Abstract
Mg-14Li-3Al-2Gd sheets were prepared by four-layer accumulative roll bonding (FARB). The grain size of Mg-14Li-3Al-2Gd alloy is refined from 252.8 to 5.3 μm after 4 cycles FARB. The refinement can be mainly attributed to the continuous dynamic recrystallization (CDRX). During FARB process, a large number of interlayer interfaces are introduced in the sheets, which have a significant impact on the CDRX. With the increase of FARB cycles, the interface spacing decreases rapidly. In the high cycles, some of layers are fully metallurgically bonded, which makes the corresponding interface disappear and the interface spacing becomes relatively increased. When the interface spacing is small, the dislocation first forms the lath-shaped substructure, then forms lath-shaped sub-grains with straight boundary. With the further deformation, necking and fracture occur in the lath-shaped sub-grain or other lath-shaped substructure, forming the equiaxed substructure with a small size. When the interface spacing is large, the substructure directly becomes equiaxed and randomly divides the deformed grains, forming the equiaxed sub-grains and grains.
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References
B.J. Wang, D.K. Xu, S.D. Wang et al., Influence of solution treatment on the corrosion fatigue behavior of an as-forged Mg-Zn-Y-Zr alloy, Int. J. Fatig., 2019, 120, p 46–55.
Y. Wang, S. Zhang, R.Z. Wu et al., Coarsening kinetics and strengthening mechanisms of core-shell nanoscale precipitates in Al-Li-Yb-Er-Sc-Zr alloy, J. Mater. Sci. Technol., 2021, 61, p 197–203.
F. Zhong, H.J. Wu, Y.L. Jiao et al., Effect of Y and Ce on the microstructure, mechanical properties and anisotropy of as-rolled Mg-8Li-1Al alloy, J. Mater. Sci. Technol., 2020, 39, p 124–134.
Q. Ji, Y.J. Ma, R.Z. Wu et al., Effect of Y and Ce addition on microstructures and mechanical properties of LZ91 alloys, J. Alloys Compd., 2019, 800, p 72–80.
S.Y. **, H.Y. Liu, R.Z. Wu et al., Combination effects of Yb addition and cryogenic-rolling on microstructure and mechanical properties of LA141 alloy, Mater. Sci. Eng. A., 2020, 788, p 139611–139616.
A. Etemad, G. Dini and S. Schwarz, Accumulative roll bonding (ARB)-processed high-manganese twinning induced plasticity (TWIP) steel with extraordinary strength and reasonable ductility, Mater. Sci. Eng. A, 2019, 742, p 27–32.
H.F. Wang, C.Y. Ban, N.N. Zhao et al., Enhanced strength and ductility of nano-grained titanium processed by two-step severe plastic deformation, Mater. Lett., 2020, 266, p 127485.
M.T. Pérez-Prado, D. Valle and O.A. Ruano, Grain refinement of Mg-Al-Zn alloys via accumulative roll bonding, Scr. Mater., 2004, 51, p 1093–1097.
X. Li, T.A. Samman and G. Gottstein, Microstructure development and texture evolution of ME20 sheets processed by accumulative roll bonding, Mater. Lett., 2011, 65, p 1907–1910.
M.Y. Zhan, W.W. Zhang and D.T. Zhang, Production of Mg-Al-Zn magnesium alloy sheets with ultrafine-grain microstructure by accumulative roll-bonding, Trans. Nonferrous Metals Soc. China, 2011, 21, p 991–997.
M.Y. Zhan, Y.Y. Li and W.P. Chen, Improving mechanical properties of Mg-Al-Zn alloy sheets through accumulative roll-bonding, Trans. Nonferrous Metals Soc. China, 2008, 18, p 309–314.
M. Karlík and P. Homolaa, Accumulative roll bonding: first experience with a twin-roll cast AA8006 alloy, J. Alloys Compd., 2004, 378, p 322–325.
L.G. Hou, T.Z. Wang, R.Z. Wu et al., Microstructure and mechanical properties of Mg-5Li-1Al sheets prepared by accumulative roll bonding, J. Mater. Sci. Technol., 2018, 2018(34), p 317–323.
J.H. Wang, L. Xu, R.Z. Wu et al., Enhanced electromagnetic interference shielding in a duplex-phase Mg-9Li-3Al-1Zn alloy processed by accumulative roll bonding, Acta Metall. Sin. (Engl. Lett.), 2020, 33, p 490–499.
H.J. Wu, T.Z. Wang, R.Z. Wu et al., Microstructure and mechanical properties of Mg-5Li-1Al sheets processed by cross accumulative roll bonding, J. Manuf. Process, 2018, 46, p 139–146.
Q. Ji, Y. Wang, R.Z. Wu et al., High specific strength Mg-Li-Zn-Er alloy processed by multi deformation processes, Mater. Charact., 2020, 160, p 110135–110142.
K.N. Fu, H.J. Wang, M. Qiu et al., Effects of cold rolling on microstructural evolution and mechanical properties of Mg-14Li-1Zn alloy, Adv. Eng. Mater., 2019, 21, p 1801344–1801350. https://doi.org/10.1002/adem.201801344
H.P. Zheng, R.Z. Wu, L.G. Hou et al., Microstructure and mechanical properties of Mg-14Li-3Al-2Gd Alloy processed by multilayer accumulative roll bonding, Adv. Eng. Mater., 2020, 22, p 1900774–1900784.
J.H. Zhang, S.J. Liu, R.Z. Wu et al., Recent developments in high-strength Mg-RE-based alloys: focusing on Mg-Gd and Mg-Y systems, J. Magnesium Alloys, 2018, 6, p 277–291.
Z. Wei, H.P. Zheng, R.Z. Wu et al., Interface behavior and tensile properties of Mg-14Li-3Al-2Gd sheets prepared by four-layer accumulative roll bonding, J. Manuf. Process., 2021, 61, p 254–260.
M. Karami and R. Mahmudi, Hot shear deformation constitutive analysis and processing map of extruded Mg-12Li-1Zn bcc alloy, Mater. Design, 2014, 53, p 534–539.
M.R. Barnett, Hot working microstructure map for magnesium AZ31, Mater. Sci. Forum, 2003, 426–432, p 515–520.
Y. Xu, X.X. Zhang, W. Li et al., Ultrafine lamellar structure AM60B magnesium alloy sheet prepared by high strain rate rolling, Mater. Sci. Eng. A, 2020, 781, p 139221–139229.
K. Qin, L.M. Yang and S.S. Hu, Mechanism of strain rate effect based on dislocation theory, Chin. Phys. Lett., 2009, 26, p 181–184.
Y. Zheng, H.G. Yan, J.H. Chen et al., Superplasticity behavior of ZK60 alloy sheet prepared by high strain rate rolling process, Trans. Nonferrous Met. Soc. China, 2014, 24, p 839–847.
F. Zhong, T.Z. Wang, R.Z. Wu et al., Microstructure, texture, and mechanical properties of alternate α/β Mg-Li composite sheets prepared by accumulative roll bonding, Adv. Eng. Mater., 2017, 19, p 1600817–1600824.
C.H. Ni, Q. Xu and F.C. Wang, Grain refinement process of pure iron target under hypervelocity impact, Trans. Nonferrous Metals Soc. China, 2011, 21, p 1029–1034.
M.A. Afifi, Y.C. Wang, X. Cheng et al., Strain rate dependence of compressive behavior in an Al-Zn-Mg alloy processed by ECAP, J. Alloys Compd., 2019, 791, p 1079–1087.
J. Wei, Q. Wang, L. Zhang et al., Microstructure refinement of Mg-Al-RE alloy by Gd addition, Mater. Lett., 2019, 246, p 125–128.
H. Niels, Hall-Petch relation and boundary strengthening, Scr. Mater., 2004, 51, p 801–806.
H.H. Yu, Y.C. **n, M.Y. Wang et al., Hall-Petch relationship in Mg alloys: a review, J. Mater. Sci. Technol., 2018, 34, p 248–256.
Z. Trojanova, Z. Drozd, S. Kudela et al., Strengthening in Mg-Li matrix composites, Compos. Sci. Technol., 2007, 67, p 1965–1973.
Acknowledgments
This paper was supported by Natural Science Foundation of China (51771060, 51871068, 51971071, 52011530025), Domain Foundation of Equipment Advance Research of 13th Five-year Plan (61409220118), National Key Research and Development Program of China (2021YFE0103200), Zhejiang Province Key Research and Development Program (2021C01086), the Open Foundation of Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education (HEU10202104 & HEU10202113).
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Qian, B., Zheng, H., Wu, R. et al. Grain Refinement Behavior of Accumulative Roll Bonding-Processed Mg-14Li-3Al-2Gd Alloy. J. of Materi Eng and Perform 31, 6617–6625 (2022). https://doi.org/10.1007/s11665-022-06757-w
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DOI: https://doi.org/10.1007/s11665-022-06757-w