Modelling of the Effects of Entrainment Defects on Mechanical Properties in a Cast Al-Si-Mg Alloy


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Entrainment defects such as double oxide films and entrapped bubbles occur frequently in aluminium alloy castings during the mould-filling process, and are very detrimental to both mechanical properties, and reproducibility of casting properties. In this study a modelling algorithm was used to predict the formation and distribution of entrainment defects in Al-Si-Mg alloy castings. The tensile strength of cast test bars was compared with either the number of defects, or the defect concentration within the bars obtained from the simulation. A general relationship between the mechanical strength of the cast test bars and the quantity of estimated defects was apparent.



Edited by:

Ian Stone, Brian McKay and Zhongyun Fan






Y. Yue et al., "Modelling of the Effects of Entrainment Defects on Mechanical Properties in a Cast Al-Si-Mg Alloy", Materials Science Forum, Vol. 765, pp. 225-229, 2013

Online since:

July 2013




[1] J. Campbell, Castings, 2nd ed. Oxford: Butterworth-Heinemann, 2003, pp. viii, 355p.

[2] L. Liu, A.M. Samuel, F.H. Samuel, H.W. Doty, S. Valtierra, J. Mater. Sci. 38 (2003) 1255-1267.

[3] C. Caceres, B. Selling, Mat. Sci. Eng. A 220 (1996) 109-116.

[4] C. Nyahumwa, N.R. Green, J. Campbell, AFS Trans. 106 (1998) 215-224.

[5] Q.G. Wang, P.N. Crepeau, C.J. Davidson, J. R. Griffiths, Metall. Mater. Trans. B 37 (2006) 887-895.

[6] J.A. Francis, G.M.D. Cantin, Mat. Sci. Eng. A. 407 (2005) 322-329.

[7] N.R. Green, J. Campbell, AFS Trans. 114 (1994) 341-348.

[8] C. Reilly, N.R. Green, M.R. Jolly, Metall. Mater. Trans. B 40 (2009).

[9] N. Lai, W.D. Griffiths, J. Campbell, Modelling of the potential for oxide film entrainment in light metal alloy castings, in: Modeling of Casting, Welding and Advanced Solidification Processes- X, (2003).

[10] M. Tiryakioglu, Mat. Sci. Eng. A. 476 (2008) 174-177.

[11] C. Reilly, M.R. Jolly, N.R. Green, J.C. Gebelin, Assessment of Casting Filling by Modeling Surface Entrainment Events Using CFD, in: 2010 TMS Annual Meeting & Exhibition, (2010).

[12] C. Reilly, Development Of Quantitative Casting Quality Assessment Criteria Using Process Modelling, University of Birmingham, (2010).

[13] X. Yang, X. Huang, X. Dai, J. Campbell, R.J. Grant, Mater. Sci. Technol. 22 (2006) 561-570.

[14] N.R. Green, J. Campbell, Mat. Sci. Eng. A 173 (1993) 261-266.

[15] W.D. Griffiths, R. Raiszadeh, J. Mater. Sci. 44 (2009) 3402-3407.

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