyczny: Bibliogr. 11 poz., rys., wykr.

Twórcy

autor

Mikołajczak P.

• Institute of Materials Technology, Poznan University of Technology, Piotrowo 3, 60-965 Poznan, Poland
• Institut für Materialphysik im Weltraum, German Aerospace Center DLR, Linder Höhe, 51147 Köln, Germany

autor

Ratke L.

• Institut für Materialphysik im Weltraum, German Aerospace Center DLR, Linder Höhe, 51147 Köln, Germany

Bibliografia

• [1] Fraś, E. (2003). Solidification of metals. Warszawa: Wydawnictwo Naukowo-Techniczne.
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• [3] Ruvalcaba, D., Mathiesen, R. H., Eskin, D. G., Arnberg, L. & Katgerman, L. (2007). In situ observations of dendritic fragmentation due to local solute-enrichment during directional solidification of an aluminum alloy. Acta Materialia. 55(13), 4287-4292. DOI: dx.doi.org/10.1016/j.actamat.2007.03.030.
• [4] Tomaszewski, P. E. (2002). Jan Czochralski - Father of the Czochralski method. Journal of Crystal Growth. 236, 1-4. DOI: dx.doi.org/10.1016/S0022-0248(01)02195-9.
• [5] Duffar, T., Serrano, M. D., Moore, C. D., Camassel, J., Contreras, S. & Tanner, B. K. (1998). Bridgman solidification of GaSb in space. Journal of Crystal Growth. 192, 63-72. DOI:dx.doi.org/10.1016/S0022-0248(98)00421-7.
• [6] Alkemper, J., Sous, S., Stoker, C. & Ratke, L. (1998). Directional solidification in an aerogel furnace with high resolution optical temperature measurements. Journal of Crystal Growth. 191, 252-260. DOI: dx.doi.org/10.1016/S0022-0248(98)00114-6.
• [7] Steinbach, S. & Ratke, L. (2004). In situ optical determination of fraction solid. Scripta Materialia. 50, 1135-1138. DOI: dx.doi.org/10.1016/j.scriptamat.2004.01.023.
• [8] Steinbach, S. (2005). The influence of fluid flow on the microstructure evolution of directional solidified Al-Si and A-Si-Mg alloys. Unpublished doctoral dissertation, RWTH, Germany.
• [9] Ratke, L. (2009). Solidification in Artemis – July 2nd 1997 – Feb 2009. Unpublished. Köln, Germany.
• [10] Mikolajczak, P., Ratke, L. (2012). The role of fluid flow and intermetallic phases in the formation of the primary Al-phase in AlSi alloys. IOP Conf. Ser.: Mater. Sci. Eng. 27, 012024. DOI: doi:10.1088/1757-899X/27/1/012024.
• [11] Mikolajczak, P., Ratke, L. (2011). Intermetallic Phases and Microstructure in AlSi Alloys Influenced by Fluid Flow. The Minerals, Metals & Materials Society (TMS). DOI: 10.1002/9781118062173.ch104.