EFFECT OF Ce AND La ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AN EXTRUDED Mg-4Sn ALLOY
Keywords:
Magnesium alloy; Mechanical properties; Grain refinement
Abstract
The effects of Ce and La additions on the microstructure and mechanical properties of extruded Mg-4Sn alloy have been investigated at room temperature. The results show that α-Mg and Mg2Sn phases are found in the extruded T4 alloys. While the MgSnCe phase was formed after adding Ce to Mg-4Sn-1Ce. The MgSnLa phase was formed by the addition of La. Incomplete dynamic recrystallization occurred in the extrusion process of the three alloys. The second phase of the extruded alloy is broken and distributed in a semi continuous streamline along the extrusion direction, and the grain structure of the alloy is refined and presents equiaxed crystal morphology. The fiber texture with (0001) basal plane parallel to the extrusion direction (ED) was exhibited by all three alloys. Brittle fracture is the way in which extruded alloys break at room temperature. The highest tensile strength and yield strength of the extruded Mg-4Sn-1Ce alloy are 246 MPa and 183 MPa. Grain refinement and second-phase dispersion strengthening are considered to play a key role in the strength optimization of alloys.
References
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[2] DECKER R F. The renaissance in magnesium [J]. Advanced Materials & Processes, 1998, 154(3): 3133.
[3] Qiang G , Hongge Y , Zhenhua C ,et al.EVOLUTION OF THE GRAIN ORIENTATION OF AZ80 MAGNESIUM ALLOY DURING MULTIPLE FORGING PROCESS[J].Acta Metallurgica Sinica -Chinese Edition-, 2007, 43(6):619-624.
[4] Zhuo X, Zhao L, Gao W, et al. Recent progress of Mg-Sn based alloys: the relationship between aging response and mechanical performance[J]. Journal of Materials Research and Technology, 2022, 21:186-211.
[5] Jia Z, Yu Y, Yu B, et al. Effect of Ca and Zr additions on microstructure and mechanical properties of as-extruded Mg-3Sn alloy[J]. Materials, 2022, 15(18):6343.
[6] N. Stanford, M.R. Barnett, Scripta Materialia 58 (2008) 179.
[7] J. Bohlen, M.R. Nürnberg, J.W. Senn, D. Letzig, S.R. Agnew, Acta Materialia 55(2007) 2101.
[8] N. Stanford, M.R. Barnett, Materials Science and Engineering A 496 (2008)399–408.
[9] N. Stanford, D. Atwell, A. Beer, C. Davies, M.R. Barnett, Scripta Materialia 59(2008) 772–775
[10] Wang C, Li H, Guo E, et al. The effect of Gd on the microstructure evolution and mechanical properties of Mg-4Zn-0.6 Ca alloy[J]. Materials Science and Engineering: A, 2023, 868:144756.
[11] Xu C, Nakata T, Fan G H, et al. Microstructure and mechanical properties of extruded Mg–Gd–Y–Zn alloy with Mn or Zr addition[J]. Journal of Materials Science, 2019, 54(14): 10473-10488.
[12] Lv B, Peng J, Peng Y, et al. The effect of addition of Nd and Ce on the microstructure and mechanical properties of ZM21 Mg alloy[J]. Journal of Magnesium and Alloys, 2013, 1(1): 94-100.
[13] Stanford N. Micro-alloying Mg with Y, Ce, Gd and La for texture modification—A comparative study[J]. Materials Science and Engineering: A, 2010, 527(10-11): 2669-2677.
[14] N. Stanford, I. Sabirov, G. Sha, A. La Fontaine, S. Ringer, M.R. Barnett, Metallurgical and Materials Transactions A (2009), in press.
[15] W.E. Mercer, J.E. Hill, SAE Technical Paper 920073 (1992).
[16] Zhang D F, Qi F G, Xu X X. Effect of Ce and heat treatment on microstructure and mechanical properties of Mg-Zn-Mn deformed magnesium alloy [C]//2011 China Materials Seminar. 0[2024-05-31].
[17] Su G H, Sun Y, Cao Z Y. Microstructure and Mechanical Properties of Mg-1Mn-0.6Ce Alloy Containing Yttrium[J]. Advanced Materials Research, 2011, 391-392:638-641.
[18] Wang C, Zeng L, Zhang W, et al. Enhanced mechanical properties and corrosion resistance of rolled Mg-1.5Sn-0.5Ca alloy by Ce microalloying[J]. Materials Characterization, 2021, 179:111325.
[19] Zhao J, Jiang B, Wang Q, et al. Influence of Ce content on the microstructures and tensile properties of Mg-1Gd-0.5Zn alloys[J]. Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing, 2021:823.
[20] Liu Y F, Jia X J, Qiao X G, et al. Effect of La content on microstructure, thermal conductivity and mechanical properties of Mg–4Al magnesium alloys[J]. Journal of Alloys and Compounds, 2019, 806: 71-78.
[21] Wang C, Ning H, Liu S, et al. Enhanced ductility and strength of Mg-1Zn-1Sn-0.3Y-0.2Ca alloy achieved by novel micro-texture design[J]. Scripta Materialia, 2021, 204:114119.
[22] Chen Z H, Xu F Y, Bo D F, et al. Dynamic recrystallization of magnesium alloy [J]. Chemical industry and engineering progress, 2006, 12(2): 140-146．
[23] Cao X, Zhang Z, Xu C, et al. Micro-galvanic corrosion behavior and mechanical properties of extruded Mg-2Y-1Zn-0.4Zr-0.3Sr alloys with different extrusion temperament immersed in simulated body fluids[J]. Materials Chemistry and Physics, 2021, 271:124928.
[24] Huang X, Liang Y, Cao X, et al. Effect of Zr content on microstructure and properties of Mg5Zn-2Al magnesium alloy [J]. Special casting and non-ferrous alloys,2009,29(07):660-662+586.
[25] Zhao, C,Chen, X, Pan, F, Wang, J, Gao, S,Tu, T,Liu, C, Yao, J, Yao, A. Strain hardening of as-extruded Mg-xZn (x = 1, 2, 3 and4 wt%) alloys[J]. Mater. Sci. Technol. 2019, 35, 142–150.
[26] Yaghoobi, M.; Voyiadjis, G.Z.; Sundararaghavan, V. Crystal plasticity simulation of magnesium and its alloys: A review of recent advances. Crystals 2021, 11, 435.
[27] Chai, Y.; Jiang, B.; Song, J.; Wang, Q.; Gao, H.; Liu, B.; Huang, G.; Zhang, D.; Pan, F. Improvement of mechanical properties and reduction of yield asymmetry of extruded Mg-Sn-Zn alloy through Ca addition. J. Alloy. Compd. 2019, 782, 1076–1086.
[28] Miao, Y.; Wang, C.; Wang, M.; Deng, H.; Ma, P.; Li, Z. Enhanced mechanical properties and isotropy of Mg-2Al-0.8 Sn alloy through Ca addition. Materials 2021, 14, 7557.
[29] Wang H Y, Xia N, Bu R Y et al. Current Research and Future Prospect on Low-Alloyed High-Performance Wrought Magnesium Alloys [J]. Acta Metallurgica Sinica, 2021, 57(11): 1429-1437.
Published
2026-07-23
How to Cite
1.
Wang P, Niu J, Jia Z. EFFECT OF Ce AND La ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AN EXTRUDED Mg-4Sn ALLOY. MatTech [Internet]. 2026Jul.23 [cited 2026Oct.11];60(4):575–583. Available from: https://mater-tehnol.si/index.php/MatTech/article/view/1648
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