Effect of Heat Treatment on the Long-Period Stacking Ordered Phase and Mechanical Properties of the Mg-10Y-2Zn-0.5Zr Alloy
Source abstract
Abstract
The microstructure evolution and mechanical properties of Mg-10Y-2Zn-0.5Zr under different heat-treatment conditions were studied. The experimental results show that the as-cast alloy is mainly composed of the Mg matrix, a W phase (Mg3Y2Zn3) and an 18R-LPSO (Mg12YZn) phase. The types of long-period stacking ordered (LPSO) phases were identified by transmission electron microscopy, and it was found that the types of LPSO phases change with heat treatment. After homogenization, the 18R-LPSO phase is transformed into the 14H-LPSO (Mg12YZn) phase, and the networked W phase changes into the granular W phase. After aging treatment, the number of 14H-LPSO phases increases greatly. The optimum heat treatment process was homogenization treatment at 500 °C for 8 h and aging treatment at 225 °C for 80 h. The tensile tests for materials treated under these conditions show that the ultimate tensile strength (UTS) is 286 MPa, yield strength (YS) is 194 MPa and elongation (EL) is 7.7%. Growth models of the 18R-LPSO and 14H-LPSO phases were constructed to further analyze the strengthening mechanism of the LPSO phase.
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Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · Aluminum Alloy Microstructure Properties
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References (45)
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1. W. Mohamed, S. Gollapudi, I. Charit, and K.L. Murty, Formability of a Wrought Mg Alloy Evaluated by Impression Testing, Mater. Sci. Eng. A, 2018, 712, p 140–145.10.1016/j.msea.2017.11.088 ↗
2. J.W. Lu, D.D. Yin, G.H. Huang, G.F. Quan, Y. Zeng, H. Zhou, and Q.D. Wang, Plastic Anisotropy and Deformation Behavior of Extruded Mg-Y Sheets at Elevated Temperatures, Mater. Sci. Eng. A, 2017, 700, p 598–608.10.1016/j.msea.2017.06.047 ↗
3. C.F. Fang, G.X. Liu, X.T. Liu, H. Hao, and X.G. Zhang, Significant Texture Weakening of Mg-8Gd-5Y-2Zn Alloy by Al Addition, Mater. Sci. Eng. A, 2017, 701, p 314–318.10.1016/j.msea.2017.06.085 ↗
4. T. Sakai, A. Belyakov, R. Kaibyshev, H. Miura, and J.J. Jonas, Dynamic and Post-Dynamic Recrystallization Under Hot, Cold and Severe Plastic Deformation Conditions, Prog. Mater. Sci., 2014, 60(1), p 130–207.10.1016/j.pmatsci.2013.09.002 ↗
5. S. Agnew, W. Whittington, A. Oppedal, H. El Kadiri, K.T. Matthew Shaeffer, J.B. Ramesh, Delorme, and B. Davis, Dynamic Behavior of a Rare-Earth-Containing Mg Alloy, WE43B-T5, Plate with Comparison to Conventional Alloy, AM30-F, JOM, 2014, 66(2), p 277–290. https://doi.org/10.1007/s11837-013-0830-x10.1007/s11837-013-0830-x ↗
6. M. Jahedi, B.A. Mcwilliams, P. Moy, and M. Knezevic, Deformation Twinning in Rolled WE43-T5 Rare Earth Magnesium Alloy: Influence on Strain Hardening and Texture Evolution, Acta Mater., 2017, 131, p 221–232.10.1016/j.actamat.2017.03.075 ↗
7. W.G. Feather, S. Ghorbanpour, D.J. Savage, M. Ardeljan, and M. Knezevic, Mechanical Response, Twinning, and Texture Evolution of WE43 Magnesium-Rare Earth Alloy as a Function of Strain Rate: Experiments and Multi-Level Crystal Plasticity Modeling, Int. J. Plasticity, 2019, 120, p 180–204.10.1016/j.ijplas.2019.04.019 ↗
8. A.R. Natarajan and A. Ven, A Unified Description of Ordering in HCP Mg-RE Alloys, Acta Mater., 2017, 124, p 620–632.10.1016/j.actamat.2016.10.057 ↗
9. F.L. Wang, J.J. Bhattacharyya, and S.R. Agnew, Effect of Precipitate Shape and Orientation on Orowan Strengthening of Non-basal Slip Modes in Hexagonal Crystals, Application to Magnesium Alloys, Mater. Sci. Eng. A, 2016, 666, p 114–122.10.1016/j.msea.2016.04.056 ↗
10. J. Wang, P. Song, X. Zhou, X. Huang, and F. Pan, Influence of the Morphology of Long-Period Stacking Ordered Phase on the Mechanical Properties of As-Extruded Mg–5Zn–5Y–06Zr Magnesium Alloy, Mater. Sci. Eng. A, 2012, 556, p 68–75.10.1016/j.msea.2012.06.059 ↗
11. H. Liu, Y.M. Zhu, N.C. Wilson, and J.F. Nie, On the Structure and Role of βF′ in β1 Precipitation in Mg-Nd Alloys, Acta Mater., 2017, 133, p 408–426.10.1016/j.actamat.2017.03.065 ↗
12. Y. Ali, D. Qiu, B. Jiang, F. Pan, and M.X. Zhang, Current Research Progress in Grain Refinement of Cast Magnesium Alloys: A Review Article, J. Alloy Compd., 2015, 619, p 639–651.10.1016/j.jallcom.2014.09.061 ↗
13. N. Stanford, The Effect of Rare Earth Elements on the Behaviour of Magnesium-Based Alloys: Part 2–Recrystallisation and Texture Development, Mater. Sci. Eng. A, 2013, 565, p 469–475.10.1016/j.msea.2012.10.084 ↗
14. T. Itoi, T. Seimiya, Y. Kawamura, and M. Hirohashi, Long Period Stacking Structures Observed in Mg97Zn1Y2 Alloy, Scripta Mater., 2004, 51(2), p 107–111.10.1016/j.scriptamat.2004.04.003 ↗
15. X.H. Shao, Q.Q. Jin, Y.T. Zhou, H.J. Yang, and X.L. Ma, Basal Shearing of Twinned Stacking Faults and its Effect on Mechanical Properties in an Mg-Zn-Y Alloy with LPSO Phase, Mater. Sci. Eng. A, 2020, 779, p 139109.10.1016/j.msea.2020.139109 ↗
16. X. Zhou, W. Xiong, G. Zeng, H. Xiao, J. Zhang, X. Lu, and X. Chen, Combined Effects of LPSO Orientation and α-Mg Texture on Tensile Anisotropy of an Extruded Mg-Gd-Y-Zn-Zr Alloy, Mater. Sci. Eng. A, 2021, 805, p 140596.10.1016/j.msea.2020.140596 ↗
17. T. Chen, Z. Chen, J. Shao, Y. Han, and C. Liu, Fragmentation of Long Period Stacking Ordered (LPSO) Phase and its Impact on Microstructure Evolution of a Mg-Y-Zn Alloy During Multi-Directional Forging, Mater. Sci. Eng. A, 2020, 793, p 139898.10.1016/j.msea.2020.139898 ↗
18. H. Liu, H. Huang, C. Wang, J. Sun, J. Bai, F. Xue, A. Ma, and X.B. Chen, Recent Advances in LPSO-Containing Wrought Magnesium Alloys: Relationships Between Processing, Microstructure, and Mechanical Properties, JOM, 2019, 71, p 3314–3327.10.1007/s11837-019-03610-9 ↗
19. H. Liu, H. Huang, J.P. Sun, C. Wang, J. Bai, A.B. Ma, and X.H. Chen, Microstructure and Mechanical Properties of Mg–RE–TM cast Alloys Containing Long Period Stacking Ordered Phases: A Review, Acta Metall. Sin-engl, 2019, 32, p 269–285.10.1007/s40195-018-0862-x ↗
20. C. Xu, M.Y. Zheng, S.W. Xu, K. Wu, E.D. Kamado, G.J. Wang, and X.Y. Lv, Ultra High-Strength Mg-Gd-Y-Zn-Zr Alloy Sheets Processed by Large-Strain Hot Rolling and Ageing, Mater. Sci. Eng. A, 2012, 547, p 93–98.10.1016/j.msea.2012.03.087 ↗
21. M. Matsuda, S. Ii, Y. Kawamura, Y. Ikuhara, and M. Nishida, Variation of Long-Period Stacking Order Structures in Rapidly Solidified Mg97Zn1Y2 Alloy, Mater. Sci. Eng. A, 2005, 393, p 269–274.10.1016/j.msea.2004.10.040 ↗
22. Y. Chino, M. Mabuchi, S. Hagiwara, H. Iwasaki, A. Yamamoto, and H. Tsubakino, Novel Equilibrium Two Phase Mg Alloy with the Long-Period Ordered Structure, Scripta Mater., 2004, 51(7), p 711–714.10.1016/j.scriptamat.2004.06.007 ↗
23. M. Yamasaki, T. Anan, S. Yoshimoto, and Y. Kawamura, Mechanical Properties of Warm-Extruded Mg-Zn-Gd Alloy with Coherent 14H Long Periodic Stacking Ordered Structure Precipitate, Scripta Mater., 2005, 53(7), p 799–803.10.1016/j.scriptamat.2005.06.006 ↗
24. W. Liu, J. Zhang, C. Xu, X. Zong, J. Hao, Y. Li, and Z. Zhang, High-Performance Extruded Mg89Y4Zn2Li5 Alloy with Deformed LPSO Structures Plus Fine Dynamical Recrystallized Grains, Mater. Design, 2016, 110, p 1–9.10.1016/j.matdes.2016.07.111 ↗
25. T. Honma, T. Ohkubo, S. Kamado, and K. Hono, Effect of Zn Additions on the Age-Hardening of Mg-2.0Gd-1.2Y-0.2Zr Alloys, Acta Mater., 2007, 55(12), p 4137–4150.10.1016/j.actamat.2007.02.036 ↗
26. M. Suzuki, T. Kimura, J. Koike, and K. Maruyama, Effects of Zinc on Creep Strength and Deformation Substructures in Mg-Y Alloy, Mater. Sci. Eng. A, 2004, 387, p 706–709.10.1016/j.msea.2003.12.071 ↗
27. R.P. Lu, J.F. Wang, Y.L. Chen, D.Z. Qin, and W.X. Yang, Effects of Heat Treatment on the Morphology of Long-period Stacking Ordered Phase, the Corresponding Damping Capacities and Mechanical Properties of Mg-Zn-Y Alloys, J. Alloy Compd., 2015, 639, p 541–546.10.1016/j.jallcom.2015.03.208 ↗
28. D. Egusa and E. Abe, The Structure of Long Period Stacking/order Mg-Zn-RE Phases with Extended Non-stoichiometry Ranges, Acta Mater., 2012, 60(1), p 166–178.10.1016/j.actamat.2011.09.030 ↗
29. E. Abe, A. Ono, T. Itoi, M. Yamasaki, and Y. Kawamura, Polytypes of Long-Period Stacking Structures Synchronized with Chemical Order in a Dilute Mg-Zn-Y Alloy, Phil. Mag. Lett., 2011, 91(10), p 690–696.10.1080/09500839.2011.609149 ↗
30. Y.M. Zhu, A.J. Morton, M. Weyland, and J.F. Nie, Characterization of Planar Features in Mg-Y-Zn Alloys, Acta Mater., 2010, 58(2), p 464–475.10.1016/j.actamat.2009.09.025 ↗
31. M. Yamasaki, M. Sasaki, M. Nishijima, K. Hiraga, and Y. Kawamura, Formation of 14H Long Period Stacking Ordered Structure and Profuse Stacking Faults in Mg-Zn-Gd Alloys during Isothermal Aging at High Temperature, Acta Mater., 2007, 55(20), p 6798–6805.10.1016/j.actamat.2007.08.033 ↗
32. J. Gröbner, A. Kozlov, X.Y. Fang, J. Geng, J.F. Nie, and R. Schmid-Fetzer, Phase Equilibria and Transformations in Ternary Mg-rich Mg-Y-Zn Alloy, Acta Mater., 2012, 60(17), p 5948–5962.10.1016/j.actamat.2012.05.035 ↗
33. J.E. Saal and C. Wolverton, Thermodynamic Stability of Mg-Y-Zn Long-period Stacking Ordered Structures, Scripta Mater., 2012, 67(10), p 798–801.10.1016/j.scriptamat.2012.07.013 ↗
34. J.K. Kim, S. Sandlöbes, and D. Raabe, On the Room Temperature Deformation Mechanisms of a Mg-Y-Zn Alloy with Long-Period-Stacking-Ordered Structures, Acta Mater., 2015, 82, p 414–423.10.1016/j.actamat.2014.09.036 ↗
35. J.F. Nie, Crystallography and Migration Mechanisms of Planar Interphase Boundaries, Acta Mater., 2004, 52(3), p 795–807.10.1016/j.actamat.2003.10.019 ↗
36. I.H. Aaronson, T. Furuhara, G.M. Hall, P.J. Hirth, J.F. Nie, G.R. Purdy, and W.T. Reynold Jr., On the Mechanism of Formation of Diffusional Plate-shaped Transformation Products, Acta Mate., 2006, 54(5), p 1227–1232.10.1016/j.actamat.2005.10.049 ↗
37. J.M. Howe, R.C. Pond, and J.P. Hirth, The Role of Disconnections in Phase Transformations, Prog. Mater. Sci., 2009, 54(6), p 792–838.10.1016/j.pmatsci.2009.04.001 ↗
38. Y.M. Zhu, A.J. Morton, and J.F. Nie, Growth and Transformation Mechanisms of 18R and 14H in Mg-Y-Zn Alloys, Acta Mater., 2012, 60(19), p 6562–6572.10.1016/j.actamat.2012.08.022 ↗
39. K. Hagihara, N. Yokotani, and Y. Umakoshi, Plastic Deformation Behavior of Mg 12YZn with 18R Long-period Stacking Ordered Structure, Intermetallics, 2010, 18(2), p 267–276.10.1016/j.intermet.2009.07.014 ↗
40. Y. Zhang, X. Zeng, L. Liu, L. Chen, H. Zhou, Q. Li, and Y. Zhu, Effects of Yttrium on Microstructure and Mechanical Properties of Hot-Extruded Mg-Zn-Y-Zr Alloys, Mater. Sci. Eng. A, 2004, 373, p 320–327.10.1016/j.msea.2004.02.007 ↗
41. H. Liu, J. Bai, K. Yan, J. Yan, A. Ma, and J. Jiang, Comparative Studies on Evolution Behaviors of 14H LPSO Precipitates in As-cast and As-extruded Mg-Y-Zn Alloys during Annealing at 773K, Mater. Design, 2016, 93, p 9–18.10.1016/j.matdes.2015.12.151 ↗
42. K. Hagihara, Y. Sugino, Y. Fukusumi, Y. Umakoshi, and T. Nakano, Plastic Deformation Behavior of Mg12ZnY LPSO-Phase with 14H-Typed Structure, Mater. Trans., 2011, 52(6), p 1096–1103.10.2320/matertrans.MC201007 ↗
43. L. Hong, R. Wang, and X. Zhang, Effects of Nd on Microstructure and Mechanical Properties of As-cast Mg-12Gd-2Zn-xNd-0.4Zr Alloys with Stacking Faults, Int. J. Met. Mater., 2022, 29(8), p 1570–1577.10.1007/s12613-021-2264-8 ↗
44. X. Zhou, Y. Yao, J. Zhang, X. Lu, and Z. Wu, Improved Workability for Mg-Y-Zn alloys via Increased Volume Fraction of Block LPSO Phases, Mater. Sci. Eng. A, 2020, 794, p 139934.10.1016/j.msea.2020.139934 ↗
45. F.S. Pan, S.Q. Luo, A.T. Tang, J. Peng, and Y. Lu, Influence of Stacking Fault Energy on Formation of Long Period Stacking Ordered Structures in Mg-Zn-Y-Zr Alloys, Prog. Nat. Sci., 2011, 21(6), p 485–490.10.1016/S1002-0071(12)60087-2 ↗