Abstract
In this paper, microstructure and mechanical properties of AZ61 magnesium alloys with the Y and Ca combined addition were investigated. The results exhibit that the addition of Y and Ca into AZ61 alloy leads to effective refinement of the microstructure and additional block-like Al2Y and long-rod Al2Ca phases found in AZ61–1.2Y alloy and AZ61–1.2Y–1.0Ca alloy, respectively. The tensile strength, elongation and creep properties of AZ61–Y–Ca alloy are significantly increased by the addition of Y and Ca. The tensile strength of AZ61–1.2Y–1.0Ca alloy at 20 and 175 °C is up to 225 and 175 MPa, and compared with AZ61 alloy, the strengths of the alloy are enhanced by 37 and 80%, respectively. AZ61–1.2Y–1.0Ca alloy achieves the lowest steady creep rate 2.5027 × 10−7 s−1 that is about 4 times lower than that of AZ61 alloy. The poor mechanical properties of AZ61 magnesium alloy is attributed to the softening of β-phase Mg17Al12, especially at elevated temperature. The tensile strength and creep resistance of AZ61–1.2Y–1.0Ca alloy are effectively improved by the Al2Ca and Al2Y phases.
Similar content being viewed by others
References
S.M. Zhu, M.A. Easton, M.A. Gibson, M.S. Dargusch, J.F. Nie, Mater. Sci. Eng. A 578, 377–382 (2013)
S.M. Zhu, M.A. Gibson, J.F. Nie, M.A. Easton, T.B. Abbott, Scripta Mater. 58, 477–480 (2008)
J. Wang, J. Fu, X. Dong, Y. Yang, Mater. Des. 36, 432–437 (2012)
R. Mahmudi, F. Kabirian, Z. Nematollahi, Mater. Des. 32, 2583–2589 (2011)
S. Spigarelli, M. Cabibbo, E. Evangelista, M. Talianker, V. Ezersky, Mater. Sci. Eng. A 289, 172–181 (2000)
S.-L. Cheng, G.-C. Yang, J.-F. Fan, Y.-J. Li, Y.-H. Zhou, Trans. Nonferrous Met. Soc. China 19, 299–304 (2009)
Y. Zhang, L. Yang, J. Dai, J. Ge, G. Guo, Z. Liu, Mater. Des. 63, 439–445 (2014)
Y. Wu, W. Du, Z. Yan, Z. Wang, T. Zuo, Rare Met. 29, 55–61 (2010)
F. Wang, Y. Wang, P.L. Mao, B.Y. Yu, Q.Y. Guo, Trans. Nonferrous Met. Soc. China 20, S311–S317 (2010)
Y. Terada, Y. Murata, T. Sato, Mater. Sci. Eng. A 613, 136–140 (2014)
J. Liu, W. Wang, S. Zhang, D. Zhang, H. Zhang, J. Alloys Compd. 620, 74–79 (2015)
B. **g, S. Yangshan, X. Feng, X. Shan, Q. **g, T. Weijian, Scripta Mater. 55, 1163–1166 (2006)
D. Amberger, P. Eisenlohr, M. Göken, Mater. Sci. Eng. A 510–511, 398–402 (2009)
F. Naghdi, R. Mahmudi, Mater. Sci. Eng. A 616, 161–170 (2014)
F. Naghdi, R. Mahmudi, Mater. Sci. Eng. A 610, 315–325 (2014)
M.J. Nayyeri, Y. Ganjkhanlou, A. Kolahi, A.M. Jamili, Trans. Indian Inst. Met. 67, 469–475 (2014)
W.L. **ao, S.S. Jia, J. Wang, Y.M. Wu, L.M. Wang, Mater. Sci. Eng. Struct. Mater. Prop. Microstruc. Process. 474, 317–322 (2008)
M. Yang, H. Li, C. Duan, J. Zhang, J. Alloys Compd. 579, 92–99 (2013)
B. Nami, H. Razavi, S. Mirdamadi, S.G. Shabestari, S.M. Miresmaeili, Metall. Mater. Trans. A 41, 1973–1982 (2010)
W. Ding, T. **a, W. Zhao, Materials 7, 3663 (2014)
B.L. Bramfitt, Metall. Trans. 1, 2958 (1970)
M.B. Yang, C.Y. Duan, H.L. Li, T.Z. Guo, J. Zhang, J. Alloys Compd. 574, 165–173 (2013)
S.M. Zhu, B.L. Mordike, J.F. Nie, Mater. Sci. Eng. Struct. Mater. Prop. Microstruct. Process. 483–84, 583–586 (2008)
Y. Zhang, L. Yang, J. Dai, G. Guo, Z. Liu, Mater. Sci. Eng. A 610, 309–314 (2014)
N. Balasubramani, U.T.S. Pillai, B.C. Pai, J. Alloys Compd. 457, 118–123 (2008)
I.P. Moreno, T.K. Nandy, J.W. Jones, J.E. Allison, T.M. Pollock, Scripta Mater. 48, 1029–1034 (2003)
V. Angelini, L. Ceschini, A. Morri, Int. J. Metalcast. 11, 382–395 (2017)
A. Elsayed, E. Vandersluis, S.L. Sin, C. Ravindran, Int. J. Metalcast. 11, 749–765 (2017)
M.J. Shen, F.Y. Chen, J.M. Hou, Int. J. Metalcast. 11, 287–293 (2017)
Acknowledgements
This research was financially supported by the funding of the National Natural Science Foundation of China (NSFC-Henan Joint Fund of Personnel Training, U1404501), National Natural Science Foundation of China (51571084) and Natural science research project of Henan Provincial Department of Education (16A430036).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Jun, C., Qing, Z. & Quanan, L. Microstructure and Mechanical Properties of AZ61 Magnesium Alloys with the Y and Ca Combined Addition. Inter Metalcast 12, 897–905 (2018). https://doi.org/10.1007/s40962-018-0222-7
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40962-018-0222-7