Abstract
The isothermal forging behavior of a wire reinforced superalloy powder composite has been examined. The material consisted of a Mar-M200 matrix containing 40 pct by volume of tungsten wire and was prepared by hot isostatic pressing. Specimens were deformed by uniaxial compression at constant temperature in the range 1050 °C to 1180 °C, and at constant true strain rates between 10-5 s-1 and 10-1 s-1. Loading was normal to the direction of wire alignment. Microstructural defects existing in the as-pressed composites are compared with defects in the forged materials. An upper bound forming limit occurs when fibers come into contact. However, microstructural damage occurs at lower strains which depends on temperature and strain rate. Observed and calculated values of peak flow stress are used to define practical forming conditions for the material which should avoid the formation of internal damage at low strains.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
D.W. Petrasek, R. A. Signorelli, and J. W. Weeton: NASA TN-D-4787, September 1968.
R. A. Signorelli:Proc. Int. Symp. on Composites: Materials, Design and Structures, Boston, MA, April 1975, TMS-AIME, Warrendale, PA, p. 411.
P. J. Mazzei, G. VanDrunen, and M. J. Hakim: AGARD-CP-200,Proc. Conference on Advanced Fabrication Techniques in Powder Metallurgy and Their Economic Implications, North Atlantic Treaty Organization, Neuilly sur Scine, France, 1976, p. SC-7.
A. Y. Kandeil: Ph. D. Thesis, Carleton University, Ottawa, 1979.
A.Y. Kandeil, W. Wallace, J-P. A. Immarigeon, and M. C. de Malherbe:Metal Science, 1982, vol. 16, pp. 363–70.
A. Y. Kandeil and R. T. Holt: NAE LTR-ST. 982, National Research Council of Canada, Ottawa, March 1978.
J-P. A. Immarigeon, A. Y. Kandeil, W. Wallace, and M. C. de Malherbe:Jour, of Testing and Evaluation, 1980, vol. 8, pp. 273–81.
J-P. A. Immarigeon and T. Terada: NAE LTR-ST. 785, National Research Council of Canada, Ottawa, August 1975.
J-P. A. Immarigeon, P. Adams, and R. Kulchyski: NAE LTR-ST. 786, National Research Council of Canada, Ottawa, August 1975.
H. J. McQueen and J. J. Jonas: inTreatise on Materials Science and Technology, vol. 6, Plastic Deformation of Materials, R. J. Arsenault, ed., Academic Press, New York, NY, 1975, p. 393.
A. Y. Kandeil, J-P. A. Immarigeon, W. Wallace, and M. C. de Malherbe:Met. Sci., 1980, vol. 14, pp. 493–99.
J-P. A. Immarigeon and P. H. Floyd:Metall. Trans. A, 1981, vol. 12A, pp. 1177–86.
J-P. A. Immarigeon, G. VanDrunen, and W. Wallace:Third Int. Symp. on Superalloys, Seven Springs, PA, Claitor’s Pub. Div., Baton Rouge, LA, 1976, p. 463.
T. Ertürk, H. A. Kuhn, and A. Lawley:Metall. Trans., 1974, vol. 5, pp. 2295–2303.
F. A. McClintock:Ductility, ASM, Metals Park, OH, 1968, p. 255.
J. N. Goodier:Trans. ASME, 1933, vol. 55, p. 39.
A. R. Cox, J. B. Moore, and E. C. VanReuth; AGARD Conference Proceedings No. 256 on Advanced Fabrication Processes, Paper 12, September 1978.
J. M. Larson, F. A. Thompson, and R.C. Gibson:Proc. 3rd Int. Symp. on Superalloys: Metallurgy and Manufacture, B. H. Kearet al., eds., Claitor’s Pub. Div., Baton Rouge, LA, 1976, p. 483.
Author information
Authors and Affiliations
Additional information
Formerly with Mechanical and Aeronautical Engineering Department, Carleton University, Ottawa, Ontario, Canada, K1S 5B6.
Rights and permissions
About this article
Cite this article
Kandeil, A.Y., Immarigeon, JP.A., Wallace, W. et al. The fracture behavior of tungsten wire reinforced superalloy composites during isothermal forging. Metall Trans A 15, 501–510 (1984). https://doi.org/10.1007/BF02644974
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02644974