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Evolution of fiber fragmentation in a short-fiber-reinforced metal-matrix model composite during tensile creep deformation—An acoustic emission study

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Abstract

The objective of this work is to obtain deeper insight into the damage evolution occurring during creep in short-fiber-reinforced metal-matrix composites. Uniaxial tensile creep experiments were performed on a model composite with a lead (Pb) matrix. This system was chosen because it allowed the performance of all creep tests at room temperature, thus facilitating the detection of fiber fragmentation by acoustic emission measurements. By this experimental approach, for the first time, quantitative information about the spatial and temporal evolution of microfractures in creeping metal-matrix composite of this kind was obtained. The acoustic emission results show that fiber fragmentation sets in early in the creep life and continues to operate up to macroscopic failure, thus affecting the creep behavior in all stages including the steady-state regime. During the whole creep process, the fracture sites are homogeneously distributed in the specimen volume. These findings largely support the micromechanical damage model proposed by Dlouhy and co-workers, in which the creep process in short-fiber-reinforced metal-matrix composites is described as an interplay of work hardening and recovery in the matrix as well as fragmentation of the fibers.

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References

  1. F. Zok, J.D. Embury, M.F. Ashby, and O. Richmond: Metal Matrix Composites—Processing, Microstructure and Properties, Proc. 9th Risø Int. Symp. on Materials Science, S.I. Anderson, H. Lilholt, and O.B. Perdersen, eds., Risø National Laboratory, Roskilde, Denmark, 1988, pp. 517–26.

    Google Scholar 

  2. T.L. Dragone and W.D. Nix: Metall. Trans. A, 1991, vol. 22A, pp. 1029–36.

    CAS  Google Scholar 

  3. A. Dlouhy, N. Merk, and G. Eggeler: Acta Metall. Mater., 1993, vol. 41, pp. 3245–56.

    Article  CAS  Google Scholar 

  4. G. Eggeler: Z. Metallkd., 1994, vol. 85, pp. 39–46.

    CAS  Google Scholar 

  5. A. Dlouhy, G. Eggeler, and N. Merk: Acta Metall. Mater., 1995, vol. 43, pp. 535–50.

    Article  CAS  Google Scholar 

  6. S.W. Schwenker, I. Roman, and D. Eylon: in Advanced Composites ’93, T. Chandra and A.K. Dhingra, eds., TMS, Warrendale, PA, 1993, pp. 1169–76.

    Google Scholar 

  7. S.W. Schwenker and D. Eylon: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 4193–204.

    Article  CAS  Google Scholar 

  8. A. Kelly and K.N. Street: Proc. R. Soc. London A, 1972, vol. 328, pp. 267–82.

    Article  CAS  Google Scholar 

  9. Anonymous: in Structure-Struers Metallographische Neuheiten, Struers A/S, Copenhagen, Denmark, 1985, vol. 11, pp. 3–4.

  10. M.R. Gorman: Proc. ASME Winter Annual Meeting, Chicago, IL, American Society of Mechanical Engineers, New York, NY, 1994, pp. 471–80.

    Google Scholar 

  11. T. Bidlingmaier and A. Wanner: Schriftenreihe des Ausschusses für Schallemissionsprüfverfahren, SEP5, Deutsche Gesellschaft für Zerstörungsfreie Prüfung e.V. (DGZfP), Berlin, 1997, pp. 13–22 (in German).

    Google Scholar 

  12. T. Bidlingmaier, A. Wanner, G. Dehm, and H. Clemens: Z. Metallkd., 1999, vol. 90, pp. 581–87.

    CAS  Google Scholar 

  13. A. Wanner, T. Bidlingmaier, and S. Ritter: J. Acoustic Emission, 1996, vol. 14 (3–4), pp. S47-S60.

    Google Scholar 

  14. T. Bidlingmaier, A. Wanner, and S. Ritter: in Review of Progress in Quantitative Nondestructive Evaluation, D.O. Thompson and D.E. Chimenti, eds., Plenum Press, New York, NY, 1998, vol. 17, pp. 517–24.

    Google Scholar 

  15. S. Ritter, T. Bidlingmaier, A. Wanner, and G. Busse: in Verbundwerkstoffe und Werkstoffverbunde, K. Friedrich, ed., DGM-Informationsges.-Verlag, Frankfurt/M., Germany, 1997, pp. 893–98.

    Google Scholar 

  16. J. Phillips, M. Staubach, B. Skrotzki, and G. Eggeler: Mater. Sci. Eng. A, 1997, vol. A234, pp. 401–05.

    Google Scholar 

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Author notes

  1. Svetlana P. Zwerschke (Postdoctoral Researcher)

    Present address: the Institut für Metallkunde, Universität Stuttgart, D-70569, Stuttgart, Germany

Authors and Affiliations

  1. the Institut für Metallkunde, Universität Stuttgart, D-70569, Stuttgart, Germany

    Alexander Wanner (Group Leader and Permanent Member of Academic Staff) & Eduard Arzt (Full Professor, Department Director)

  2. Max Planck Institute for Metals Research, D-70569, Stuttgart, Germany

    Eduard Arzt (Full Professor, Department Director)

Authors
  1. Svetlana P. Zwerschke
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  2. Alexander Wanner
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  3. Eduard Arzt
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Zwerschke, S.P., Wanner, A. & Arzt, E. Evolution of fiber fragmentation in a short-fiber-reinforced metal-matrix model composite during tensile creep deformation—An acoustic emission study. Metall Mater Trans A 33, 1549–1557 (2002). https://doi.org/10.1007/s11661-002-0077-6

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  • DOI: https://doi.org/10.1007/s11661-002-0077-6

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