Abstract
The microstructure and mechanical properties of Mg-6Al-1.2Y-0.9Nd magnesium alloy with Sb, Sm, or Sn addition were investigated through X-ray diffraction (XRD), optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The results show that small amounts of Sb, Sm, and especially Sn can refine the grains of the alloy. High melting point Sb3Y5, Al2Sm, and Nd5Sn3 intermetallic compounds can be formed respectively when Sb, Sm, and Sn are added to the alloy. Sb and Sm can improve the tensile strength of the alloy at ambient and elevated temperatures. The tensile strength of the alloy with Sm addition is the highest at 293 and 423 K. However, the tensile strength of the alloy with Sn addition is the highest at 448 K.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Dobrzańskia L.A., Tańskia T., Čížekb L., and Brytan Z., Structure and properties of magnesium cast alloys, J. Mater. Process. Technol., 2007, 192: 567.
Chen Z.H., Magnesium Alloys (in Chinese), Chemical Industry Press, Beijing, 2004: 20.
LI J.Q., Dong X.P., Fan Z.T., and Wang Y.Q., Effects of Ce and Sb on the microstructure and properties of AZ91D magnesium alloy prepared by the EPC process, Rare Met., 2008, 22(1): 41.
Liu Z.L., Chen Z.F., Liu X.Q., and Tao J., Influence of Sb addition on heat resistance of AE41 Magnesium alloy, Chin. J. Mater. Res. (in Chinese), 2006, 20(2): 186.
Sun Y.S, Wong K.Z., and Yuan G.Y., Effects of Sn Addition on Microstructure and Mechanical Properties of Magnesium Alloys, Chin. J. Nonferrous Met. (in Chinese), 1999, 9(1): 55.
Li J.H., Li Q.A., Xie J.C., Zhang X.Y., and Li K.J., Effects of Y and Nd combined addition on mechanical properties of Mg-6Al alloy, Trans. Mater. Heat Treat. (in Chinese), 2008, 29(4): 79.
Zou H.H., Zeng X.Q., Zhai C.Q, and Ding W.J., The effects of yttrium element on microstructure and mechanical properties of Mg-5wt%Zn-2wt%Al alloy, Mater. Sci. Eng. A, 2005, 402: 142.
Sheng J.W., Use of Miedema’s model to predict enthalpies of formation of liquid lanthanide-zinc alloys, J. Mater. Sci. Lett., 2002, 21: 1319.
Ouyang Y.F., Zhang B.W., Liao S.Z., and Jin Z.P., The study of thermodynamical properties for rare earth magnesium al loys, Rare Met. Mater. Eng. (in Chinese), 1995, 24(6): 32.
Zhang R.F., Sheng S.H., and Liu B.X., Predicting the formation enthalpies of binary intermetallic compounds, Chem. Phys. Lett., 2007, 442: 511.
Zhang G.Y., Zhang H., Gao M., and Wei D., Mechanism of effects of rare earths on microstructure and properties at elevated temperatures of AZ91 magnesium alloy, J. Rare Earths (in Chinese), 2007, 25: 348.
Liu H.M., Chen Y.G., Tang Y.B., Huang D.M., and Niu. G., The microstructure and mechanical properties of permanent-mould cast Mg-5 wt%Sn-(0–2.6) wt%Di alloys, Mater. Sci. Eng. A, 2006. 437: 348.
Song P.W., Guo X.F., Jing X.T., and Ge L.L., Effects of Sb on Microstructure and Mechanical Properties of Mg-4Al-2Si Alloy, Spec. Cast. Nonferrous Alloys (in Chinese), 2007, 27(2): 88.
Huang X.F, Wang Q.D., Zeng X.Q., Yuan G.Y., Zhu Y.P., and Ding W.J., Influence of rare earth on mechanical properties and high temperature creep properties of AM50 magnesium alloy, J. Rare Earths (in Chinese), 2004, 22(4): 493.
Wang J.T., Yin D.L., Liu J.Q., Tao J., Su Y.L., and Zhao X., Effect of grain size on mechanical property of Mg-3Al-1Zn alloy, Scripta Mater., 2008, 59: 63.
Hu G.X., Cai X., Fundamentals of Materials Science (in Chinese), Shanghai Jiaotong University Press, Shanghai, 2000: 31.
Yang M.B, Pan F.S, Cheng R.J. and Shen J., Comparison about effects of Sb, Sn and Sr on as-cast microstructure and mechanical properties of AZ61-0.7Si magnesium alloy, Mater. Sci. Eng. A, 2008, 489: 413.
Fang C.F., Zhang X.G., Yu Y.H., and Jin J.Z., Properties and forming technology of magnesium alloys and its application, Heat Treat. Met. (in Chinese), 2006, 31(3): 12.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Li, K., Li, Q., Jing, X. et al. Effects of Sb, Sm, and Sn additions on the microstructure and mechanical properties of Mg-6Al-1.2Y-0.9Nd alloy. Rare Metals 28, 516–522 (2009). https://doi.org/10.1007/s12598-009-0100-9
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12598-009-0100-9