Abstract
Samples of Ti-6A1-4V containing 10 vol pct of either TiC or SiC have been tested in tension at temperatures up to 760 °C, and the mechanical properties have been compared with those of the unreinforced matrix alloy. It has been found that the yield stress and the tensile strength of the TiC-containing composite are superior to those of the SiC composite at room temperature but that this behavior is reversed at the higher temperatures. The ductility of the TiC composite is about 2 pct at room temperature and increases with increase of temperature. No ductility is found for the SiC composite at room temperature, but some ductility is observed at the higher temperatures. These observations are interpreted in terms of the extent and nature of the reaction zones between the matrix alloy and the reinforcement and in terms of the failure mechanisms observed using scanning (SEM) and transmission electron microscopy (TEM).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
S. Ochiai, K. Osamure, and Y. Murakami:Z. Metallkd., 1983, vol. 74, pp. 68–73.
S. Ochiai and Y. Murakami:Z. Metallkd., 1982, vol. 73, pp. 229–31.
S. Ochiai and Y. Murakami:J. Mater. Sci., 1979, 1979, vol. 14, pp. 831–40.
P. Pampuch, W. Slomka, and J. Chlopek:Ceram. Int., 1986, vol. 12, 1986, pp. 9–18.
S. Ochiai and Y. Murakami:Z. Metallkd., 1981, vol. 72, pp. 827–31.
P. Soumeldis, J.M. Quenisset, R. Naslain, and N.S. Stoloff:J. Mater. Sci., 1986, vol. 21, pp. 895–903.
P.K. Brindley:in High Temperature Ordered Intermetallic Alloys, MRS Symp. Proa, N.S. Stoloff, C.C. Koch, C.T. Liu, and O. Izumi, eds., MRS, Pittsburgh, PA, 1987, vol. 81, pp. 419–24.
P.R. Smith, F.H. Froes, and J.T. Cammett: inFailure Modes in Composites VI, J.A. Cornie and F.W. Crossman, eds., TMS-AIME, Warrendale, PA, 1977, pp. 143–68.
S.R. Nutt: inInterfaces in Metal Matrix Composites, A.K. Dingra and S.G. Fishman, eds., TMS-AIME, Warrendale, PA, 1986, p. 157.
L.-J. Fu, M. Schmerling, and H.L. Marcus:Composite Materials: Fatigue and Fracture, Proc. Symp., Dallas, TX, ASTM, Philadelphia, PA, 1986, pp. 51–72.
S.R. Nutt and R.W. Carpenter:Mater. Sci. Eng., 1985, vol. 75, pp. 169–77.
W.H. Hunt: Presented at the 9th Annual Discontinuous Reinforced Metals Working Group Meeting, Park City, UT, ASM, 1987.
D.G. Konitzer and M.H. Loretto:Acta Metall., 1989, vol. 37 (2), pp. 397–406.
P. Martineau, R. Pailler, M. Lahaye, and R. Naslain:J. Mater. Sci., 1984, vol. 19, pp. 2749–70.
C. Rhodes and R. Spurling: inRecent Advances in Composites in the United States and Japan, ASTM STP 864, J.R. Vinson and M. Taya, eds., ASTM, Philadelphia, PA, 1985, pp. 585–99.
M. Lancin, J.S. Bour, and J. Thibault-Desseaux: inHigh Temperature/High Performance Composites, MRS Symp. Proc., F.D. Lemkey, S.G. Fishman, A.G. Evans, and J.R. Strife, eds., MRS, Pittsburgh, PA, 1988, vol. 120, pp. 351–56.
J.C. Chesnutt, C.G. Rhodes, and J.C. Williams: inTitanium and Titanium Alloys Source Book, ASM, Metals Park, OH, 1982, pp. 100–39.
C.P. You, A.W. Thompson, and I.M. Bernstein:Scripta Metall., 1987, vol. 21, pp. 181–85.
S.R. Nutt and A. Needleman:Scripta Metall., 1987, vol. 21, pp. 705–10.
W.R. Tyson:Proc. 1st Int. Conf. on Titanium, Pergamon Press, London, 1968, pp. 479–87.
Author information
Authors and Affiliations
Additional information
D.G. KONITZER, formerly with the Aluminum Company of America, Alcoa Center, PA.
This paper is based on a presentation made in the symposium “Interfaces and Surfaces of Titanium Materials” presented at the 1988 TMS/AIME fall meeting in Chicago, IL, September 25–29, 1988, under the auspices of the TMS Titanium Committee.
Rights and permissions
About this article
Cite this article
Loretto, M.H., Konitzer, D.G. The effect of matrix reinforcement reaction on fracture in Ti-6Ai-4V-base composites. Metall Trans A 21, 1579–1587 (1990). https://doi.org/10.1007/BF02672573
Issue Date:
DOI: https://doi.org/10.1007/BF02672573