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Effects of minor Y addition on microstructure and mechanical properties of Mg–Nd–Zn–Zr alloy

Published online by Cambridge University Press:  18 July 2017

Yushi Chen ,
Guohua Wu ,
Wencai Liu ,
Liang Zhang ,
Haohao Zhang  and
Wendong Cui
Yushi Chen
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
Guohua Wu*
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
Wencai Liu
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and Key State Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai 200240, China; and Shanghai Light Alloy Net Forming National Engineering Research Center Co., Ltd, Shanghai 201615, China
Liang Zhang
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
Haohao Zhang
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
Wendong Cui
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
*
a) Address all correspondence to this author. e-mail: ghwu@sjtu.edu.cn
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Abstract

Microstructure and mechanical properties of Mg–0.43Nd–xY–0.08Zn–0.11Zr (x = 0, 0.03, 0.06, and 0.12 at.%) alloys were investigated. The results indicated that Mg24Y5 phase was formed in the as-cast Y-containing alloys, the grains were refined and the amount of needle-like Mg12Nd phase in the α-Mg grain interior was increased with increasing Y addition. After solution treatment, the Mg24Y5 phase and needle-like Mg12Nd phase nearly completely dissolved into the α-Mg matrix and long-rod-like Zn2Zr3 phase occurred. The amount of Zn2Zr3 phase was increased with increasing Y content after age treatment. Mg–0.43Nd–0.12Y–0.08Zn–0.11Zr alloy exhibited the best combination of strength and elongation in all conditions, especially in the temperature range of 200–300 °C, and an Arrhenius model was established to study the plastic flow behavior. The improvement in mechanical properties was attributed to the grain refining, solution strengthening and enhanced precipitation hardening of Zn2Zr3 phase and β-type phase.

Keywords

Mgalloycasting
Type
Articles
Information
Journal of Materials Research , Volume 32 , Issue 19 , 16 October 2017 , pp. 3712 - 3722
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Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Yang-T. Cheng

References

REFERENCES

Antion, C., Donnadieu, P., Perrard, F., Deschampa, A., Tassin, C., and Pisch, A.: Hardening precipitation in a Mg–4Y–3RE alloy. Acta Mater. 51, 5335 (2003).Google Scholar
Yuan, L., Shi, W.C., Jiang, W.M., Zhao, Z., and Shan, D.B.: Effect of heat treatment on elevated temperature tensile and creep properties of the extruded Mg–6Gd–4Y–Nd–0.7Zr alloy. Mater. Sci. Eng., A 658, 339 (2016).Google Scholar
Zhang, L., Zhang, J.H., Xu, C., Liu, S.J., Jiao, Y.F., Xu, L.J., Wang, Y.B., Meng, J., Wu, R.Z., and Zhang, M.L.: Investigation of high-strength and superplastic Mg–Y–Gd–Zn alloy. Mater. Des. 61, 168 (2014).Google Scholar
Li, Y.L., Wu, G.H., Chen, A.T., Nodooshan, H.R.J., Liu, W.C., Wang, Y.X., and Ding, W.J.: Effects of Gd and Zr additions on the microstructures and high-temperature mechanical behavior of Mg–Gd–Y–Zr magnesium alloys in the product form of a large structural casting. J. Mater. Res. 30, 3461 (2015).Google Scholar
Nodooshan, H.R.J., Liu, W.C., Wu, G.H., Ding, W.J., and Mahmudi, R.: Effect of Gd addition on the wear behavior of Mg–xGd–3Y–0.5 Zr alloys. J. Mater. Res. 31, 1133 (2016).Google Scholar
Li, H.Z., Lv, F., Liang, X.P., Qi, Y.L., Zhu, Z.X., and Zhang, K.L.: Effect of heat treatment on microstructures and mechanical properties of a cast Mg–Y–Nd–Zr alloy. Mater. Sci. Eng., A 667, 409 (2016).Google Scholar
Ning, Z.L., Yi, J.Y., Qian, M., Sun, H.C., Cao, F.Y., Liu, H.H., and Sun, J.F.: Microstructure and elevated temperature mechanical and creep properties of Mg–4Y–3Nd–0.5Zr alloy in the product form of a large structural casting. Mater. Des. 60, 218 (2014).Google Scholar
Fu, P.H., Peng, L.M., Jiang, H.Y., Chang, J.W., and Zhai, C.Q.: Effects of heat treatments on the microstructures and mechanical properties of Mg–3Nd–0.2Zn–0.4Zr (wt%) alloy. Mater. Sci. Eng., A 486, 183 (2008).Google Scholar
Li, Z.M., Fu, P.H., Peng, L.M., Wang, Y.X., Jiang, H.Y., and Wu, G.H.: Comparison of high cycle fatigue behaviors of Mg–3Nd–0.2Zn–Zr alloy prepared by different casting processes. Mater. Sci. Eng., A 579, 170 (2013).CrossRefGoogle Scholar
Sanaty-Zadeh, A., Luo, A.A., and Stone, D.S.: Comprehensive study of phase transformation in age-hardening of Mg–3Nd–0.2Zn by means of scanning transmission electron microscopy. Acta Mater. 94, 294 (2015).CrossRefGoogle Scholar
Su, Z.J., Liu, C.M., Wang, Y.C., and Shu, X.: Effect of Y content on microstructure and mechanical properties of Mg–2.4Nd–0.2Zn–0.4Zr alloys. Mater. Sci. Technol. 29, 148 (2013).Google Scholar
Hu, G.S., Xing, B., Huang, F.L., Zhong, M.P., and Zhang, D.F.: Effect of Y addition on the microstructures and mechanical properties of as-aged Mg–6Zn–1Mn–4Sn (wt%) alloy. J. Alloy Compd 689, 326 (2016).CrossRefGoogle Scholar
Zhao, J., Zhang, J., Liu, W.C., Wu, G.H., and Zhang, L.: Effect of Y content on microstructure and mechanical properties of as-cast Mg–8Li–3Al–2Zn alloy with duplex structure. Mater. Sci. Eng., A 650, 240 (2016).Google Scholar
Li, J.H., Sha, G., Jie, W.Q., and Ringer, S.P.: Precipitation microstructure and their strengthening effects of an Mg–2.8Nd–0.6Zn–0.4Zr alloy with a 0.2 wt% Y addition. Mater. Sci. Eng., A 538, 272 (2012).CrossRefGoogle Scholar
Li, Z.M., Fu, P.H., Peng, L.M., Wang, Y.X., and Jiang, H.Y.: Strengthening mechanisms in solution treated Mg–yNd–zZn–xZr alloy. J. Mater. Sci. 48, 6367 (2013).Google Scholar
Wilson, R., Bettles, C.J., Muddle, B.C., and Nie, J.F.: Precipitation hardening in Mg–3 wt% Nd (–Zn) casting alloys. Mater. Sci. Forum 419, 267 (2003).Google Scholar
Fu, P.H., Peng, L.M., Jiang, H.Y., Ma, L., and Zhai, C.Q.: Chemical composition optimization of gravity cast Mg–yNd–xZn–Zr alloy. Mater. Sci. Eng., A 496, 177 (2008).Google Scholar
Nie, J.F.: Precipitation and hardening in magnesium alloys. Metall. Mater. Trans. A 43, 3891 (2012).CrossRefGoogle Scholar
Toda-Caraballo, I., Galindo-Nava, E.I., and Rivera-Díaz-del-Castillo, P.E.J.: Understanding the factors influencing yield strength on Mg alloys. Acta Mater. 75, 287 (2014).CrossRefGoogle Scholar
Fleischer, R.L.: Substitutional solution hardening. Acta Metall. Mater. 11, 203 (1963).CrossRefGoogle Scholar
Labusch, R.: A statistical theory of solid solution hardening. Phys. Status Solidi B 41, 659 (1970).Google Scholar
Do Lee, C.: Effect of grain size on the tensile properties of magnesium alloy. Mater. Sci. Eng., A 459, 355 (2007).Google Scholar
Gao, L., Chen, R.S., and Han, E.H.: Effects of rare-earth elements Gd and Y on the solid solution strengthening of Mg alloys. J. Alloy Compd. 481, 379 (2009).Google Scholar
Akhtar, A. and Teghtsoonian, E.: Substitutional solution hardening of magnesium single crystals. Philos. Mag. 25, 897 (1972).Google Scholar
Liu, S.J., Yang, G.Y., Luo, S.F., and Jie, W.Q.: Microstructure evolution during heat treatment and mechanical properties of Mg–2.49Nd–1.82Gd–0.19Zn–0.4Zr cast alloy. Mater. Charact. 107, 334 (2015).Google Scholar
Tang, C.P., Liu, W.H., Chen, Y.Q., Liu, X., and Deng, Y.L.: Effects of thermal treatment on microstructure and mechanical properties of a Mg–Gd-based alloy plate. Mater. Sci. Eng., A 659, 63 (2016).Google Scholar
Yue, H.Y., Fu, P.H., Li, Z.M., and Peng, L.M.: Tensile crack initiation behavior of cast Mg–3Nd–0.2Zn–0.5Zr magnesium alloy. Mater. Sci. Eng., A 673, 458 (2016).Google Scholar
Agnew, S.R., Yoo, M.G., and Tome, C.N.: Application of texture simulation to understanding mechanical behavior of Mg and solid solution alloys containing Li or Y. Acta Mater. 49, 4277 (2001).Google Scholar
Zheng, X.W., Luo, A.A., Dong, J., Sachdev, A.K., and Ding, W.J.: Plastic flow behavior of a high-strength magnesium alloy NZ30K. Mater. Sci. Eng., A 532, 616 (2012).Google Scholar
Nodooshan, H.R.J., Wu, G.H., Liu, W.C., Wei, G.L., Li, Y.L., and Zhang, S.: Effect of Gd content on high temperature mechanical properties of Mg–Gd–Y–Zr alloy. Mater. Sci. Eng., A 651, 840 (2016).Google Scholar
Maksoud, I.A., Ahmed, H., and Rödel, J.: Investigation of the effect of strain rate and temperature on the deformability and microstructure evolution of AZ31 magnesium alloy. Mater. Sci. Eng., A 504, 40 (2009).Google Scholar
Hirai, K., Somekawa, H., Takigawa, Y., and Higashi, K.: Effects of Ca and Sr addition on mechanical properties of a cast AZ91 magnesium alloy at room and elevated temperature. Mater. Sci. Eng., A 403, 276 (2005).CrossRefGoogle Scholar
Galiyev, A., Kaibyshev, R., and Gottstein, G.: Correlation of plastic deformation and dynamic recrystallization in magnesium alloy ZK60. Acta Mater. 49, 1199 (2001).CrossRefGoogle Scholar
Barnett, M.R.: Influence of deformation conditions and texture on the high temperature flow stress of magnesium AZ31. J. Light Met. 1, 167 (2001).Google Scholar