Abstract
An aluminium-copper eutectic alloy has been subjected to rapid solidification, utilising the “gun” technique, with different substrate temperatures to evaluate its influence on the cooling rate and microstructure. At all temperatures, the microstructure is essentially non-uniform and consists of metastable solid solution (with decomposition products) as well as eutectic regions. The solid state decomposition of the metastable solid solution is strongly dependent on the substrate temperature and leads to the formation of different metastable precipitates and consequent changes in microstructure. The origin of the different microstructures is discussed.
Similar content being viewed by others
References
H. Jones, in “Rapidly Quenched Metals”, edited by N. J. Grant and B. C. Giessen (MIT Press, Cambridge, Mass., 1976) p. 1.
R. Stoering and H. Conrad, Acta Met 17 (1969) 939.
P. H. Shingu, K. Kobayashi, K. Shimomura and R. Ozaki, J. Japan Inst. Met. 37 (1973) 433.
P. Ramachandrarao, P. Ramarao and T. R. Anantharaman, Z. Metallk. 61 (1970) 471.
H. Matyja, B. C. Giessen and N. J. Grant, J. Inst. Met. 96 (1968) 30.
P. Ramachandrarao, M. Laridjani and R. W. Cahn, Z. Metallk. 63 (1973) 43.
M. H. Burden and H. Jones, J. Inst. Met. 98 (1970) 249.
T. Owadano, N. Ofuch and K. Yusa, Diffusion Data 5 (1971) 614.
D. B. Williams and J. W. Edington, J. Mater. Sci. 12 (1977) 126.
Idem, ibid. 13 (1978) 1356.
M. G. Scott, M. Kijek and H. Matyja, ibid. 13 (1978) 1354.
M. R. Plichta, J. H. Perpezko, H. I. Aarsonson and W. F. Lange III, Acta Met. 28 (1980) 1040.
T. Z. Kattamis and M. C. Flemings, Metall. Trans. 1 (1970) 1449.
M. Hillert, “Solidification and Casting of Metals” (The Metals Society, London, 1979) p. 81.
M. G. Scott and J. A. Leake, Acta Met. 23 (1975) 503.
G. V. S. Sastry, K. K. Bariar, K. Chattopadhyay and P. Ramachandra Rao, Z. Metallk. 71 (1980) 756.
M. El-Boragy, R. Szepan and K. Schubert, J. Less Common Met. 29 (1972) 133.
Author information
Authors and Affiliations
Additional information
On leave at Carnegie-Mellon University, Pittsburgh, PA, USA.
Rights and permissions
About this article
Cite this article
Singh, R.K., Chattopadhyay, K., Lele, S. et al. Impact of substrate temperature on rapid solidification of an Al-Cu eutectic alloy. J Mater Sci 17, 1617–1622 (1982). https://doi.org/10.1007/BF00540786
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00540786