journal article·2012-07

Effect of Scandium on Microstructure and Mechanical Properties of Cast Al-Si-Mg Alloy

M. S. Kaiser, M. R. Basher, A. S. W. Kurny

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Abstract

Microstructural modification and grain refinement due to addition of scandium in Al-6Si-0.3Mg alloy has been studied in this article. It is seen from the microstructure that the dendrites of the cast Al-6Si-0.3Mg alloy have been refined significantly because of addition of scandium. Increasing amount of scandium leads to a greater dendrite refinement. The age hardening effect has been studied by subjecting the alloys containing varying amounts of scandium ranging from 0.2 to 0.6 wt.% to isochronal and isothermal aging at various temperatures for different times. It is observed that addition of scandium is the most effective in suppressing the softening effect during prolonged aging treatment.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties · Microstructure and mechanical properties

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References (12)

Show source-provided references
1. M.S. Kaiser, S. Datta, A. Roychowdhury, and M.K. Banerjee, Effect of Scandium on the Microstructure and Ageing Behaviour of Cast Al-6Mg Alloy, Mater. Charact., 2008, 59, p 1661–166610.1016/j.matchar.2008.03.006 ↗
2. S. Lathabai and P.G. Lloyd, The Effect of Scandium on the Microstructure, Mechanical Properties and Weldability of a Cast Al-Mg Alloy, Acta Mater., 2002, 50, p 4275–429210.1016/S1359-6454(02)00259-8 ↗
3. L.S. Toropova, D.G. Eskin, M.L. Kharakterova, and T.V. Dobatkina, Advanced Aluminum Alloys Containing Scandium, Structure and Properties, Baikov Institute of Metallurgy, Moscow, 1998
4. R.R. Sawtell and C.L. Jensen, Mechanical Properties and Microstructures of Al-Mg-Sc Alloys, Metall. Trans. A, 1990, 21A, p 421–43010.1007/BF02782422 ↗
5. M.S. Kaiser and M.K. Banerjee, Effect of Scandium on Cast Al-6Mg Alloys, Indian Foundry J., 2006, 52(8), p 29–43
6. J. Royset and N. Ryum, Scandium in Aluminium Alloys, Int. Mater. Rev., 2005, 50(1), p 19–4410.1179/174328005X14311 ↗
7. M.E. Drits, S.G. Pavlenko, and L.S. Toropova, Mechanism of the Influence of Scandium in Increasing the Strength and Thermal Stability of Alloys in the Al-Mg System, Sov. Phys. Dokl., 1981, 26(3), p 344–346
8. S. Nagasaki and A. Maesono, High Temp. High Press, Met. Phys., 1965, 11, p 182
9. R.R. Sawtell and C.L. Jensen, Mechanical Properties and Microstructures of Al-Mg-Sc Alloys, Metall. Trans., 1990, 21A, p 421–43010.1007/BF02782422 ↗
10. I.J. Polmear, Light Alloys, Metallurgy of the Light Metals, Edward Arnold (Publishers) Ltd, London, 1981
11. Q.G. Wang and C.J. Davidson, Solidification and Precipitation Behaviour of Al-Si-Mg Casting Alloys, J. Mater. Sci., 2001, 36(1), p 739–75010.1023/A:1004801327556 ↗
12. M.S. Kaiser, P.M.G. Nambissan, M.K. Banerjee, A. Sachdeva, and P.K. Pujari, Positron Lifetime Studies and Coincidence Doppler Broadening Spectroscopy of Al94−x Mg6Sc x (x = 0 to 0.6) Alloy, J. Mater. Sci., 2007, 42(8), p 2618–262910.1007/s10853-006-1342-7 ↗