Effect of Pressure on the Crystallisation of AlSi7Mg Alloy

• Autorzy: Pastirčák R. , Ščury J.

Identyfikatory

DOI

10.1515/amm-2017-0323

• Języki publikacji: EN

Abstrakty

EN

This paper deals with influencing the crystallisation of Al alloys by a direct squeeze casting method. The effects of changed cooling rates of the casting is evaluated using a heat transfer coefficient at different casting conditions. The experimental results obtained by temperature measurement of the casting and the mould were used to predict the casting and mould surface temperatures using regression curves. The measured temperatures in the sub-surface layers were used to determine the amount of heat transferred from the casting to the mould. The amount of transferred heat increased 20-fold due to the effect of pressure. We also evaluated the effect of the acting pressure on the mechanical properties and microstructure of the alloy used. The process parameters were varied in the experiment.

Słowa kluczowe

EN

squeeze casting; heat transfer coefficient; heat flux; Al alloys; mechanical properties

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 4
• Strony: 2193--2198
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr., wzory

Twórcy

autor

Pastirčák R.

• KTI, SjF, Żilina, Universitna 1, 010 26 Żilina

autor

Ščury J.

• KTI, SjF, Żilina, Universitna 1, 010 26 Żilina

Bibliografia

• [1] W. Krajewski, Arch. Metall. Mater. 44, 51-64 (1999).
• [2] W. K. Krajewski, J. Lelito, J. S. Suchy, P. Schumacher, Arch. Metall. Mater. 54, 335-338 (2009).
• [3] J. Lelito, P. L. Żak, A. L. Greer, J. S. Suchy, W. K. Krajewski, B. Gracz, M. Szucki, A. A. Shirzadi, Composites Part B - Engineering 43, 3306-3309 (2012).
• [4] D. Chatterjee, Mettal. Mater. Technology. 137-142 (1981)
• [5] J. O. Aweda, M.B. Adeyemi, J. Mater. Process Tech. 209 (3), 1477-1483 (2009).
• [6] J. H. Lee, H. S. Kim, C. W. Won, B. Cantor, Mater. Sci. Eng. A 338 (1-2), 182-190 (2002).
• [7] M. Brůna, L. Kucharčík, Materials and technology 48 (6), 949-953 (2014).
• [8] D. Bolibruchová, L. Richtárech, Archives of Foundry Engineering 15 (1), 9-12 (2015).
• [9] D. Bolibruchová, J. Macko, M. Brůna, Arch. Metall. Mater. 59 (2), 717-721 (2014).
• [10] M. Brůna, L. Kucharčík, Manufacturing Technology 13 (3), 296-302, (2013).

Uwagi

EN

This work was created in the framework of the grant project VEGA N° 1/0363/13. The authors acknowledge the grant agency for support.

PL

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