Microstructure and Mechanical Properties of Submerged Friction Stir Processing Mg-Y-Nd Alloy


Article Preview

Mg-2.5wt%Y-4wt%Nd-0.5wt%Zr casting alloy was subjected to submerged friction stir processing (SFSP) with different rotation rates (ω) and travel speeds (υ). The influence of the ratio of ω/υ on the microstructure and mechanical properties of Mg-Y-Nd alloy was investigated in the present work by optical microscopy, scanning electron microscopy, transmission electron microscopy, tensile test and hardness measurement. The results showed that the average grain sizes of SFSP samples were significantly refined compared with as-cast sample, and the coarse net-shaped Mg12Nd phases which located at grain boundaries in as-cast sample were changed into small particles. The combined effect of grain refinement and uniform particles distribution was responsible for the enhancement of mechanical properties. The relative optimal parameter of 600 rpm/60 mm·min-1 in this research obtained the finest grain size and the best mechanical properties, which were 1.1 μm for average grain size, 305 MPa for ultimate tensile strength and 22% for elongation, respectively.



Edited by:

Yafang Han, Qiang Zhang and Bin Jiang




G. H. Cao and D. T. Zhang, "Microstructure and Mechanical Properties of Submerged Friction Stir Processing Mg-Y-Nd Alloy", Materials Science Forum, Vol. 816, pp. 404-410, 2015

Online since:

April 2015




* - Corresponding Author

[1] Askeland DR, Phule PP and Wright WJ: The science and engineering of materials. Stanford, CT: Cengage Learning; (2011).

[2] Vipin Jain, Rajiv S. Mishra and Gouthama: J Mater Sci. Vol. 48 (2013), p.2635.

[3] Q. Yang, A.H. Feng, B.L. Xiao and Z.Y. Ma: Mater. Sci. Eng. A. Vol. 556 (2012), p.671.

[4] N. Kumar, N. Dendge, R. Banerjee and R.S. Mishra: Mater. Sci. Eng. A. Vol. 590 (2014), p.116.

[5] Xibo Liu, Rongshi Chen and Enhou Han: Mater. Sci. Eng. A. Vol. 497 (2008), p.326.

[6] M.T. Pérez-Prado, J.A. del Valle and O.A. Ruano: Scripta Mater. Vol. 51 (2004), p.1093.

[7] Zhilyaev AP, Nurislamova GV, Kim BK, Baro' MD, Szpunar JA and Langdon TG: Acta Mater. Vol. 51 (2003), p.753.

[8] R.S. Mishra, M.W. Mahoney, S.X. McFadden, N.A. Mara and A.K. Mukherjee: Scripta Mater. Vol. 42 (1999), p.163.

[9] C.I. Chang, X.H. Du and J.C. Huang: Scripta Mater. Vol. 57 (2007), p.209.

[10] J.Q. Su, T.W. Nelson and C.J. Sterling: Philos. Mag. Vol. 86 (2006), p.1.

[11] Douglas C. Hofmann and Kenneth S. Vecchio: Mater. Sci. Eng. A. Vol. 402 (2005), p.234.

[12] Fang Chai, Datong Zhang, Yuanyuan Li and Weiwen Zhang: Mater. Sci. Eng. A. Vol. 568 (2013), p.40.

[13] Basil Darras and Emad Kishta: Materials and Design. Vol. 47 (2013), p.133.

[14] Zheng K Y, Dong J and Zeng X Q, et al: Mater. Sci. Eng. A. Vol. 489 (2007), p.44.

[15] Peng Q M, Wu Y M, Fang D Q, et al: J Alloys Compd. Vol. 430 (2007), p.252.

[16] Gao Y, Wang Q D, Gu J H, et al: J Alloys Compd. Vol. 477 (2009), p.374.

[17] N. Kumar, N. Dendge, R. Banerjee, R.S. Mishra: Mater. Sci. Eng. A. Vol. 590 (2014), p.116.

[18] B.L. Xiao, Q. Yang, J. Yang, W.G. Wang, G.M. Xie, Z.Y. Ma:J Alloys Compd. Vol. 509 (2011), p.2879.

[19] Gharacheh M. A., Kokabi A. H., Daneshi G. H., et al: International Journal of Machine Tool and Manufacture. Vol. 46 (2006), p. (1983).

[20] T.A. Freeney and R.S. Mishra: Metal. Mater. Trans. A. Vol. 41(2010), p.73.

[21] Q. Yang, B.L. Xiao, Q. Zhang, M.Y. Zheng and Z.Y. Ma: Scripta Mater. Vol. 69 (2013), p.801.