Abstract
The microstructure of melt-spun Al-17.3 at% Cu eutectic alloy ribbons with different thicknesses have been revealed by means of electron microscopy and X-ray techniques. Thick ribbons (>20μm) consist of finely-dispersed α-Al and Al2Cu equilibrium phases showing lamellar or irregular morphology. In thin ribbons a considerable fraction of supersaturated α-Al solid solution and the metastable Al4Cu9 phase have been detected. The experimental facts on the identity of the phases, their morphology and particle size for given processing conditions are discussed within the framework of a heat flow model including the solidification process as well as post-solidification transformations. The microstructural features are considered to be determined by local and time variations of the ribbon-wheel contact.
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References
H. Jones, in “Ultrarapid Quenching of Liquid Alloys”, edited by H. Hermann (Academic Press, New York 1981) p. 1.
Idem, in “Rapidly Solidified Amorphous and Crystalline Alloys”, edited by B. H. Kear, B. C. Giessen and M. Cohen, (Elsevier, New York, 1982) p. 71.
M. H. Burden and H. Jones, J. Inst. Metals 98 (1970) 249.
M. G. Scott, J. Mater. Sci. 9 (1974) 1372.
D. B. Williams and J. W. Edington, ibid. 12 (1977) 126.
R. K. Singh, K. Chattopadhyay, S. Lele and T. R. Anantharaman, ibid. 17 (1982) 1617.
K. Chattopadhyay, A. P. Ramieni and P. Ramachandrarao, ibid. 15 (1980) 797.
R. Sellger, W. Löser and W. Neumann, ibid. 19 (1984) 2145.
H. H. Liebermann and C. D. Graham, Jr., IEEE Trans. Magn. MAG-12 (1976) 921.
S. C. Huang and H. C. Fieldler, Metall. Trans. 12A (1981) 1107.
D. Stephan and K. Richter, Cryst. Res. Techn. 16 (1981) K57.
S. C. Huang and A. M. Ritter, Technical Information Series Report 83CRD 015 (General Electric Corporate Research and Development, Schenectady, 1983).
M. J. Tenwick and H. A. Davies, Mater. Sci. Eng. 63 (1984) L1.
G. V. S. Sastry, K. K. Bariar, K. Chattopadhyay and P. Ramachandrarao, Z. Metallkde. 71 (1980) 756.
B. Predel and G. Duddek, ibid. 69 (1978) 773.
J. A. Van Der Hoeven, P. Van Mourik and E. J. Mittemeyer, J. Mater. Sci. Lett. 2 (1983) 158.
P. H. Shingu and R. Ozaki, Metall. Trans. 6A (1975) 33.
R. C. Ruhl, Mater. Sci. Eng. 1 (1967) 313.
M. G. Scott and J. A. Leake, Acta Metall. 23 (1975) 503.
J. Van Suchtelen, J. Cryst. Growth 43 (1978) 28.
L. Katgerman, Scripta Metall. 17 (1983) 537.
M. Cohen et al., in “Rapid Solidification Processing: Principles and Technologies II”, edited by R. Mehrbian et al. (Claitor's, Baton Rouge, 1980) p. 1.
S. C. Huang and H. C. Fiedler, Mater. Sci. Eng. 51 (1981) 39.
F. S. Ham, J. Phys. Chem. Solids 6 (1958) 335.
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Neumann, W., Leonhardt, M., Löser, W. et al. Effect of ribbon-wheel contact on the microstructure of melt-spun Al-Cu eutectic alloy ribbons. J Mater Sci 20, 3141–3149 (1985). https://doi.org/10.1007/BF00545179
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DOI: https://doi.org/10.1007/BF00545179