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| Effect of the Rolling Temperature and Accumulated Strain on the Microstructure and Mechanical Properties of AZ31 Alloy Sheet by Accumulative Roll-bonding |
| ZHAN Meiyan1, LI Chunming1, ZHANG Weiwen2 |
1.School of materials science and engineering, South China University of Technology, Guangzhou 510640
2.National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology, Guangzhou 510640 |
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Cite this article:
ZHAN Meiyan LI Chunming ZHANG Weiwen. Effect of the Rolling Temperature and Accumulated Strain on the Microstructure and Mechanical Properties of AZ31 Alloy Sheet by Accumulative Roll-bonding. Chin J Mater Res, 2011, 25(6): 637-644.
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Abstract Accumulative roll-bonding (ARB) was applied to AZ31 magnesium alloy at various rolling temperatures and cycles. The microstructures and mechanical properties of ARBed AZ31 alloys were investigated. The results show that the grain sizes decrease with decreasing of the rolling temperatures and increasing of ARB cycles. The grain refining is prominent until three cycles and the microstructures become more homogeneous with increasing of ARB cycles. The changes in tensile strength and ductility are more complicated as a result of the combined effects of the temperature and accumulated strain on grain size, texture and interface bonding. The best compromise between the strength and ductility is obtained after ARB at 350 for three cycles. The average ultimate tensile strength is 277 MPa and average tensile elongation is 20.6% which can be further improved after annealing.
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Received: 11 April 2011
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| Fund: Supported by National Nature Science Foundation of China No.50801027. |
| 1 W.J.Kim, H.W.Leea, S.J.Yooa, Y.B.Park, Texture and mechanical properties of ultrafine-grained Mg–3Al–1Zn alloy sheets prepared by high-ratio differential speed rolling, Materials Science and Engineering, A528, 874(2011)2 I.V.Alexandrov, R. Z. Valiev, Developing of SPD processing and enhanced properties in bulk nanostructured metals, Scripta Materialia, 44(8,9), 1605(2001)3 R.Z.Valiev, R.K.Islamgaliev, I.V.Alexandrov, Bulk nanostructured materials from severe plastic deformation, Progress in Materials Science, 45, 103(2000)4 Y.Yoshida, L.Cisar, S.Kamado, Y.Kojima, Effect of Microstructural Factors on Tensile Properties of ECAEprocessed AZ31 Magnesium Alloy, Materials Transactions, 44, 468(2003)5 W.J.Kim, H.T.Jeong, Grain size strengthening in equal channel angular pressing processed AZ31 Mg alloys with a constant texture, Materials Transactions, 46, 251(2005)6 S.R.Agnew, J.A.Horton, T.M.Lillo, D.W.Brown, Enhanced ductility in strongly textured magnesium produced by equal channel angular processing, Scripta Materialia, 50, 377 (2004)7 A.Yamashita, Z.Horita, T.G.Langdon, Improving the mechanical properties of magnesium and a magnesium alloy through severe plastic deformation, Materials Science and Engineering, A30, 142(2001)8 W.J.Kim, J.D.Park, J.Y.Wang, W.S.Yoon, Realization of low-temperature superplasticity in Mg–Al–Zn alloy sheets processed by differential speed rolling, Scripta Mater., 57, 755(2007)9 ZHAN Meiyan, LI Yuanyuan, CHEN Weiping, Status and expectation of research on accumulative roll-bonding, Chinese Journal of Nonferrous Metals, 17(6), 841–851(2007)(詹美燕, 李元元, 陈维平, 累积叠轧技术的研究现状与展望, 中国有色金属学报, 17(6), 841--851(2007))10 Q.F.Wang, X.P.Xiao, J.Hu, W.W.XU, X.Q.Zhao, S.J.Zhao, Anultrafine-grained AZ31 magnesium alloy sheet with enhanced superplasticity prepared by accumulative roll bonding, Journal of Iron and Steel Research, International, 14(5), 167(2007)11 M.T.Perez-prado, J.A.Del Valle, O.A.Ruano, Grain refinement of Mg–Al–Zn alloys via accumulative roll bonding, Scripta Mater., 51, 1093(2004)12 J.A.Del Valle, M.T.Perez-prado, O.A.Ruano, Accumulative roll bonding of a Mg-based AZ61 alloy, Materials Science and Engineering, A410-411, 353(2005)13 Y.Saito, H.Utsunomiya, N.Tsuji, T.Sakai, Novel ultrahigh straining process for bulk materials development of the accumulative roll-bonding(ARB) process, Acta Materialia, 47(2), 579(1999)14 S.X.Ding, C.P.Chang, P.W.Kao, Effects of Processing Parameters on the Grain Refinement of Magnesium Alloy by Equal-Channel Angular Extrusion, Metallurgical and Materials Transaction, 40A, 415(2009)15 S.M.Fatemi-Varzaneh, A.Zarei-Hanzaki, H.Beladi, Dynamic recrystallization in AZ31 magnesium alloy, Mater. Sci. Eng., A456, 52(2007)16 A.Galiyev, R.Kaibyshev, G.Gottstein, Correlation of plastic deformation and dynamic recrystallization in magnesium alloy ZK60, Acta Mater., 49(7), 1199(2001)17 M.R.Barnett, Recrystallization during and following hot working ofmagnesium alloy AZ31, Material Science Forum, 419/422, 503(2003)18 ZHAN Meiyan, LI Yuanyuan, CHEN Weiping, CHEN Wande, Evolution of microstructure and mechanical properties of AZ31 magnesium alloy rolled sheets during annealing, Heat Treatment of Metals, 32(7), 8(2007)(詹美燕, 李元元, 陈维平, 张卫文, 陈宛德, AZ31镁合金轧制板材在退火处理中的组织性能演变, 金属热处理, 32(7), 8(2007))19 S.H.Lee, Y.Saito, T.Sakai, H.Utsunomiya, Microstructures and mechanical properties of 6061 aluminum alloy processed by accumulative roll-bonding, Mater. Sci. Eng., A325, 228(2002)20 K.Xia, J.T.Wang, X.Wu, G.Chen, M.Gurvan, Equal channel angular pressing of magnesium alloy AZ31, Mater. Sci. Eng., A410-411, 324(2005)21 W.J.Kim, S.I.Hong, Y.S.Kim, S.H.Min, H.T.Jeong, J.D.Lee, Texture development and its effect on mechanical properties of an AZ61 Mg alloy fabricated by equal channel angular pressing, Acta Mater., 51, 3293(2003)22 A.Mwembela, E.B.Konopleva, H.J.McQueen, Microstructural development in Mg alloy AZ31 during hot working, Scripta Mater., 37, 1789(1997) |
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