Structural Superplasticity of Steels

  • Oscar A. Kaibyshev

Abstract

The ductility of steels can be increased dramatically by transforming them into the superplastic state. Due to polymorphic transformations in iron and a strong dependence of the microstructure and phase constitution of these alloys on the quantity of the alloying elements, additional possibilities for the refinement and stabilization of the microstructure arise. In the temperature range 0.4–0.7 T m (which is characteristic of SP-deformation) in steels it is possible to obtain: (i) a matrix-type microstructure based on the α- or γ-phases and carbides (inter-metallics); (ii) a microduplex-type structure based on the α- and γ-phases; (iii) a mixture of the α- and γ-phases and carbides (intermetallics). A second phase stabilizes the microstructure and promotes SP flow. To analyze the conditions required for SP flow in various phase fields, it is most convenient to start with the iron-carbon alloys. Chemical compositions of the iron-based alloys which will be discussed and parameters of SP deformation are given in Table 7.1.

Keywords

Fatigue Titanium Nickel Crystallization Furnace 

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References

  1. 7.1
    M. Yoshiyuki, J. Nobihiro, H. Musaki: Netzu shori. J. Jap. Soc. Heat. Treat. N2, 84 (1985)Google Scholar
  2. 7.2
    A.P. Gulyaev: Sverkhplastichnosf Staley ( Metallurgia, Moscow 1982 ) p. 56Google Scholar
  3. 7.3
    O.A. Kaibyshev, I.N. Nugmanov: Izv. VUZov. Chern. Met. N3, 107 (1986)Google Scholar
  4. 7.4
    N.I. Nadirashvili, M.H. Shorshorov, V.K. Antipov: Fiz. Khim. Obrab. Metall. N5, 134 (1971)Google Scholar
  5. 7.5
    MJ. Stewart: Met. Trans. 7A, 399 (1976)CrossRefGoogle Scholar
  6. 7.6
    E. Pohl, Ml. Bernshtein, L.M. Kaputkina: Izv. Akad. Nauk SSSR, Metally, N4, 159 (1980)Google Scholar
  7. 7.7
    J. Wadsworth, O.D. Sherby: J. Mater. Sci. 13, 2645 (1979)CrossRefADSGoogle Scholar
  8. 7.8
    J. Wadsworth, L.E. Eiselstein, O.D. Sherby: Mater. Eng. Appl. N1, 143 (1979)Google Scholar
  9. 7.9
    A.A. Bochvar, V.A. Davydov, L.K. Druginin: Dokl. Akad. Nauk SSSR 230 (N2), 318 (1976)Google Scholar
  10. 7.10
    WJ. Kim, G. Frommeyer, O.A. Ruano, J.B. Wolfelstein, O.D. Sherby: Scripta. Metal. 23, 1515 (1989)CrossRefGoogle Scholar
  11. 7.11
    A.P. Surovtsev, V.E. Sukhanov: Metalloved. Term. Obrab. Metal. N10, 15 (1984)Google Scholar
  12. 7.12
    O.A. Kaibyshev: Sverkhplastichnost’ Promyshlennykh Splavov ( Metallurgia, Moscow 1984 ) p. 264Google Scholar
  13. 7.13
    C.I. Smith, N. Ridley: Metals Technol. 1, 191 (1974)Google Scholar
  14. 7.14
    H.W. Shadier: Trans. Met. Soc. AIME 242, 1281 (1974)Google Scholar
  15. 7.15
    O.D. Sherby, B. Walser, C.M. Yong, E.M. Cady: Scripta. Metal. 9, 569 (1975)CrossRefGoogle Scholar
  16. 7.16
    K. Watanabe, J. Torisaka, H. Suzuki: J. Iron Steel Inst. Jap. 5, 1193 (1989)Google Scholar
  17. 7.17
    O.A. Bannykh, Т.К. Pedan: Izv. Akad. Nauk SSSR, Metally N6, 138 (1975)Google Scholar
  18. 7.18
    M. Hulderbrand, T. Kreybing: Neue Htitte 2, 89 (1974)Google Scholar
  19. 7.19
    D. Treheux, D. Nguyen, C. Renault, P. Guiraldeng: Mem. Sci. Rev. Met. 12, 765 (1977)Google Scholar
  20. 7.20
    J. Yashuhiro: Curr. Adv. Mater. Process 1 (N5), 1309 (1988)Google Scholar
  21. 7.21
    C.R. Yoder, V. Weiss: Met. Trans. 3, 675 (1972)CrossRefGoogle Scholar
  22. 7.22
    V.M. Umnova, V.D. Sadovski: Fiz. Met. Metalloved. 45 (N5), 1028 (1978)Google Scholar
  23. 7.23
    V.K. Fedukin, M.E. Smagorinsky: Termotsiklicheskaya Obrabotka Metallov i Detaley Mashin ( Mashinostroenie, Leningrad 1989 ) p. 255Google Scholar
  24. 7.24
    V. Fedukin, Ju. Ganeva: Techn. mysr 12 (N1), 8 (1979)Google Scholar
  25. 7.25
    M.N. Bodjako, S.A. Astapchik: Elektrotermoobrabotka Splavov s Osobymi Svoistvami ( Nauka i tekhnika, Minsk 1977 ) p. 256Google Scholar
  26. 7.26
    D. Spinelly: Metallurgica ABM 31, 449 (1975)Google Scholar
  27. 7.27
    O.A. Bannykh, U.K. Kovneristy, T.N. Pedan: Izv. Akad. Nauk SSSR, Metally N6, 123 (1972)Google Scholar
  28. 7.28
    G. Carfi, C. Pedrix, D. Bouleau, C. Donadille: “Microstructural Evolution in AISI304L Grade Stainless Steel During Isothermal Straining by Hot Torsion”, in Proc. 7th Int. Conf. on Strength of Metals and Alloys, Vol. 2, ed. by HJ. McQueen, J.-P. Bailon, J.I. Dickson, J. J. Jonas, and M.G. Akben (Pergamon Press,Oxford, 1986 ) p. 929–934Google Scholar
  29. 7.29
    T. Maki, K. Akasaka, K. Okuno, I. Tamura: Trans. Iron. Steel Inst. Jap. 82, 253 (1982)Google Scholar
  30. 7.30
    T. Maki, S. Okagishi, I. Tamura: “Dynamic Recrystallization in Ferritic Stainless Steel”, in Proc. 6th Int. Conf. on Strength ofMetalls and Alloys, Vol. 2, ed. by R.C. Gifkins ( Pergamon Press, Oxford 1983 ) p. 529Google Scholar
  31. 7.31
    Gao Fei: Acta Met. Sin. 24, 195 (1988)Google Scholar
  32. 7.32
    H. Yoshihira, M. Ishii: J. Iron Steel Inst. Jap. 69, 1440 (1983)Google Scholar
  33. 7.33
    M. Mantel, B. Baroux, D. Gex, P. Pedarre: Met. Etud. Sci. Rev. Met. 86, 381 (1989)Google Scholar
  34. 7.34
    О.A. Bannykh, M.I. Zakharova, A.I. Vasilyeva: Metalloved. Term. Obrab. Metal. N1, 38 (1984)Google Scholar
  35. 7.35
    J. Mikhel, M. Burshak: Fiz. Metal. Metalloved. 64, 815 (1981)Google Scholar
  36. 7.36
    N. Matzumura, M. Tokizane: Trans. Iron Steel Inst. Jap. 26, 315 (1986)CrossRefGoogle Scholar
  37. 7.37
    M. Okado, M. Tokisane, O.D. Sherby: Trans. Iron Steel Inst. Jap. 22, 143 (1982)CrossRefGoogle Scholar
  38. 7.38
    J. Wadsworth, J. Lin, O.D. Sherby: Metals Technology 8, 190 (1981)Google Scholar
  39. 7.39
    T. Oyame, J. Wadsworth, M. Korchinsky, O.D. Sherby: “Superplasticity UHC Steels”, in Proc. 5th Int. Conf. on Strength of Metalls and Alloys, Vol. 2 ( Pergamon Press, Toronto 1979 ) p. 381–386Google Scholar
  40. 7.40
    Y. Maehara, Y. Ohmori: Met. Trans. 18A, 663 (1987)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • Oscar A. Kaibyshev
    • 1
  1. 1.Institute of Metal Superplasticity ProblemsRussian Academy of SciencesUfaRussia

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