Microstructural Characterization of Deformation and Precipitation in (W, Ti)C

  • S. L. Shinde
  • V. Jayaram
  • R. Sinclair


Transmission electron microscopy has been used to study the deformation produced by Vickers micro-indentations in rock-salt structure carbides with approximate compositions (W, Ti)C0.8 and (W, Ti)C0.6. In the more severely deformed regions, the dislocation density increases from the annealed value of 108 cm−2 to around 1013 cm−2. The defects were found to lie on all the three major low index planes, {111}, {110} and {100} with Burgers’ vectors that are consistent with a/2 <110>. The operation of these slip planes is consistent with observations of hardness anisotropy in other transition metal carbides, particularly TiC. Indentations at high loads have revealed interactions between slip bands. These sometimes result in the formation of wedge shaped cracks and in the abrupt displacement of slip traces at the intersection of different bands. The latter may reflect the sequential activation of different slip planes during the loading process.

Preliminary precipitation studies on (W, Ti)C0.6, are reported, revealing a crystallographic relationship between the bcc (W, Ti) phase and the fcc carbide matrix.


Slip Plane Slip Band Slip Trace Vickers Indentation Knoop Hardness 
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  1. 1.
    H. E. Exner, “Physical and Chemical Nature of Cemented Carbides,” International Metals Reviews, No. 4, 149 (1979).Google Scholar
  2. 2.
    W.S. Williams, J. Appl. Phys. 35:1329 (1964).CrossRefGoogle Scholar
  3. 3.
    G.E. Hollox and R.E. Smallman, J. Appl. Phys. 37:818 (1966).CrossRefGoogle Scholar
  4. 4.
    G.E. Hollox, Mater. Sci. Eng. 3:121 (1968–69).CrossRefGoogle Scholar
  5. 5.
    D.J. Rowcliffe and G.E. Hollox, J. Mater. Sci. 6:1261 (1971).CrossRefGoogle Scholar
  6. 6.
    D.J. Rowcliffe, and W.J. Warren, J. Mater. Sci. 5:345 (1970).CrossRefGoogle Scholar
  7. 7.
    D.J. Rowcliffe, and C.E. Hollox, J. Mater. Sci. 6:1270 (1971).CrossRefGoogle Scholar
  8. 8.
    R.H.J. Hannink, D.C. Kohlstedt, and M. Murray, Proc. Roy Soc. A326:409 (1972).Google Scholar
  9. 9.
    G. Morgan, and M.H. Lewis, J. Mater. Sci. 9:349 (1974).CrossRefGoogle Scholar
  10. 10.
    D.L. Kohlstedt, J. Mater. Sci. 8:8 777 (1973).CrossRefGoogle Scholar
  11. 11.
    E. Breval, Ph.D. Thesis, Technical University of Denmark, (1980).Google Scholar
  12. 12.
    E. Rudy, J. of the L. Common Metals 33:245 (1973).CrossRefGoogle Scholar
  13. 13.
    S. L. Shinde, Proceedings EMSA, 1980.Google Scholar
  14. 14.
    D. J. Rowcliffe, these proceedings.Google Scholar
  15. 15.
    R.J. Stokes, T.L. Johnson, and C.H. Li, Phil. Mag. 4:920 (1959).CrossRefGoogle Scholar
  16. 16.
    C.A. Brookes, J.B. O’Neill, and B.W. Redfern, Proc. Roy. Soc. A322:73 (1971).Google Scholar
  17. 17.
    D.W. Lee and J.S. Haggerty, J. Amer. Ceram. Soc.Soc 52:641 (1969).Google Scholar
  18. 18.
    J.J. Gilman, Acta Met. 7:608 (1959).CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • S. L. Shinde
    • 1
  • V. Jayaram
    • 1
  • R. Sinclair
    • 1
  1. 1.Department of Materials Science and EngineeringStanford UniversityStanfordUSA

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