Microstructure and Mechanical Extruded Properties of Extruded AM50+xCa Magnesium Alloys

Abstract:

As-cast AM50 magnesium alloys containing 0, 1, 2 wt. %Ca were extruded firstly at 673K with an extrusion ratio 1:9, and then at 573K with an extrusion ratio 1:16. Microstructure, tensile properties and fractographs were investigated. With Ca content increasing, the amount of Al2Ca increases and that of Mg17Al12 decreases. Ca refines the microstructure of as-cast and extruded AM50 magnesium alloys. For the extruded magnesium alloys, tensile strength improved and elongation decreased at room temperature, while tensile strength was reduced a little and elongation reduced at the temperature of 100°C, 150°C and 200°C with increasing Ca content. The tearing face increases with Ca content increasing for the tensile fractographs.

• Periodical: Materials Science Forum (Volumes 488-489)
• Pages: 119-122
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.488-489.119
• Online since: July 2005
• Authors: Qu Dong Wang, Jianguo Peng, Man Ping Liu, Yongjun Chen, Wen Jiang Ding, Michel Suéry, Jean Jacques Blandin
• Keywords: AM50 Magnesium Alloy, Calcium, Extrusion, Mechanical Property, Microstructure

References

[1] R.E. Brown: Light Metal Age, Vol. 55 (7-8) (1997), p.72.

[2] F.H. Froes, D. Eliezer and E. Aghion: JOM, Vol. 50 (1998), pp.30-34.

[3] M.P. Liu, Q.D. Wang, X.Q. Zeng, Y.H. Wei, Y.P. Zhu and C. Lu: Zeitschrift fur Metallkunde Vol. 94 (8) (2003), p.886.

[4] M.P. Liu, Q.D. Wang, X.Q. Zeng, C. Lu, Y.P. Zhu and W.J. Ding: Rare Metals, Vol. 21 (supplement) (2002), pp.54-59.

[5] Q.D. Wang, W.Z. Chen, X.Q. Zeng, Y.Z. LU, W.J. Ding, Y.P. Zhu and X.P. Xu: Journal of Materials Science, Vol. 36(12) (2001), pp.3035-3040.