Revealing the nucleation event of Mg–Al alloy induced by Fe impurity

Hengbin Liao; Liling Mo; Xiong Zhou; Zhizhong Yuan; Jun Du

doi:10.1007/s12613-021-2406-z

Volume 29 Issue 7

Jul. 2022

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2022 > 29(7): 1317-1321

Hengbin Liao, Liling Mo, Xiong Zhou, Zhizhong Yuan, and Jun Du, Revealing the nucleation event of Mg–Al alloy induced by Fe impurity, Int. J. Miner. Metall. Mater., 29(2022), No. 7, pp. 1317-1321. https://doi.org/10.1007/s12613-021-2406-z

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Hengbin Liao, Liling Mo, Xiong Zhou, Zhizhong Yuan, and Jun Du, Revealing the nucleation event of Mg–Al alloy induced by Fe impurity, Int. J. Miner. Metall. Mater., 29(2022), No. 7, pp. 1317-1321. https://doi.org/10.1007/s12613-021-2406-z

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Research Article

Revealing the nucleation event of Mg–Al alloy induced by Fe impurity

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Corresponding author:
Jun Du E-mail: tandujun@sina.com
Received: 24 September 2021; Revised: 24 December 2021; Accepted: 27 December 2021; Available online: 28 December 2021

Abstract

Abstract

This study revealed the nucleation event and grain refinement mechanism of Mg–Al alloy induced by Fe impurity. The following orientation relationship was observed between Al–Fe particle and α-Mg matrix in the Mg–3Al alloy containing Fe impurity using a focused ion beam aided transmission electron microscope technique: $ \text{(}\bar{\text{1}}\text{011)[01}\bar{\text{1}}\text{1}{\text{]}}_{\text{Mg}}\text{//(01}\bar{\text{1}}\text{)[011}{\text{]}}_{\text{Al}_2\text{Fe}} $. Mg–3Al alloy was inoculated by adding 0.02wt% Fe to verify the nucleating potency of the Al₂Fe phase for α-Mg grain. The results indicated that Mg–3Al alloy was effectively refined with an average grain size declining from 1135 to 540 μm. Among the potential Al–Fe phases of Mg–3Al–0.02Fe alloy, only the precipitation of the Al₂Fe phase occurs earlier than that of α-Mg grain, and the Al₂Fe phase is stable in the nucleation stage of α-Mg grain. Therefore, the Al₂Fe particle is the only available nucleating site for Mg–Al alloy with Fe impurity. The heterogeneous nucleation event of α-Mg grain on the Al₂Fe particle is responsible for the grain refinement of Mg–3Al alloy inoculated by Fe.
- grain refinement;
- Mg–Al alloy;
- Al–Fe particle;
- heterogeneous nucleation

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[1]	Z. Zhang, J.H. Zhang, J. Wang, et al., Toward the development of Mg alloys with simultaneously improved strength and ductility by refining grain size via the deformation process, Int. J. Miner. Metall. Mater., 28(2021), No. 1, p. 30. doi: 10.1007/s12613-020-2190-1
[2]	P. Peng, A.T. Tang, J. She, et al., Significant improvement in yield stress of Mg–Gd–Mn alloy by forming bimodal grain structure, Mater. Sci. Eng. A, 803(2021), art. No. 140569. doi: 10.1016/j.msea.2020.140569
[3]	J.L. Su, J. Teng, Z.L. Xu, and Y. Li, Biodegradable magnesium-matrix composites: A review, Int. J. Miner. Metall. Mater., 27(2020), No. 6, p. 724. doi: 10.1007/s12613-020-1987-2
[4]	G.Z. Kang and H. Li, Review on cyclic plasticity of magnesium alloys: Experiments and constitutive models, Int. J. Miner. Metall. Mater., 28(2021), No. 4, p. 567. doi: 10.1007/s12613-020-2216-8
[5]	J. Du, Z.J. Yao, S. Han, and W.F. Li, Discussion on grain refining mechanism of AM30 alloy inoculated by MgCO₃, J. Magnesium Alloys, 5(2017), No. 2, p. 181. doi: 10.1016/j.jma.2017.04.001
[6]	Z. Fan, F. Gao, Y. Wang, H. Men, and L. Zhou, Effect of solutes on grain refinement, Prog. Mater. Sci., 123(2022), art. No. 100809. doi: 10.1016/j.pmatsci.2021.100809
[7]	D. Vinotha, K. Raghukandan, U.T.S. Pillai, and B.C. Pai, Grain refining mechanisms in magnesium alloys—An overview, Trans. Indian Inst. Met., 62(2009), No. 6, p. 521. doi: 10.1007/s12666-009-0088-8
[8]	D. Qiu and M.X. Zhang, The nucleation crystallography and wettability of Mg grains on active Al₂Y inoculants in an Mg–10wt%Y Alloy, J. Alloys Compd., 586(2014), p. 39. doi: 10.1016/j.jallcom.2013.10.042
[9]	C.B. Li, S.Q. Yang, J. Du, H.B. Liao, and G. Luo, Synergistic refining mechanism of Mg–3%Al alloy refining by carbon inoculation combining with Ca addition, J. Magnesium Alloys, 8(2020), No. 4, p. 1090. doi: 10.1016/j.jma.2019.12.007
[10]	H.B. Liao, M.Y. Zhan, C.B. Li, Z.Q. Ma, and J. Du, Grain refinement of Mg–Al alloys inoculated by MgAl₂O₄ powder, J. Magnesium Alloys, 9(2021), No. 4, p. 1211. doi: 10.1016/j.jma.2020.04.010
[11]	T. Chen, Y. Yuan, T.T. Liu, et al., Effect of Mn addition on melt purification and Fe tolerance in Mg alloys, JOM, 73(2021), No. 3, p. 892. doi: 10.1007/s11837-020-04550-5
[12]	R. Ambat, A.J. Davenport, G.M. Scamans, and A. Afseth, Effect of iron-containing intermetallic particles on the corrosion behaviour of aluminium, Corros. Sci., 48(2006), No. 11, p. 3455. doi: 10.1016/j.corsci.2006.01.005
[13]	C. Zhang, L. Wu, G.S. Huang, et al., Effects of Fe concentration on microstructure and corrosion of Mg–6Al–1Zn–xFe alloys for fracturing balls applications, J. Mater. Sci. Technol., 35(2019), No. 9, p. 2086. doi: 10.1016/j.jmst.2019.04.012
[14]	K. Ganjehfard, R. Taghiabadi, M.T. Noghani, and M.H. Ghoncheh, Tensile properties and hot tearing susceptibility of cast Al–Cu alloys containing excess Fe and Si, Int. J. Miner. Metall. Mater., 28(2021), No. 4, p. 718. doi: 10.1007/s12613-020-2039-7
[15]	P. Cao, M. Qian, and D.H. StJohn, Effect of iron on grain refinement of high-purity Mg–Al alloys, Scripta Mater., 51(2004), No. 2, p. 125. doi: 10.1016/j.scriptamat.2004.03.039
[16]	J. Du, M.H. Wang, and W.F. Li, Effects of Fe addition and addition sequence on carbon inoculation of Mg–3%Al alloy, J. Alloys Compd., 502(2010), No. 1, p. 74. doi: 10.1016/j.jallcom.2010.04.156
[17]	D.H. StJohn, M. Qian, M.A. Easton, P. Cao, and Z. Hildebrand, Grain refinement of magnesium alloys, Metall. Mater. Trans. A, 36(2005), No. 7, p. 1669. doi: 10.1007/s11661-005-0030-6
[18]	Y.C. Pan, X.F. Liu, and H. Yang, Role of C and Fe in grain refinement of an AZ63B magnesium alloy by Al–C master alloy, J. Mater. Sci. Technol., 21(2005), No. 6, p. 822.
[19]	H.B. Liao, L.L. Mo, X. Zhou, B. Zhao, and J. Du, Grain refinement and improvement of mechanical properties of AZ31 magnesium alloy inoculated by in situ oxidation process, J. Mater. Res. Technol., 12(2021), p. 807. doi: 10.1016/j.jmrt.2021.03.035
[20]	M.X. Zhang, P.M. Kelly, M. Qian, and J.A. Taylor, Crystallography of grain refinement in Mg–Al based alloys, Acta Mater., 53(2005), No. 11, p. 3261. doi: 10.1016/j.actamat.2005.03.030
[21]	M.X. Zhang and P.M. Kelly, Edge-to-edge matching model for predicting orientation relationships and habit planes–The improvements, Scripta Mater., 52(2005), No. 10, p. 963. doi: 10.1016/j.scriptamat.2005.01.040
[22]	Y.C. Lee, A.K. Dahle, and D.H. StJohn, The role of solute in grain refinement of magnesium, Metall. Mater. Trans. A, 31(2000), No. 11, p. 2895. doi: 10.1007/BF02830349
[23]	D.H. StJohn, P. Cao, M. Qian, and M.A. Easton, A brief history of the development of grain refinement technology for cast magnesium alloys, [in] Magnesium Technology 2013, Springer, Cham, 2013, p. 3.