Effect of Solidification Grain Refinement on the Development of Wrought Mg Alloys

Mark  Easton; Chris H.J. Davies; Matthew R. Barnett; Franka Pravdic

doi:10.4028/www.scientific.net/MSF.539-543.1729

Paper Titles

Influence of Misch Metal Addition and Deformation Processes on Microstructure and Mechanical Properties in AZ61 Alloy
p.1707

Texture Evolution during Uniaxial Compression of Hot-Rolled AZ31 Mg Alloy
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Investigation and Application of Excellent Performance Mg Rare Earth Alloys as a Structural Material
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The Effect of Twinning on Strain Rate Sensitivity during the Compression of Extruded Magnesium Alloy AZ31
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Effect of Solidification Grain Refinement on the Development of Wrought Mg Alloys
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Evolution of Microstructures during Laser Surface Cladding of Magnesium Alloy Castings Using Welding Wire
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Linking Meso- and Macroscale Simulations: Crystal Plasticity of hcp Metals and Plastic Potentials
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Microstructure and Mechanical Properties of Mg Alloy Sheets Produced by Twin Roll Caster
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Press Forging of Magnesium Alloy AZ31 Sheets
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HomeMaterials Science ForumMaterials Science Forum Vols. 539-543Effect of Solidification Grain Refinement on the...

Effect of Solidification Grain Refinement on the Development of Wrought Mg Alloys

Abstract:

A recent trial investigated the effect of solidification grain refinement of billet on the grain refinement and properties of alloy ZM20. It was found that even at levels of 0.4Mn, significant grain refinement could be obtained when 0.7Zr was added. At 0.2Mn grain sizes as low as 60μm were obtained. Billets of Mg-2Zn-0.2Mn with four different grain sizes, due to different Zr and cooling rates were then cast via vertical direct chill casting and extruded conventionally. Benefits of grain refinement of the billet on extrusion were found to be a slight increase in the size of the operating window, and a reduction of the grain size in the extrudate. However, the effect of the reduction in extrudate grain size due to refinement of the billet was small compared with the amount of grain refinement obtained due to recrystallisation on extrusion.

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Periodical:

Materials Science Forum (Volumes 539-543)

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1729-1734

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https://doi.org/10.4028/www.scientific.net/MSF.539-543.1729

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Online since:

March 2007

Authors:

Mark Easton, Chris H.J. Davies, Matthew R. Barnett, Franka Pravdic

Keywords:

Direct Chill Casting, Grain Refinement, Wrought Magnesium Alloy

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References

[1] G. Mann, J.R. Griffiths, and C.H. Càceres: J. Alloy. Compd., Vol. 378, (2004), p.188.

Google Scholar

[2] J.P. Doan and G. Ansel: Trans. Amer. Inst. Min. Met. Eng., Vol. 171, (1947), p.286.

Google Scholar

[3] J.F. Grandfield, C.J. Davidson, and J.A. Taylor: Light Metals 2001. (The Metals, Minerals and Materials Society, 2001), p.911.

Google Scholar

[4] D.H. StJohn, et al.: Metall. Mater. Trans. A, Vol. 26A, (2005), p.1669.

Google Scholar

[5] Z. Hildebrand, M. Qian, D.H. StJohn, and M.T. Frost: Magnesium Technology 2004. (The Metals, Minerals and Materials Society, Warrendale, PA, 2004), p.241.

Google Scholar

[6] E.F. Emley, Principles of magnesium technology. (Pergamon Press, 1966).

Google Scholar

[7] I.J. Polmear, Light alloys: Metallurgy of the light metals. 3rd ed. (J. Wiley & Sons, 1995).

Google Scholar

[8] M.R. Barnett, D. Atwell, C. Davies, and R. Schmidt: 2nd international light metals technology conference 2005. (Leichtmetallkompetenzzentrum Ranshofen GmbH, 2005), p.161.

Google Scholar

[9] N. Saunders, X. Li, A.P. Miodownik, and J. -P. Schille: Magnesium Technology 2003. (The Minerals, Metals and Materials Society, 2003), p.135.

Google Scholar

[10] M. Qian, D.H. StJohn, and M.T. Frost: Proceedings of the 6th international conference magnesium alloys and their applications. (Wiley-VCH Verlag Gmbh & Co, 2003), p.706.

Google Scholar

[11] M.A. Easton, F. Pravdic, and R. Schmidt: 2nd international light metals technology conference. (Leichtmetallkompetenzzentrum Ranshofen, 2005), p.69.

Google Scholar