Journal of Materials Engineering and Performance

, Volume 26, Issue 4, pp 1673–1684 | Cite as

Hot Deformation and Processing Maps of Al-15%B4C Composites Containing Sc and Zr

  • Jian Qin
  • Zhan Zhang
  • X.-Grant Chen


Hot deformation behavior and processing maps of three Al-15%B4C composites denoted as the base composite (Al-15vol.%B4C), S40 (Al-15vol.%B4C-0.4wt.%Sc) and SZ40 (Al-15 vol.%B4C-0.4wt.%Sc-0.24wt.%Zr) were studied by uniaxial compression tests performed at various deformation temperatures and strain rates. The constitutive equations of the three composites were established to describe the effect of the temperature and strain rate on hot deformation behavior. Using the established constitutive equations, the predicted flow stresses on various deformation conditions agreed well with the experimental data. The peak flow stress of the composites increased with the addition of Sc and Zr, attributing to the synthetic effect of solute atoms and dynamic precipitation. The addition of Sc and Zr increased the activation energy for hot deformation of Al-B4C composites. The processing maps of the three composites were constructed to evaluate the hot workability of the composites. The safe domains with optimal deformation conditions were identified for all three composites. In the safe domains, dynamic recovery and dynamic recrystallization were involved as softening mechanisms. The addition of Sc and Zr limited the dynamic softening process, especially for dynamic recrystallization. The microstructure analysis revealed that the flow instability was attributed to the void formation, cracking and flow localization during hot deformation of the composites.


Al-B4C composites hot deformation processing map Sc and Zr microstructure 



The authors would like to acknowledge the financial support from the Natural Sciences and Engineering Research Council of Canada (NSERC) and from Rio Tinto Aluminum through the NSERC Industrial Research Chair in Metallurgy of Aluminum Transformation at the University of Québec at Chicoutimi. The authors would also like to thank Ms. E. Brideau for her assistance in the hot compression tests performed on the Gleeble 3800 thermomechanical simulator.


  1. 1.
    I.A. Ibrahim, F.A. Mohamed, and E.J. Lavernia, Particulate Reinforced Metal Matrix Composites: A Review, J. Mater. Sci., 1991, 26(5), p 1137–1156CrossRefGoogle Scholar
  2. 2.
    J.X. Deng and J.L. Sun, Microstructure and Mechanical Properties of Hot-pressed B4C/TiC/Mo Ceramic Composites, Ceram. Int., 2009, 35(2), p 771–778CrossRefGoogle Scholar
  3. 3.
    T.K. Roy, C. Subramanian, and A.K. Suri, Pressureless Sintering of Boron Carbide, Ceram. Int., 2006, 32(3), p 227–233CrossRefGoogle Scholar
  4. 4.
    C.B. Fuller, D.N. Seidman, and D.C. Dunand, Mechanical Properties of Al(Sc, Zr) Alloys at Ambient and Elevated Temperatures, Acta Mater., 2003, 51(16), p 4803–4814CrossRefGoogle Scholar
  5. 5.
    X. Huang, H. Zhang, Y. Han, W. Wu, and J. Chen, Hot Deformation Behavior of 2026 Aluminum Alloy During Compression at Elevated Temperature, Mater. Sci. Eng. A, 2010, 527(3), p 485–490CrossRefGoogle Scholar
  6. 6.
    H. Zhang, L. Li, D. Yuan, and D. Peng, Hot Deformation Behavior of the New Al-Mg-Si-Cu Aluminum Alloy During Compression at Elevated Temperatures, Mater. Charact., 2007, 58(2), p 168–173CrossRefGoogle Scholar
  7. 7.
    E. Cerri, E. Evangelista, A. Forcellese, and H. McQueen, Comparative Hot Workability of 7012 and 7075 Alloys After Different Pretreatments, Mater. Sci. Eng., A, 1995, 197(2), p 181–198CrossRefGoogle Scholar
  8. 8.
    Y. Li, Z. Liu, L. Lin, J. Peng, and A. Ning, Deformation Behavior of an Al-Cu-Mg-Mn-Zr Alloy During Hot Compression, J. Mater. Sci., 2011, 46(11), p 3708–3715CrossRefGoogle Scholar
  9. 9.
    M.E. Drits, L.S. Toropova, Y.G. Bykov, F.L. Gushchina, V.I. Elagin, and Y.A. Filatov, Metastable State Diagram of the Al-Sc System in the Range Rich in Aluminum, Russ. Metall., 1983, 1, p 150–153Google Scholar
  10. 10.
    T.G. Nieh, L.M. Hsiung, J. Wadsworth, and R. Kaibyshev, High Strain Rate Superplasticity in a Continuously Recrystallized Al-6%Mg-0.3%Sc Alloy, Acta Mater., 1998, 46(8), p 2789–2800CrossRefGoogle Scholar
  11. 11.
    C.B. Fuller, A.R. Krause, D.C. Dunand, and D.N. Seidman, Microstructure and Mechanical Properties of a 5754 Aluminum Alloy Modified by Sc and Zr Additions, Mater. Sci. Eng. A, 2002, 338(1–2), p 8–16CrossRefGoogle Scholar
  12. 12.
    I. Dutta, J. Sims, and D. Seigenthaler, An Analytical Study of Residual Stress Effects on Uniaxial Deformation of Whisker Reinforced Metal-matrix Composites, Acta Metall. Mater., 1993, 41(3), p 885–908CrossRefGoogle Scholar
  13. 13.
    C. Chen, S. Qin, S. Li, and J. Wen, Finite Element Analysis About Effects of Particle Morphology on Mechanical Response of Composites, Mater. Sci. Eng. A, 2000, 278(1), p 96–105CrossRefGoogle Scholar
  14. 14.
    C.J. Shi, W.M. Mao, and X.G. Chen, Evolution of Activation Energy During Hot Deformation of AA7150 Aluminum Alloy, Mater. Sci. Eng. A, 2013, 571, p 83–91CrossRefGoogle Scholar
  15. 15.
    W.F. Gale and T.C. Totemeier, Smithells Metals Reference Book, Butterworth-Heinemann, Oxford, 2003Google Scholar
  16. 16.
    S. Gangolu, A. Rao, N. Prabhu, V. Deshmukh, and B. Kashyap, Hot Workability and Flow Characteristics of Aluminum-5 wt.% B4C Composite, J. Mater. Eng. Perform., 2014, 23(4), p 1366–1373CrossRefGoogle Scholar
  17. 17.
    Y.V.R.K. Prasad, K.P. Rao, and S. Sasidhara, Hot Working Guide: A Compendium of Processing Maps, ASM international, Ohio, 1997Google Scholar
  18. 18.
    H. Li, H. Wang, M. Zeng, X. Liang, and H. Liu, Forming Behavior and Workability of 6061/B4CP Composite During Hot Deformation, Compos. Sci. Technol., 2011, 71(6), p 925–930CrossRefGoogle Scholar
  19. 19.
    J. Qin, Z. Zhang, and X. Chen, Effect of Hot Deformation on Microstructure and Mechanical Properties of Al-B4C Composite Containing Sc, Mater. Sci. Forum, 2014, 794–796, p 821–826CrossRefGoogle Scholar
  20. 20.
    J. Qin, Z. Zhang, and X. Chen, Mechanical Properties and Strengthening Mechanisms of Al-15 Pct B4C Composites with Sc and Zr at Elevated Temperatures, Metall. Mater. Trans. A, 2016, 47(9), p 4694–4708CrossRefGoogle Scholar
  21. 21.
    J. QIN, Z. Zhang, and X-Grant CHEN, Mechanical Properties and Thermal Stability of Hot-Rolled Al-15%B4C Composite Sheets Containing Sc and Zr at Elevated Temperature, J. Comp. Mater., 2016, online published. doi: 10.1177/0021998316674351
  22. 22.
    T. Srivatsan and J. Mattingly, Influence of Heat Treatment on the Tensile Properties and Fracture Behaviour of an Aluminium Alloy-Ceramic Particle Composite, J. Mater. Sci., 1993, 28(3), p 611–620CrossRefGoogle Scholar
  23. 23.
    T. Christman, A. Needleman, and S. Suresh, An Experimental and Numerical Study of Deformation in Metal-Ceramic Composites, Acta Metall., 1989, 37(11), p 3029–3050CrossRefGoogle Scholar
  24. 24.
    Z. Ma and S. Tjong, Creep Deformation Characteristics of Discontinuously Reinforced Aluminium-Matrix Composites, Compos. Sci. Technol., 2001, 61(5), p 771–786CrossRefGoogle Scholar
  25. 25.
    X. Wang, K. Wu, W. Huang, H. Zhang, M. Zheng, and D. Peng, Study on Fracture Behavior of Particulate Reinforced Magnesium Matrix Composite Using In Situ SEM, Compos. Sci. Technol., 2007, 67(11), p 2253–2260CrossRefGoogle Scholar
  26. 26.
    C. Sellars and W.M.G. Tegart, Relation Between Flow Stress and Structure in Hot Deformation, Mem. Etud. Sci. Rev. Met., 1966, 67(9), p 731–746Google Scholar
  27. 27.
    H. Lüthy, R.A. White, and O.D. Sherby, Grain Boundary Sliding and Deformation Mechanism Maps, Mater. Sci. Eng., 1979, 39(2), p 211–216CrossRefGoogle Scholar
  28. 28.
    H.J. McQueen, S. Spigarelli, M.E. Kassner, and E. Evangelista, Hot Deformation and Processing of Aluminum Alloys, CRC Press, New York, 2011Google Scholar
  29. 29.
    P. Wouters, B. Verlinden, H. McQueen, E. Aernoudt, L. Delaey, and S. Cauwenberg, Effect of Homogenization and Precipitation Treatments on the Hot Workability of an Aluminium Alloy AA2024, Mater. Sci. Eng. A, 1990, 123(2), p 239–245CrossRefGoogle Scholar
  30. 30.
    H.R. Ashtiani, M. Parsa, and H. Bisadi, Constitutive Equations for Elevated Temperature Flow Behavior of Commercial Purity Aluminum, Mater. Sci. Eng. A, 2012, 545, p 61–67CrossRefGoogle Scholar
  31. 31.
    Y. Prasad, H. Gegel, S. Doraivelu, J. Malas, J. Morgan, K. Lark, and D. Barker, Modeling of Dynamic Material Behavior in Hot Deformation: Forging of Ti-6242, Metall. Trans. A, 1984, 15(10), p 1883–1892CrossRefGoogle Scholar
  32. 32.
    P. Dadras and J. Thomas, Characterization and Modeling for Forging Deformation of Ti-6Ai-2Sn-4Zr-2Mo-0.1 Si, Metall. Trans. A, 1981, 12(11), p 1867–1876CrossRefGoogle Scholar
  33. 33.
    A.K. Kumar, Criteria for Predicting Metallurgical Instabilities in Processing Maps, Indian Institute of Science, Bangalore, 1987Google Scholar

Copyright information

© ASM International 2017

Authors and Affiliations

  1. 1.Department of Applied ScienceUniversity of Quebec at ChicoutimiSaguenayCanada

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