Metallurgical Transactions A

, Volume 7, Issue 1, pp 41–48 | Cite as

The effect of structure on the deformation of as-quenched and tempered martensite in an Fe-0.2 pct C alloy

  • Thomas Swarr
  • George Krauss
Mechanical Behavior


As-quenched and tempered martensite in an Fe-0.2 pct C alloy were subjected to tensile testing and structural characterization by light and transmission electron microscopy. The light temper, 400°C-l min, did not change packet morphology, but did reduce dislocation density, coarsen lath size and cause the precipitation of carbides of a variety of sizes. The yield strength of the as-quenched martensite was strongly dependent upon packet size according to a Hall-Petch relationship, but tempering significantly diminished the packet size dependency, a result attributed to packet boundary carbide precipitation and the attendant elimination of carbon segregation present in the as-quenched martensite because of autotempering. Examination of thin foils from strained tensile specimens showed that a well-defined cell structure developed in the as-quenched martensite, but that the random distribution of jogged dislocations and carbide particles produced by tempering persisted on deformation of the tempered specimens.


Martensite Metallurgical Transaction Packet Size Lath Martensite Lath Boundary 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    G. R. Speich and H. Warlimont:J Iron Steel Inst., 1968, vol. 206, p. 385.Google Scholar
  2. 2.
    G. R. Speich:Trans. TMS-AIME, 1969, vol. 245, p. 2553.Google Scholar
  3. 3.
    R. A. Grange:Trans. ASM, 1966, vol. 59, p. 26.Google Scholar
  4. 4.
    L. F. Porter and D. S. Dabkowski:Ultrafine Grain Metals, p. 133, Syracuse University Press, 1969.Google Scholar
  5. 5.
    A. R. Marder and G. Krauss:ASM, 1970, p. 822.Google Scholar
  6. 6.
    T. Swarr and G. Krauss:Grain Boundaries in Engr. Mat’ls., J. L. Walteret al, eds., p. 127, Claitor’s Publishing Division, Baton Rouge, La., 1975.Google Scholar
  7. 7.
    M. J. Roberts: Met.Trans., 1970, vol. 1, p. 3287.Google Scholar
  8. 8.
    T. Inoneet al:Trans. Jap. Inst. Metals, 1970, vol. 11, p. 36.Google Scholar
  9. 9.
    S. Matsudaet al:Trans. Iron Steel Inst. Jap., 1972, vol. 12, p. 325.Google Scholar
  10. 10.
    C. A. Apple, R. N. Caron, and G. Krauss:Met. Trans., 1974, vol. 5, p. 593.CrossRefGoogle Scholar
  11. 11.
    R. N. Caron and G. Krauss:Met. Trans., 1972, vol. 3, p. 2381.CrossRefGoogle Scholar
  12. 12.
    G. Krauss and A. R. Marder:Met. Trans., 1971, vol. 2, p. 2343.CrossRefGoogle Scholar
  13. 13.
    G. R. Speich and W.C. Leslie:Met. Trans., 1972, vol. 3, p. 1043.CrossRefGoogle Scholar
  14. 14.
    C. S. Smith and L. Guttman:Trans. AIME, 1953, vol. 197, p. 81.Google Scholar
  15. 15.
    T. L. Johnston and C. E. Feltner:Met. Trans., 1970, vol. 1, p. 1161.Google Scholar
  16. 16.
    R. H. Richman:Trans. TMS-AIME, 1968, vol. 227, p. 159.Google Scholar
  17. 17.
    C. L. Magee and R. C. Davies:Acta Met., 1971, vol. 19, p. 345.CrossRefGoogle Scholar
  18. 18.
    H. Muir, B. L. Averbach, and M. Cohen:Trans. ASM, 1955, vol. 47, p. 380.Google Scholar
  19. 19.
    C. L. Magee and H. W. Paxton:Trans. TMS-AIME, 1968, vol. 242, p. 1766.Google Scholar
  20. 20.
    D. Kuhlman-Wilsdorf:Trans. TMS-AIME, 1962, vol. 224, p. 1047.Google Scholar
  21. 21.
    D. KuhJman-Wilsdorf:Met. Trans., 1970, vol. 1, p. 3173.Google Scholar
  22. 22.
    D. W. Smith and R. F. Hehemann:J. Iron Steel Inst., 1971, vol. 209, p. 476.Google Scholar
  23. 23.
    A. R. Cox:J. Iron Steel Inst., 1967, vol. 205, p. 51.Google Scholar
  24. 24.
    E. Hornbogen and G. Staniek:J. Mater. Sci, 1974, vol. 9, p. 879.CrossRefADSGoogle Scholar
  25. 25.
    A. W. Thompson, M. I. Baskes, and W. F. Flanagan:Acta Met., 1973, vol. 21, p. 1017.CrossRefGoogle Scholar
  26. 26.
    M. F. Ashby:Phil. Mag., 1970, vol. 21, p. 399.CrossRefADSGoogle Scholar
  27. 27.
    M. R. Staker and D. L. Holt:Acta Met., 1972, vol. 20, p. 569.CrossRefGoogle Scholar
  28. 28.
    J. D. Embury, A. S. Keh, and R. M. Fisher:Trans. TMS-AIME, 1966, vol 236, p. 1252.Google Scholar
  29. 29.
    T. M. Scoonover and G. Krauss:Metals Eng. Quart, 1972, vol. 12, p. 41.Google Scholar

Copyright information

© The Metallurgical of Society of AIME 1976

Authors and Affiliations

  • Thomas Swarr
    • 1
  • George Krauss
    • 2
  1. 1.Knolls Atomic Power LaboratorySchenectady
  2. 2.Colorado School of MinesGolden

Personalised recommendations