Journal of Materials Engineering and Performance

, Volume 24, Issue 3, pp 1253–1261 | Cite as

Microstructure and Mechanical Properties of Mg-6Zn-2Sn-1Al Alloy Designed by Numerical Analysis with Extrusion Process

  • K. W. Lee
  • B. D. Lee
  • U. H. Baek
  • E. H. Kwon
  • J. W. Han
Article
First Online:
Received:
Revised:
  • 165 Downloads

Abstract

In the extrusion process, the temperature of the workpiece results in non-uniformity of dimensions, microstructure, and mechanical properties of the product. Although many researchers are expected to participate in the extrusion behavior of Mg alloys, no specific information is available yet to clarify their roles in extrusion process of Mg alloys because of a wide variety of compositions. In this study, a good understanding the role of die in the extrusion process is expected to contribute to the improvement of processing efficiency for Mg-6Zn-2Sn-1Al alloy. To design Mg-6Zn-2Sn-1Al alloy, the parameters, such as temperature and angle of the designed materials, were determined using the commercial software DEFORM 3D. With this simulation model, the real-time extrusion temperature and angle of the die were adjusted according to the simulation results. Using the optimal extrusion process predicted by finite element method analysis, the Mg-6Zn-2Sn-1Al alloy was manufactured. Also, the extruded Mg-6Zn-2Sn-1Al alloys were evaluated on the microstructure and mechanical properties.

Keywords

extrusion process FEM analysis mechanical properties Mg alloys microstructure 
This is a preview of subscription content, log in to check access.

Notes

Acknowledgment

This work was supported by INHA UNIVERSITY Research Grant.

References

  1. 1.
    B.D. Lee, U.H. Baek, and J.W. Han, Optimization of Gating System Design for Die Casting of Thin Magnesium Alloy Based Multi-Cavity LCD Housings, J. Mater. Eng. Perform., 2012, doi: 10.1007/s11665-011-0111-1 Google Scholar
  2. 2.
    J.W. Han, B.D. Lee, J.I. Park, B.D. You, and J.Y. Byun, Degassing Kinetics of Magnesium Alloy Melt, Rare Met., 2008, 27, p 93–96Google Scholar
  3. 3.
    B.D. Lee, U.H. Baek, K.S. Jang, H.T. Son, and J.W. Han, Effect of Double Aging on Microstructure and Mechanical Properties of Ag Added magnesium Alloys, Korean J. Met. Mater., 2011, 49, p 440–447Google Scholar
  4. 4.
    B.D. Lee, E.J. Kim, U.H. Baek, and J.W. Han, Precipitate Prediction Model of Mg-xAl(x = 3,6,9) Alloys, Met. Mater. Int., 2013, 19, p 135–145CrossRefGoogle Scholar
  5. 5.
    B.D. Lee, H.T. Son, and J.W. Han, Microstructure and Mechanical Properties on Aging Behavior of Zn Containing Mg-2Sn-0.4Mn Alloy, Intermetallics, 2013, 32, p 214–218CrossRefGoogle Scholar
  6. 6.
    B.D. Lee, E.J. Kim, E.H. Kwon, H.T. Son, and J.W. Han, Microstructure and Mechanical Properties of Hot-Extruded Mg3-Zn-2Sn-0.4Ag-xNd(x = 0, 1 and 3 mass%) Alloys, Mater. Trans., 2012, 53, p 1252–1257CrossRefGoogle Scholar
  7. 7.
    L. Sturkey and J.B. Clark, Mechanism of Age-Hardening in the Magnesium-Zinc Alloys, J. Inst. Met., 1959, 88, p 177–181Google Scholar
  8. 8.
    J.B. Clark, Transmission Electron Microscopy Study of Age Hardening in a Mg-5 wt% Zn alloy, Acta Metall. Mater., 1965, 13, p 1281–1289CrossRefGoogle Scholar
  9. 9.
    D.H. Ping, K. Hono, and J.F. Nie, Atom Probe Characterization of Plate-Like Precipitates in a Mg RE-Zn-Zr Casting Alloy, Scripta Mater., 2003, 48, p 1017–1022CrossRefGoogle Scholar
  10. 10.
    F. Penghuai, P. Liming, J. Haiyan, M. Lan, and Z. Chunquan, Chemical Composition Optimization of Gravity Cast Mg-yNd-xZn-Zr Alloy, Mater. Sci. Eng. A, 2008, 496, p 177–180CrossRefGoogle Scholar
  11. 11.
    H.K. Lim, S.W. Sohn, D.H. Kim, J.Y. Lee, W.T. Kim, and D.H. Kim, Effect of Addition of Sn on the Microstructure and Mechanical Properties of Mg-MM (misch-metal) Alloys, J. Alloy. Compd., 2007, doi: 10.1016/j.jallcom.2007.09.074 Google Scholar
  12. 12.
    K. Liua, L.L. Rokhlin, F.M. Elkin, D. Tang, and J. Meng, Effect of Ageing Treatment on the Microstructures and Mechanical Properties of the Extruded Mg-7Y-4Gd-1.5Zn-0.4Zr Alloy, Mater. Sci. Eng. A, 2010, 527, p 828–834CrossRefGoogle Scholar
  13. 13.
    C.-F. Yang, F.-L. Chen, W. Gierlotka, S.-W. Chen, K.-C. Hsieh, and L.-L. Huang, Thermodynamic Properties and Phase Equilibria of Sn-Bi-Zn Ternary Alloys, Mater. Chem. Phys., 2008, 112, p 94–103CrossRefGoogle Scholar
  14. 14.
    H.K. Lim, D.H. Kim, J.Y. Lee, W.T. Kim, and D.H. Kim, Effects of Alloying Elements on Microstructures and Mechanical Properties of Wrought Mg-MM-Sn alloy, J. Alloys Compd., 2008, doi: 10.1016/j.jallcom.2007.12.098 Google Scholar

Copyright information

© ASM International 2015

Authors and Affiliations

  • K. W. Lee
    • 1
  • B. D. Lee
    • 1
  • U. H. Baek
    • 1
  • E. H. Kwon
    • 1
  • J. W. Han
    • 1
  1. 1.Inha universityIncheomRepublic of Korea

Personalised recommendations