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The Effect of Grain Size on the Deformation Behaviour of Selected Mg Alloys

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Abstract:

The mechanical properties and deformation behaviour of magnesium alloys are significantly influenced by the testing temperature, texture and grain size. The paper gives an overview on the influence of the grain size on the mechanical properties of Mg and Mg-2Al alloys at various temperatures. The yield stress and the fracture stress increase with decreasing grain size. It was shown that the elongation to fracture increases with inverse square root of grain size. The effect of grain size on the tensile strength and the elongation to fracture is influenced by the testing temperature. The observed grain size dependence of the elongation to fracture is explained by the activity of non-basal slip systems.

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Periodical:

Materials Science Forum (Volumes 567-568)

Pages:

85-88

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.567-568.85

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Online since:

December 2007

Authors:

Pavel Lukáč, Zuzanka Trojanová

Keywords:

Elongation To Fracture, Magnesium, Magnesium Alloy, Yield Stress

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] ASM Speciality Handbook Magnesium and Magnesium Alloys, edited by M.M. Avedesian and B. Baker, ASM International, Materials Park, OH (1999).

Google Scholar

[2] A. Jäger, P. Lukáč and V. Gärtnerová: Kovove Mater. Vol. 42 (2004), p.165.

Google Scholar

[3] K. Máthis, A. Mussi, Z. Trojanová, P. Lukáč and E. Rauch: Kovove Mater. Vol 41 (2003), p.293.

Google Scholar

[4] Y.N. Wang and J.C. Huang: Mater. Trans. Vol. 48 (2007), p.184.

Google Scholar

[5] F.E. Hauser, P.R. Landon and J.E. Dorn: Trans. AIME Vol. 206 (1956), p.589.

Google Scholar

[6] J.A. Chapman and D.V. Wilson: J. Inst. Metals Vol. 91 (1963), p.39.

Google Scholar

[7] D.V. Wilson: J. Inst. Metals Vol. 98 (1970), p.133.

Google Scholar

[8] G. Sambasiva Rao and Y.V.R.K. Prasad: Metall. Trans. A Vol. 13 (1982), p.2219.

Google Scholar

[9] G. Mann, J.R. Griffiths and C.H. Cáceres: J. Alloys Comp. Vol. 378 (2004), p.188.

Google Scholar

[10] M.R. Barnett, Z. Keshavarz, A.G. Beer and D. Atwell: Acta Mater. Vol. 52 (2004), p.5093.

Google Scholar

[11] E.O. Hall: Proc. Phys. Soc. (B) Vol. 64 (1951), p.747.

Google Scholar

[12] N.J. Petch: J. Iron Steel Inst. (London) Vol. 174 (1953), p.25.

Google Scholar

[13] R.W. Armstrong: Acta Metall. Vol. 16 (1968), p.347.

Google Scholar

[14] G. Nussbaum, P. Sainfort, G. Regazzoni and H. Gjestland: Scripta Metall. Vol. 23 (1989), p.1079.

Google Scholar

[15] H. Jones: Key Eng. Mater. Vol. 97-98 (1994), p.1.

Google Scholar

[16] T. Mukai, M. Yamanoi, H. Watanabe, K. Ishikawa and K. Higashi: Mater. Trans. Vol. 42 (2001), p.1182.

Google Scholar

[17] S.H.C. Park, Y.S. Sato and K. Kokawa: J. Mater. Sci. Vol 38 (2003), p.4379.

Google Scholar

[18] K. Máthis and Z. Trojanová: Kovove Mater. Vol. 43 (2005), p.238.

Google Scholar

[19] J.C.M. Li and Y.T. Chou: Metall. Trans. Vol. 1 (1970), p.1145.

Google Scholar

[20] T. Obara, H. Yoshinaga and S. Morozumi: Acta Metall. Vol. 21 (1973), p.845.

Google Scholar

[21] S. Ando and H. Tonda: Mater. Sci. Forum Vol. 350-351 (2000), p.43.

Google Scholar