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Effect of Asymmetric Rolling on the Microstructure, Mechanical Properties and Texture Evolution of Mg–8Li–3Al–1Y Alloy

  • Xiao Zhou
  • Ruirui Liu
  • Qiang Liu
  • Haitao ZhouEmail author
Article
  • 43 Downloads

Abstract

Asymmetric rolling was applied to dual phase Mg–8Li–3Al–1Y alloy with different speed ratio and rolling reduction. With increasing reduction at the same speed ratio the population of β-Li grains decreased with a feature of fibered grains along the rolling direction. As for different speed ratio under the same reduction, β-Li grains kept equiaxed, but α-Mg phase was first elongated and fibered and then transited to equiaxed small grains. The enhanced yield strength and tensile strength were achieved with the increase of rolling reduction and speed ratio. In particular, when speed ratio reached to 1:1.3 under the same rolling reduction (30%), the optimal mechanical properties were obtained. As for texture evolution, we found the basal texture was obviously weakened and some new weak texture was formed after asymmetric rolling. Interestingly, it was noted that the texture on the side of slow roll is distinct from that on the side of the fast roll due to the different rolling speed.

Keywords

Mg–8Li–3Al–1Y alloy Microstructure Mechanical properties Texture Asymmetric rolling 

Notes

Acknowledgements

This work was financially supported by Hunan Provincial Natural Science Foundation of China (Grant No. 2018JJ2523).

References

  1. 1.
    M. Arul Kumar, I.J. Beyerlein, C.N. Tomé, A measure of plastic anisotropy for hexagonal close packed metals: application to alloying effects on the formability of Mg. J. Alloys Compd. 695, 1488–1497 (2017)CrossRefGoogle Scholar
  2. 2.
    A. Imandoust, C.D. Barrett, T. Al-Samman, K.A. Inal, H. El Kadiri, A review on the effect of rare-earth elements on texture evolution during processing of magnesium alloys. J. Mater. Sci. 52(1), 1–29 (2017)CrossRefGoogle Scholar
  3. 3.
    M. Karami, R. Mahmudi, The microstructural, textural, and mechanical properties of extruded and equal channel angularly pressed Mg–Li–Zn alloys. Metall. Mater. Trans. A 44(8), 3934–3946 (2013)CrossRefGoogle Scholar
  4. 4.
    B.L. Mordike, T. Ebert, Magnesium: properties—applications—potential. Mater. Sci. Eng. A 302(1), 37–45 (2001)CrossRefGoogle Scholar
  5. 5.
    Q.Z. Peng, H.T. Zhou, F.H. Zhong, H.B. Ding, X. Zhou, R.R. Liu, T. Xie, Y. Peng, Effects of homogenization treatment on the microstructure and mechanical properties of Mg–8Li–3Al–Y alloy. Mater. Des. 66, 566–574 (2015)CrossRefGoogle Scholar
  6. 6.
    X. Zhou, Q. Liu, R. Liu, H. Zhou, Characterization of microstructure and mechanical properties of Mg–8Li–3Al–1Y alloy subjected to different rolling processes. Met. Mater. Int. 24, 1–10 (2018)CrossRefGoogle Scholar
  7. 7.
    J. Koike, T. Kobayashi, T. Mukai, H. Watanabe, M. Suzuki, K. Maruyama, K. Higashi, The activity of non-basal slip systems and dynamic recovery at room temperature in fine-grained AZ31B magnesium alloys. Acta Mater. 51(7), 2055–2065 (2003)CrossRefGoogle Scholar
  8. 8.
    B.-C. Suh, M.-S. Shim, K.S. Shin, N.J. Kim, Current issues in magnesium sheet alloys: where do we go from here? Scr. Mater. 84–85, 1–6 (2014)CrossRefGoogle Scholar
  9. 9.
    M. Yoo, Slip, twinning, and fracture in hexagonal close-packed metals. Metall. Trans. A 12(3), 409–418 (1981)CrossRefGoogle Scholar
  10. 10.
    S.R. Agnew, P. Mehrotra, T.M. Lillo, G.M. Stoica, P.K. Liaw, Texture evolution of five wrought magnesium alloys during route A equal channel angular extrusion: experiments and simulations. Acta Mater. 53(11), 3135–3146 (2005)CrossRefGoogle Scholar
  11. 11.
    S. Yi, J. Bohlen, F. Heinemann, D. Letzig, Mechanical anisotropy and deep drawing behaviour of AZ31 and ZE10 magnesium alloy sheets. Acta Mater. 58(2), 592–605 (2010)CrossRefGoogle Scholar
  12. 12.
    Z.R. Zeng, M.Z. Bian, S.W. Xu, C.H.J. Davies, N. Birbilis, J.F. Nie, Texture evolution during cold rolling of dilute Mg alloys. Scr. Mater. 108, 6–10 (2015)CrossRefGoogle Scholar
  13. 13.
    Y. Lee, A. Dahle, D. St. John, Grain refinement of magnesium, in Essential Readings in Magnesium Technology, ed. by N. Mathaudhu, A.A. Luo, N.R. Neelameggham, E.A. Nyberg, W.H. Sillekens (Springer, Berlin, 2016), pp. 247–254Google Scholar
  14. 14.
    Y. Zhou, L. Bian, G. Chen, L. Wang, W. Liang, Influence of Ca addition on microstructural evolution and mechanical properties of near-eutectic Mg–Li alloys by copper-mold suction casting. J. Alloys Compd. 664, 85–91 (2016)CrossRefGoogle Scholar
  15. 15.
    R. Arrabal, B. Mingo, A. Pardo, E. Matykina, M. Mohedano, M. Merino, A. Rivas, A. Maroto, Role of alloyed Nd in the microstructure and atmospheric corrosion of as-cast magnesium alloy AZ91. Corros. Sci. 97, 38–48 (2015)CrossRefGoogle Scholar
  16. 16.
    F. Berge, L. Krüger, H. Ouaziz, C. Ullrich, Influence of temperature and strain rate on flow stress behavior of twin-roll cast, rolled and heat-treated AZ31 magnesium alloys. Trans. Nonferrous Met. Soc. China 25(1), 1–13 (2015)CrossRefGoogle Scholar
  17. 17.
    H.-T. Son, Y.-H. Kim, D.-W. Kim, J.-H. Kim, H.-S. Yu, Effects of Li addition on the microstructure and mechanical properties of Mg–3Zn–1Sn–0.4Mn based alloys. J. Alloys Compd. 564, 130–137 (2013)CrossRefGoogle Scholar
  18. 18.
    R. Li, F. Pan, B. Jiang, H. Dong, Q. Yang, Effect of Li addition on the mechanical behavior and texture of the as-extruded AZ31 magnesium alloy. Mater. Sci. Eng. A 562, 33–38 (2013)CrossRefGoogle Scholar
  19. 19.
    I. Nakatsugawa, S. Kamado, Y. Kojima, R. Ninomiya, K. Kubota, Corrosion of magnesium alloys containing rare earth elements. Corros. Rev. 16(1–2), 139–158 (1998)Google Scholar
  20. 20.
    R. Quimby, J. Mote, J. Dorn, Yield point phenomena in magnesium–lithium single crystals. J Am. Soc. Met. Trans. Q. 55, 149–157 (1962)Google Scholar
  21. 21.
    T.-C. Chang, J.-Y. Wang, C.-L. Chu, S. Lee, Mechanical properties and microstructures of various Mg–Li alloys. Mater. Lett. 60(27), 3272–3276 (2006)CrossRefGoogle Scholar
  22. 22.
    K. Kubota, M. Mabuchi, K. Higashi, Review processing and mechanical properties of fine-grained magnesium alloys. J. Mater. Sci. 34(10), 2255–2262 (1999)CrossRefGoogle Scholar
  23. 23.
    W. Tao, Z. Milin, N. Zhongyi, L. Bin, Influence of rare earth elements on microstructure and mechanical properties of Mg–Li alloys. J. Rare Earths 24(6), 797–800 (2006)CrossRefGoogle Scholar
  24. 24.
    R. Wu, Z. Qu, M. Zhang, Reviews on the influences of alloying elements on the microstructure and mechanical properties of Mg–Li base alloys. Rev. Adv. Mater. Sci 24(3), 35-43 (2010)Google Scholar
  25. 25.
    T. Liu, W. Zhang, S. Wu, C. Jiang, S. Li, Y. Xu, Mechanical properties of a two-phase alloy Mg–8% Li–1% Al processed by equal channel angular pressing. Mater. Sci. Eng. A 360(1–2), 345–349 (2003)CrossRefGoogle Scholar
  26. 26.
    M. Wang, H. Zhou, L. Wang, Effect of yttrium and cerium addition on microstructure and mechanical properties of AM50 magnesium alloy. J. Rare Earths 25(2), 233–237 (2007)CrossRefGoogle Scholar
  27. 27.
    R. Wu, Z. Qu, M. Zhang, Effects of the addition of Y in Mg–8Li–(1, 3) Al alloy. Mater. Sci. Eng. A 516(1–2), 96–99 (2009)CrossRefGoogle Scholar
  28. 28.
    H.W. Chang, D. Qiu, J.A. Taylor, M.A. Easton, M.X. Zhang, The role of Al2Y in grain refinement in Mg–Al–Y alloy system. J. Magnes. Alloys 1(2), 115–121 (2013)CrossRefGoogle Scholar
  29. 29.
    B. Pourbahari, H. Mirzadeh, M. Emamy, Toward unraveling the effects of intermetallic compounds on the microstructure and mechanical properties of Mg–Gd–Al–Zn magnesium alloys in the as-cast, homogenized, and extruded conditions. Mater. Sci. Eng. A 680, 39–46 (2017)CrossRefGoogle Scholar
  30. 30.
    B. Jiang, W. Liu, D. Qiu, M.-X. Zhang, F. Pan, Grain refinement of Ca addition in a twin-roll-cast Mg–3Al–1Zn alloy. Mater. Chem. Phys. 133(2), 611–616 (2012)CrossRefGoogle Scholar
  31. 31.
    B. Pourbahari, H. Mirzadeh, M. Emamy, The effects of grain refinement and rare earth intermetallics on mechanical properties of as-cast and wrought magnesium alloys. J. Mater. Eng. Perform. 27(3), 1327–1333 (2018)CrossRefGoogle Scholar
  32. 32.
    B. Pourbahari, H. Mirzadeh, M. Emamy, R. Roumina, Enhanced ductility of a fine-grained Mg–Gd–Al–Zn magnesium alloy by hot extrusion. Adv. Eng. Mater. 20(8), 1701171 (2018)CrossRefGoogle Scholar
  33. 33.
    K. Gusieva, C.H.J. Davies, J.R. Scully, N. Birbilis, Corrosion of magnesium alloys: the role of alloying. Int. Mater. Rev. 60(3), 169–194 (2015)CrossRefGoogle Scholar
  34. 34.
    J. Zhang, X. Niu, X. Qiu, K. Liu, C. Nan, D. Tang, J. Meng, Effect of yttrium-rich misch metal on the microstructures, mechanical properties and corrosion behavior of die cast AZ91 alloy. J. Alloys Compd. 471(1–2), 322–330 (2009)CrossRefGoogle Scholar
  35. 35.
    W. Kim, S. Hong, Y. Kim, S. Min, H. Jeong, J. Lee, Texture development and its effect on mechanical properties of an AZ61 Mg alloy fabricated by equal channel angular pressing. Acta Mater. 51(11), 3293–3307 (2003)CrossRefGoogle Scholar
  36. 36.
    W. Kim, J. Lee, W. Kim, H. Jeong, H. Jeong, Microstructure and mechanical properties of Mg–Al–Zn alloy sheets severely deformed by asymmetrical rolling. Scr. Mater. 56(4), 309–312 (2007)CrossRefGoogle Scholar
  37. 37.
    Y. Ji, J. Park, W. Kim, Finite element analysis of severe deformation in Mg–3Al–1Zn sheets through differential-speed rolling with a high speed ratio. Mater. Sci. Eng. A 454, 570–574 (2007)CrossRefGoogle Scholar
  38. 38.
    X. Huang, K. Suzuki, A. Watazu, I. Shigematsu, N. Saito, Compounds, Improvement of formability of Mg–Al–Zn alloy sheet at low temperatures using differential speed rolling. J. Alloys Compd. 470(1–2), 263–268 (2009)CrossRefGoogle Scholar
  39. 39.
    B. Beausir, S. Biswas, D.I. Kim, L.S. Tóth, S. Suwas, Analysis of microstructure and texture evolution in pure magnesium during symmetric and asymmetric rolling. Acta Mater. 57(17), 5061–5077 (2009)CrossRefGoogle Scholar
  40. 40.
    H. Watanabe, T. Mukai, K. Ishikawa, Differential speed rolling of an AZ31 magnesium alloy and the resulting mechanical properties. J. Mater. Sci. 39(4), 1477–1480 (2004)CrossRefGoogle Scholar
  41. 41.
    S. Ucuncuoglu, A. Ekerim, G.O. Secgin, O. Duygulu, Effect of asymmetric rolling process on the microstructure, mechanical properties and texture of AZ31 magnesium alloys sheets produced by twin roll casting technique. J. Magnes. Alloys 2(1), 92–98 (2014)CrossRefGoogle Scholar

Copyright information

© The Korean Institute of Metals and Materials 2019

Authors and Affiliations

  • Xiao Zhou
    • 1
    • 2
  • Ruirui Liu
    • 1
  • Qiang Liu
    • 1
  • Haitao Zhou
    • 1
    Email author
  1. 1.Key Laboratory of Nonferrous Metal Materials Science and Engineering of Ministry of Education, School of Materials Science and EngineeringCentral South UniversityChangshaChina
  2. 2.Department of Mining and Materials EngineeringMcGill UniversityMontrealCanada

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