• Zheng Jia College of Mechanical Engineering, Shenyang University, Shenyang 110044, China
  • Yongzhi Yu College of Mechanical Engineering, Shenyang University, Shenyang 110044, China
  • Li Fu College of Mechanical Engineering, Shenyang University, Shenyang 110044, China
  • Wenyi Hu College of Chemistry and Material Science, Longyan University, Fujian, Longyan 366300, China
Keywords: Mg-3Sn-1Ca-X alloys, indirect extrusion, CaMgSn phase, elevated-temperature mechanical properties


In this study, the effects of Zr, Zn and Cu additions on the microstructure, room-temperature and high-temperature mechanical properties of an Mg-3Sn-1Ca alloy (from 25 °C to 250 °C) were studied. The results reveal that additions of Zr and Zn do not change the phase composition of the alloy, composed of CaMgSn and Mg2Sn phases. After the addition of Zn, the grains are significantly refined, the volume fraction of the second phase is increased and dispersed, and the Mg2Ca phase is precipitated. The grain refinement of Zr is better than that of Zn. After adding the Cu element, the Mg2Cu phase precipitates besides the CaMgSn phase. A comparison of mechanical properties shows that the alloy with Zr (TXK311) has the best mechanical properties at room temperature and high temperature, and the elongation of the TXK311 alloy can reach 68.3 % at 250 °C. The TXK311 alloy was comprehensively considered to find its optimum mechanical properties. The analysis shows that fine grains, a uniform phase distribution and texture play important roles in the deformation of the alloy.


[1] S.V.S. Prasad, S.B. Prasad, K. Verma, R.K. Mishra, V. Kumar, S. Singh, The role and significance of Magnesium in modern day research-A review, Journal of Magnesium and Alloys, 10 (2022) 1,1-61, doi.org/10.1016/j.jma.2021.05.012
[2] S. less, B. Hrapkowicz, M. Karolus, K. Gołombek, Characteristics of the Mg-Zn-Ca-Gd Alloy after Mechanical Alloying, Materials, 14 (2021) 1, 226, doi.org/10.3390/ma14010226
[3] D. Dvorský, J. Kubásek, D. Vojtìch, M. ^avojský, P. Minárik, Effect of heat pre-treatment and extrusion on the structure and mechanical properties of WZ21 magnesium alloy, Materiali in tehnologije, 52 (2018) 4, 499-505, doi:10.17222/mit.2017.214
[4] W.L. Wang, Y.L. Qiu, J.D. Jia, X. Yan, W. Zhang, Influence of samarium on the microstructure and mechanical properties of Mg-Y-Zn-Zr alloys, Mater Tehnol, 52 (2018) 4, 405-410, doi:10.17222/mit.2017.175
[5] C.C. Xiang, Z.D. Xiao, H.L. Ding, Z.J. Wang, Compressive Properties and Energy Absorption Characteristics of Extruded Mg-Al-Ca-Mn Alloy at Various High Strain Rates, Materials (Basel, Switzerland), 14 (2020) 1, doi.org/10.3390/ma14010087
[6] D. Dvorsky, J. Kubasek, D. Vojtech, P. Minárik, J. Stráská, The effect of Y, Gd and Ca on the ignition temperature of extruded magnesium alloys, Materiali in tehnologije, 54 (2020) 5,669-675, doi:10.17222/mit.2019.284
[7] P.L. Jiang, C. Blawert, J. Bohlen, M.L. Zheludkevich, Corrosion performance, corrosion fatigue behavior and mechanical integrity of an extruded Mg4Zn0.2Sn alloy, Journal of Materials Science & Technology, 59 (2020),107-116, doi.org/10.1016/j.jmst.2020.04.042
[8] H.M. Liu, Y. G. Chen, Y.B. Tang, S.H. Wei, G. Niu, The microstructure, tensile properties, and creep behavior of as-cast Mg–(1–10)% Sn alloys, Journal of Alloys and Compounds, 440 (2007) 1-2, 122-126, doi.org/10.1016/j.jallcom.2006.09.024
[9] H.C. Pan, G.W. Qin, M. Xu, H Fu, Y.P. Ren, F.S. Sheng, Z.Y. Gao, C.Y. Zhao, Q.S. Yang, J. She, B. Song, Enhancing mechanical properties of Mg–Sn alloys by combining addition of Ca and Zn, Materials & Design, 83 (2015),736-44, doi.org/10.1016/j.matdes.2015.06.032
[10] A. Baghani, H. Khalilpour, S.M. Miresmaeili, Microstructural evolution and creep properties of Mg-4Sn alloys by addition of calcium up to 4 wt.%, Transactions of Nonferrous Metals Society of China, 30 (2020) 4, 896-904, doi.org/10.1016/S1003-6326(20)65263-3
[11] K.P. Rao, Y.V.R.K. Prasad, N. Hort, K.U. Kainer, Hot workability characteristics of cast and homogenized Mg-3Sn-1Ca alloy, Journal of Materials Processing Technology, 201 (2008) 1-3, 359-363, doi:10.1016/j.jmatprotec.2007.11.148
[12] M. Kavyani, G.R. Ebrahimi, H.R. Ezatpour, M. Jahazi, Microstructure refinement, mechanical and biocorrosion properties of Mg-Zn-Ca-Mn alloy improved by a new severe plastic deformation process, Journal of Magnesium and Alloys, 10 (2022) 6, 1640-1662, doi.org/10.1016/j.jma.2020.11.013
[13] F. Wang, Y. Feng, M.S. Li, X.Y. Teng, Effect of Ca and Zr additions and aging treatments on microstructure and mechanical properties of Mg-Sn alloy, Materials Science Forum. Trans Tech Publications Ltd, 993 (2020), 152-160, doi.org/10.4028/www.scientific.net/MSF.993.152
[14] C.M. Wang, L.M. Zeng, W.L. Zhang, F.Q. Tang, W.C. Ding, S.F. Xiao, T.X. Liang, Enhanced mechanical properties and corrosion resistance of rolled Mg-1.5Sn-0.5Ca alloy by Ce microalloying, Materials Characterization, 179 (2021), 111325, doi.org/10.1016/j.matchar.2021.111325
[15] Z.R. Zeng, M.Z. Bian, S.W. Xu, C.H.J. Davies, N. Birbilis, J.F. Nie, Effects of dilute additions of Zn and Ca on ductility of magnesium alloy sheet, Materials Science and Engineering: A, 674 (2016), 459-471, doi.org/10.1016/j.msea.2016.07.049
[16] L.Y. Wei, J.Y. Li, Y. Zhang,H.Y. Lai, Effects of Zn content on microstructure, mechanical and degradation behaviors of Mg-xZn-0.2 Ca-0.1 Mn alloys, Materials Chemistry and Physics, 241 (2020), 122441. doi.org/10.1016/j.matchemphys.2019.122441
[17] Q.H.Wang, H.W. Zhai, L.T. Liu, Z.Y. Jin, L.Y. Zhao, J.J. He, J. Bin, Exploiting an as-extruded fine-grained Mg-Bi-Mn alloy with strength-ductility synergy via dilute Zn addition,Journal of Alloys and Compounds, 924 (2022), 166337. doi.org/10.1016/j.jallcom.2022.166337
[18] H.Y. Wang, J. Rong, G.J. Liu, M. Zha, C. Wang, D. Luo, Q.C. Jiang, Effects of Zn on the microstructure and tensile properties of as-extruded Mg-8Al-2Sn alloy, Materials Science and Engineering: A, 698 (2017), 249-255, doi.org/10.1016/j.msea.2017.05.055
[19] W.N. Tang, S.S. Park, B.S. You, Effect of the Zn content on the microstructure and mechanical properties of indirect-extruded Mg–5Sn–xZn alloys, Materials & Design, 32 (2011) 6,3537-3543, doi.org/10.1016/j.matdes.2011.02.012
[20] S. Dai, F. Wang, Z. Wang, Z. Liu, P.L. Mao, Effect of Cu on microstructure, mechanical properties, and texture evolution of ZK60 alloy fabricated by hot extrusion− shearing process, Transactions of Nonferrous Metals Society of China, 30 (2020) 6, 1511-1523, doi.org/10.1016/S1003-6326(20)65315-8
[21] Y.Q. Tang, Y.G. Chen, S.F. Xiao, W.C. Ding, C.M. Wang, X. Liu, Microstructure, Mechanical Properties and Compressive Creep Behavior of as-Cast Mg-5Sn-(0∼2)Cu Alloys, Rare Metal Materials and Engineering, 43 (2014) 6, 1291-1295, doi.org/10.1016/S1875-5372(14)60109-0
[22] X. Li, J.W. Liu, C.P. Luo, Precipitation behavior of cast ZC62 magnesium alloy, Acta Metallurgica Sinica, 42 (2006), 733-738, doi: 10.3321/j.issn:0412-1961.2006.07.011
[23] H.M. Zhu, G. Sha, J.W. Liu, C.L. Wu, C.P. Luo, Z.W. Liu, R.K. Zheng, S.P. Ringer, Microstructure and mechanical properties of Mg-6Zn-xCu-0.6Zr (wt.%) alloys, Journal of Alloys and Compounds, 509 (2011), 3526-3531, doi.org/10.1016/j.jallcom.2010.12.165
[24] C. Wang, T.J. Luo, Y.T. Liu, T. Lin, Y.S. Yang, Microstructure and mechanical properties of Mg-5Zn-3.5 Sn-1Mn-0.5 Ca-0.5 Cu alloy, Materials Characterization, 147 (2019), 406-413, doi.org/10.1016/j.matchar.2018.11.029
[25] T. Homma, C.L. Mendis, K. Hono, S. Kamado, Effect of Zr addition on the mechanical properties of as-extruded Mg–Zn–Ca–Zr alloys, Materials Science and Engineering: A, 527 (2010) 9, 2356-2362, doi.org/10.1016/j.msea.2009.12.024
[26] F.J. Xing, F. Guo, J. Su, X.P. Zhao, H.X. Cai, The existing forms of Zr in Mg-Zn-Zr magnesium alloys and its grain refinement mechanism, Materials Research Express, 8 (2021) 6, 066516, DOI 10.1088/2053-1591/ac083c
[27] C. Xu, T. Nakata, G.H. Fan, X.W. Li, G.Z. Tang, L. Geng, S. Kamado, Microstructure and mechanical properties of extruded Mg–Gd–Y–Zn alloy with Mn or Zr addition, Journal of Materials Science, 54 (2019), 10473-10488, doi.org/10.1007/s10853-019-03607-4
[28] F. Kiani, J.X. Lin, A. Vahid, K. Munir, C. Wen, Y.C. Li, Mechanical and corrosion properties of extruded Mg–Zr–Sr alloys for biodegradable implant applications, Materials Science and Engineering: A, 831 (2022), 142192, doi.org/10.1016/j.msea.2021.142192
[29] C.M. Wang, S. Guo, L.M. Zeng, D.S. Zheng, J.C. Xu, M.N. Yang, T.X. Liang, Effects of second phases on microstructure, microhardness, and corrosion behavior of Mg-3Sn-(1Ca) alloys, Materials, 12 (2019) 16, 2515, doi.org/10.3390/ma12162515
[30] H.C. Pan, H. Fu, Y.P. Ren, Q.Y. Huang, Z.Y. Gao, J. She, G.W. Qin, Q.S. Yang, B. Song, F.S. Pan, Effect of Cu/Zn on microstructure and mechanical properties of extruded Mg–Sn alloys[J]. Materials Science and Technology, 32 (2016) 12,1240-1248, doi.org/10.1080/02670836.2015.1115604
[31] Y.Z. Meng, J.M. Yu, K. Liu, H.S. Yu, F. Zhang, Y.J. Wan, Z.M. Zhang, N. Luo, H.H. Wang, The evolution of long-period stacking ordered phase and its effect on dynamic recrystallization in Mg-Gd-Y-Zn-Zr alloy processed by repetitive upsetting-extrusion, Journal of Alloys and Compounds, 828 (2020), 154454, doi.org/10.1016/j.jallcom.2020.154454
[32] W.J. Wu, W.Z. Chen, L.X. Zhang, X.M. Chen, H.X. Wang, W.K. Wang, W.C. Zhang, Improvement of tension/compression asymmetry for high-performance ZK61 magnesium alloy rod via tailoring deformation parameters: Upsetting-extrusion temperature and upsetting ratio. Materials Science and Engineering: A, 823 (2021), 141767, doi.org/10.1016/j.msea.2021.141767
[33] S.H. Kim, S.H. Park. Underlying mechanisms of drastic reduction in yield asymmetry of extruded Mg-Sn-Zn alloy by Al addition, Materials Science and Engineering: A, 733 (2018), 285-290, doi.org/10.1016/j.msea.2018.07.063
[34] Q.H. Wang, B. Jiang, A. Tang, S.X. Ma, Z.T. J iang, Y.F. Chai, B. Luo, F.S. Pan, Ameliorating the mechanical properties of magnesium alloy: Role of texture[J]. Materials Science and Engineering: A, 689 (2017), 395-403, doi.org/10.1016/j.msea.2017.02.067
How to Cite
Jia Z, Yu Y, Fu L, Hu W. EFFECT OF Zr, Zn AND Cu ADDITIONS ON ELEVATED-TEMPERATURE MECHANICAL PROPERTIES OF AS-EXTRUDED Mg-3Sn-1Ca ALLOY. MatTech [Internet]. 2024Feb.6 [cited 2024Apr.24];58(1):69–79. Available from: https://mater-tehnol.si/index.php/MatTech/article/view/904