Microstructure and Thermal Analysis of Mg-Al-Ca-Sr Alloys

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The paper presents results of DSC and microstructural investigations of Mg-6Al-1Ca-1Sr-0.3Mn (ACJ611) and Mg-8Al-3Ca-1Sr-0.2Mn (ACJ831) magnesium alloy in as cast condition. The microstructure of this alloy consists of aluminum in magnesium solid solution and two types of eutectic: α-Mg+Al2Ca and α-Mg+Al3Mg13Sr. The liquidus temperature of ACJ611 magnesium alloy is 613°C. The eutectic reactions L α-Mg+Al2Ca and Lα-Mg+Al3Mg13Sr occurs at 510°C and 502°C temperatures, respectively. The increase of aluminum and calcium content increases the volume fraction of Al2Ca phase, decreases the liquidus temperature and slightly increases the temperature of eutectic reactions.

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Periodical:

Defect and Diffusion Forum (Volumes 326-328)

Edited by:

Prof. Andreas Öchsner, Prof. Graeme E. Murch, Ali Shokuhfar and Prof. João M.P.Q. Delgado

Pages:

477-481

Citation:

T. Rzychoń, "Microstructure and Thermal Analysis of Mg-Al-Ca-Sr Alloys", Defect and Diffusion Forum, Vols. 326-328, pp. 477-481, 2012

Online since:

April 2012

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[1] J. Bai, Y. Sun, F. Xue, S. Xue, J. Qiang, T. Zhu: J. of All. and Comp. Vol. 437 (2007), p.247.

[2] A.A. Luo: Int. Mater. Rev. Vol. 49 (2004), p.13.

[3] A. Suzuki, N.D. Saddock, J.W. Jones, T.M. Pollock: Scr. Mater. Vol. 51 (2004), p.1005.

[4] S.M. Liang, R.S. Chen, J.J. Blandin, M. Suery, E.H. Han: Mater. Sci. and Eng. A Vol. 480 (2008), p.365.

[5] R. Ninomiya, T. Ojiro, K. Kubota: Acta Metall. Mater. Vol. 43 (1995), p.669.

[6] D.W. Zhou, J.S. Liu, P. Peng, L. Chen, Y.J. Hu: Mater. Lett. Vol. 62 (2008), p.206.

[7] A.A. Luo, M.P. Balogh, B.R. Powell: Metall. Mater. Trans. A Vol. 33 (2002), p.567.

[8] A. Suzuki, N.D. Saddock, J.W. Jones, T.M. Pollock: Acta Mater. Vol. 53 (2005), p.2823.

[9] A. Suzuki, N.D. Saddock, L. Riester, E. Lara-Curzio, J.W. Jones, T.M. Pollock: Metall. Mater. Trans. A Vol. 38 (2007), p.420.

[10] E. Baril, P. Labelle, M.O. Pekguleryuz: JOM Vol. 55 (2003), p.34.

[11] T. Rzychoń, A. Kiełbus, G. Dercz: Solid State Phenom. Vol. 163 (2010), p.169.