Tensile and Compressive Creep Behavior of Coarse-Grained Mg-Al-Sr Castings

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Tensile and compressive creep properties of Mg-5wt.%Al-1wt.%Sr alloy produced by gravity casting were investigated in this paper. Creep tests were carried out in the temperature range from 125 °C to 200 °C and stress range from 35 to 85MPa. The second creep rate in tension is significant different from that in compression, indicating that coarse-grained Mg-Al-Sr alloy exhibits tension/compression asymmetric behavior. Moreover, the activation energies and stress exponent in tension and compression are not the same, which suggest that creep mechanisms in tension and compression are different.

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Periodical:

Materials Science Forum (Volumes 546-549)

Edited by:

Yafang Han et al.

Pages:

171-174

Citation:

P. Zhao et al., "Tensile and Compressive Creep Behavior of Coarse-Grained Mg-Al-Sr Castings", Materials Science Forum, Vols. 546-549, pp. 171-174, 2007

Online since:

May 2007

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$38.00

[1] Z. Zhang, A. Couture, A. Luo: Scripta Mater. Vol. 39 (1998) p.45.

[2] M.O. Pekguleryuz, E. Boaril: Mater. Trans. Vol. 42 (2001) p.1258.

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

[4] S.R. Agnew, K.C. Liu, E.A. Kenik, and S. Viswanathan, in: Howard I. Kaplan, John Hyrn, and Byron Clow (Eds. ), Magnesium Technology, TMS, Warrendale, PA, (2000) p.285.

[5] S.R. Agnew, S. Viswanathan, E.A. Payzant, in: K.U. Kainer (Ed. ), Magnesium Alloys and their Application, Wiley-VCH Verlag GmbH, Weinheim, Germany (2000) p.687.

[6] M.O. Pekguleryuz, A.A. Kaya: Adv. Eng. Mater. Vol. 5 (2003) p.866.

[7] M.S. Dargusch, G.L. Dunlop, K. Pettersen, in: B.L. Mordike, K.U. Kainer (Eds. ), Magnesium Alloys and their Applications, Werkstoff-Informationsgesellschaft, Frankfurt, 1998, pp.277-282.

[8] B. Q. Han, D. C. Dunand: Mater. Sci. Eng. A Vol. 300 (2001) p.235.

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

[10] S. Spigarelli, M Regev, E. Evangelista, A. Rosen: Mater. Sci. Technol. Vol. 17 (2001) p.627.

[11] KJ Yoon, SM Wiederhorn, WE Luecke: J. Am. Ceram. Soc. Vol. 83 (2000) p. (2017).

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