Plastic flow, microstructure evolution, and defect formation during primary hot working of titanium and titanium aluminide alloys with lamellar colony microstructures

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences

Volumn 357, Issue 1756, 1999, Pages 1487-1512

  Semiatin, S L ^a   Seetharaman, V ^b   Ghosh, A K ^c  

^a AIR FORCE RESEARCH LABORATORY   (United States)

^b UES INC   (United States)

^c UNIVERSITY OF MICHIGAN   (United States)

Author keywords

Cavitation; Constitutive behaviour; Ingot breakdown; Shear band formation; Titanium alloys; Titanium aluminide alloys

Indexed keywords

EID: 0346338467     PISSN: 1364503X     EISSN: None     Source Type: Journal    
DOI: 10.1098/rsta.1999.0386     Document Type: Article

References (55)

1. Bailey, J. E. & Hirsch, P. B. 1962 The recrystallization process in some polycrystalline metals. Proc. R. Soc. Lond. A 267, 11-30.
2. Briottet, L., Jonas, J. J. & Montheillet, F. 1996 A mechanical interpretation of the activation energy of high-temperature deformation in two-phase materials. Acta Mater. 44, 1665-1672.
3. Cockcroft, M. G. & Latham, D. J. 1966 A simple criterion of fracture for ductile metals. National Engineering Laboratory report no. 240, East Kilbride, Glasgow, Scotland.
4. Cope, M. T. & Ridley, N. 1986 Superplastic deformation characteristics of microduplex Ti-6A1-4V alloy. Mater. Sci. Technol. 2, 140-145.
5. Courtney, T. H. 1990 Mechanical behavior of materials. New York: McGraw-Hill.
6. Dao, M., Kad, B. & Asaro, R. J. 1996 Deformation and fracture under compressive loading in lamellar TiA1 microstructures. Phil. Mag. A 74, 569-591.
7. DeLo, D. P. & Semiatin, S. L. 1999 Finite element modeling of nonisothermal equal channel angular extrusion. Metall. Mater. Trans. A 30. (In the press.)
8. Doherty, R. D., Hughes, D. A., Humphreys, F. J., Jonas, J. J., Jensen, D. J., Kassner, M. E., King, W. E., McNelley, T. R., McQueen, H. J. & Rollett, A. D. 1997 Current issues in recrystallization: a review. Mater. Sci. Engng A 238, 219-274.
9. Dowson, A. L., Blackwell, P., Jones, M., Young, J. M. & Duggan, M. A. 1998 Hot rolling and superplastic forming response of net shape processed Ti-6A1-4V produced by centrifugal spray deposition. Mater. Sci. Technol. 14, 640-650.
10. Frost, H. J. & Ashby, M. F. 1982 Deformation-mechanism maps. Oxford: Pergamon.
11. Ghosh, A. K. & Semiatin, S. L. 1999 An analysis of cavity nucleation and early growth during hot deformation. Acta Mater.
12. Gifkins, R. C. 1982 Mechanisms of superplasticity. In Superplastic forming of structural alloys (ed. N. E. Paton & C. H. Hamilton), pp. 3-26. Warrendale, PA: The Metallurgical Society of AIME.
13. Goetz, R. L. & Seetharaman, V. 1998 Modeling dynamic recrystallization using cellular automata. Scr. Mater. 38, 405-413.
14. Humphreys, F. J. & Hatherly, M. 1995 Recrystallization and related phenomena. Oxford: Elsevier.
15. Inui, H., Oh, M. H., Nakamura, A. & Yamaguchi, M. 1992 Room temperature tensile deformation of polysynthetically twinned (PST) crystals of TiA1. Acta Metall. Mater. 40, 3095-3104.
16. Iwahashi, Y., Wang, J., Horita, Z., Nemoto, M. & Langdon, T. G. 1996 Principle of equal-channel angular pressing for the processing of ultrafine grain materials. Scr. Mater. 35, 143-147.
17. Jonas, J. J. & McQueen, H. J. 1975 Recovery and recrystallization during high temperature deformation. In Treatise on materials science. Vol. 6. Plastic deformation of materials (ed. R. J. Arsenault), pp. 394-490. New York: Academic.
18. Jonas, J. J., Sellars, C. M. & McG. Tegart, W. J. 1969 Strength and structure under hot-working conditions. Metall. Rev. 14, 1-24.
19. Kaibyshev, O. A., Valitov, V. A. & Salishchev, G. A. 1993 The effect of phase state and conditions of hot deformation on the formation of microduplex structure in a high-temperature nickel alloy. Phys. Metals Metallog. 75, 409-414.
20. Korshunov, A. A., Enikeev, F. U., Mazurskii, M. I., Salishchev, G. A., Muravlev, A. V., Chistyakov, P. V. & Dimitriev, O. O. 1994 Effect of method of high temperature loading on transformation of lamellar structure in VT9 titanium alloy. Russ. Metall. 3, 103-108.
21. Kroll, S., Mehrer, H., Stolwijk, N. A., Herzig, C., Rosenkranz, R. & Frommeyer, G. 1992 Titanium self-diffusion in the intermetallic compound γ-TiA1. Z. Metallk. 83, 591-595.
22. Laasraoui, A. & Jonas, J. J. 1991 Recrystallization of austenite after deformation at high temperatures. Metall. Trans. A 22, 151-160.
23. Lebensohn, R. A. & Canova, G. R. 1997 A self-consistent approach for modeling texture development of two-phase polycrystals: application to titanium alloys. Acta Mater. 45, 3687-3694.
24. Lipsitt, H. A., Schectman, D. & Schafrik, R. E. 1975 The deformation and fracture of TiAl at elevated temperatures. Metall. Trans. A 6, 1991-1996.
25. Lombard, C. M., Goetz, R. L. & Semiatin, S. L. 1993 Numerical analysis of the hot tension test. Metall. Trans. A 24, 2039-2047.
26. Malcor, J. G., Montheilect, F. & Champin, B. 1985 Mechanical and microstructural behavior of Ti-6A1-4V in the hot working range. In Titanium: science and technology (ed. G. Luetjering, U. Zwicker & W. Bunk), pp. 1495-1502. Oberursel, Germany: Deutsche Gesellschaft für Metallkunde e. V.
27. Matsumoto, T., Nishigaki, M., Fukuda, M. & Nishimura, T. 1985 Effect of heat treatment on the surface defect and mechanical properties of Ti-6A1-4V rolled bar. In Titanium: science and technology (ed. G. Luetjering, U. Zwicker & W. Bunk), pp. 617-623. Oberursel, Germany: Deutsche Gesellschaft für Metallkunde e. V.
28. Mayo, M. J. & Nix, W. D. 1989 Direct observation of superplastic flow mechanisms in torsion. Acta Metall. 37, 1121-1134.
29. Nadai, A. 1950 Theory of flow and fracture, of solids. New York: McGraw-Hill.
30. Oh, S. I., Semiatin, S. L. & Jonas, J. J. 1992 An analysis of the isothermal hot compression test. Metall. Trans. A 23, 963-975.
31. Roberts, W., Boden, H. & Ahlblom, B. 1979 Dynamic recrystallization kinetics. Metal Sci. 13, 195-205.
32. Rollett, A. D. 1997 Overview of modeling and simulation of recrystallization. Prog. Mater. Sei. 42, 79-99.
33. Rollett, A. D., Luton, M. J. & Srolovitz, D. J. 1992 Microstructural simulation of dynamic recrystallization. Acta Metall. Mater. 40, 43-55.
34. Sah, J. P., Richardson, G. J. & Sellars, C. M. 1974 Grain size effects during dynamic recrystallization of nickel. Metal Sci. 8, 325-331.
35. Seetharaman, V. & Semiatin, S. L. 1996 Influence of temperature transients on the hot workability of a two-phase gamma titanium aluminide alloy. Metall. Mater. Trans. A 27, 1987-2004.
36. Seetharaman, V. & Semiatin, S. L. 1998 Intergranular fracture of gamma titanium aluminides under hot working conditions. Metall. Mater. Trans. A 29, 1991-1999.
37. Seetharaman, V. & Semiatin, S. L. 1999 Effect of the lamellar grain size on plastic flow behavior and microstructure evolution during hot working of a gamma titanium aluminide alloy. Metall. Mater. Trans. A. (Submitted.)
38. Segal, V. M. 1992 Working of metals by simple shear deformation process. In Proc. Fifth Int. Aluminum Technol. Seminar 2, 403-407.
39. Segal, V. M., Reznikov, V. I., Drobyshevkiy, A. E. & Kopylov, V. I. 1981 Plastic working of metals by simple shear. Russ. Metall. 1, 99-105.
40. Sellars, C. M. 1990 Modeling microstucture development during hot rolling. Mater. Sci. Technol. 6, 4133-4144.
41. Semiatin, S. L. & DeLo, D. P. 1999 Equal channel angular extrusion of difficult-to-work alloys. Air Force invention D00291, US patent allowance granted.
42. Semiatin, S. L. & Jonas, J. J. 1984 Formability and workability of metals. Materials Park, OH: ASM International.
43. Semiatin, S. L. & Lahoti, G. D. 1981 Deformation and unstable flow in hot forging of Ti-6A1-2Sn-2Zr-2Mo-0.1Si. Metall. Trans. A 12, 1705-1717.
44. Semiatin, S. L., Thomas, J. F. & Dadras, P. 1983 Processing-microstructure relationships for Ti-6A1-2Sn-4Zr-2Mo-0.1Si. Metall. Trans. A 14, 2363-2374.
45. Semiatin, S. L., Segal, V. M., Goetz, R. L., Goforth, R. E. & Hartwig, T. 1995 Workability of a gamma titanium aluminide alloy during equal channel angular extrusion. Scr. Metall. Mater. 33, 535-540.
46. Semiatin, S. L., Seetharaman, V. & Weiss, I. 1997 Hot working of titanium alloys: an overview. In Advances in the science and technology of titanium alloy processing (ed. I. Weiss, R. Srinivasan, P. J. Bania, D. Eylon & S. L. Semiatin), pp. 3-73. Warrendale, PA: The Minerals, Metals and Materials Society.
47. Semiatin, S. L., Seetharaman, V., Ghosh, A. K., Shell, E. B., Simon, M. P. & Fagin, P. N. 1998 Cavitation during hot tension testing of Ti-6A1-4V. Mater. Sci. Engng A 256, 92-110.
48. Semiatin, S. L., Goetz, R. L., Shell, E. B., Seetharaman, V. & Ghosh, A. K. 1999 Cavitation and failure during hot forging of T1-6A1-4V. Metall Mater. Trans. A 30. (In the press.)
49. Shen, G., Semiatin, S. L. & Shivpuri, R. 1995 Modeling microstructural development during the forging of Waspaloy. Metall. Mater. Trans. A 26, 1795-1803.
50. Springarn, J. R. & Nix, W. D. 1978 Diffusional creep and diffusionally accommodated grain rearrangement. Acta Metall. 26, 1389-1398.
51. Suzuki, H. G. & Eylon, D. 1993 Hot ductility of titanium alloys - a comparison with carbon steels. ISIJ Int. 33, 1270-1274.
52. Weiss, I. & Semiatin, S. L. 1998 Thermomechanical processing of beta titanium alloys - an overview. Mater. Sci. Engng A 243, 46-65.
53. Weiss, I. & Semiatin, S. L. 1999 Thermomechanical processing of alpha titanium alloys - an overview. Mater. Sci. Engng A 263. (In the press.)
54. Weiss, I., Welsch, G. E., Froes, F. H. & Eylon, D. 1985 Mechanisms of microstructure refinement in Ti-6A1-4V. In Titanium: science and technology (ed. G. Luetjering, U. Zwicker & W. Bunk), pp. 1503-1510. Oberursel, Germany: Deutsche Gesellschaft für Metallkunde e. V.
55. 3A1 lamellar alloy. Metall. Mater. Trans. A 27, 127-134.