Abstract
The microstructure and morphology of directionally solidified samples of the pseudobinary eutectic alloy CoNi-Cr23C6 have been characterized with respect to the growth rate and temperature gradient. Transmission electron microscopy studies show that, in spite of the irregularity of the microstructure, a simple and reproducible cube-cube orientation relationship exists between the phases, which can be explained in terms of the close atomic coincidence between the crystal lattices. The observed microstructures can readily be related to the crystallographic preferred growth directions of the alloy.
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References
F. R. Mollard and M. C. Flemings, Trans. AME 239 (1967) 1526.
(1967) 1534.
W. Koster and S. Kabermann, Arch. Eisenhüttenwesen 26 (1955) 677.
W. Koster and F. Sperner, 26 (1955) 555.
P. R. Sahm, M. Lorenz, M. Hugi and V. Fruhaue, Met. Trans. 3 (1972) 1022.
K. Firtscher and H. Mangers, Inst. Werkstoff-Forschung, Porz-Wahn, Germany IB 012-72/20 (1973).
K. Fritscher, G. Wirth and W. Bunk, Inst. Werkstoff-Forschung, Porz-Wahn, Germany, DRL-FB 73/77 (1973).
E. R. Thompson and F. D. Lemkey, Met. Trans. 1 (1970) 2799.
, “Composite Materials”, Vol. 4, edited by L. J. Broutman and R. H. Krock, (Academic Press, London, 1974) p. 102.
G. Zambelli and W. Kurz, Proceedings of the International Conf. Composite Materials ICCM, Geneva, Boston (April 1975) vol. 1, 482.
M. G. Day and A. Hellawell, Proc. Roy. Soc. A 305 (1968) 473.
E. H. Koster, A. R. Tholen and A. Howie, Phil. Mag. 10 (1964) 1093.
D. J. Fisher and W. Kurz, Proceedings of “Quality Control of Engineering Alloys and the Role of Metals Science”, Delft, March 1977.
G. A. Chadwick, Prog. Mater. Sci. 12 (1963) 2.
W. A. Tiller, “Liquid Metals and Solidification” (ASM Cleveland, Ohio, 1958) p. 276.
J. D. Hunt and K. A. Jackson, Trans. AIME 236 (1966) 843.
B. Toloui and A. Hellawell, Acta Met. 24 (1976) 565.
S. Nagakura and S. Oketani, Trans. I.S.I.J. 8 (1968) 265.
L. M. Hogan, R. W. Kraft and F. D. Lemkey, “Advances in Materials Research”, Vol. 5, (Wiley, London, 1970) p. 83.
J. D. Hunt and J. P. Chilton, J. Inst. Met. 92 (1963) 21.
P. Truelove, D. D. Double and A. Hellawell, J. Cryst. Growth 2 (1968) 191.
A. Hellawell, Prog. Mat. Sci. 15 (1970) 1.
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Double, D.D., Zambelli, G. The microstructure and crystallography of directionally solidified (Co, Ni)-Cr23C6 eutectic alloy. J Mater Sci 13, 534–540 (1978). https://doi.org/10.1007/BF00541803
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DOI: https://doi.org/10.1007/BF00541803