The crystal growth of silicon in Al-Si alloys

Journal of Materials Science - Tập 20 - Trang 1961-1975 - 1985
K. F. Kobayashi1, L. M. Hogan1
1Department of Mining and Metallurgical Engineering, University of Queensland, St. Lucia, Australia

Tóm tắt

Some crystallographic observations of primary silicon and unmodified eutectic silicon in aluminium-silicon alloys are summarized and used to support the theory that sodium modification is due to the poisoning of active growth centres. The implications of endogenous growth in unmodified aluminium-silicon sand castings are explored and mechanisms are proposed for the flake-fibre transition in chill-modified and sodium-modified alloys.

Tài liệu tham khảo

H. A. H. Steen andA. Hellawell,Acta Metall. 20 (1972) 363. D. C. Jenkinson andL. M. Hogan,J. Crystal Growth 28 (1975) 171. M. G. Day andA. Hellawell,Proc. R. Soc. 305 (1968) 473. H. Fredriksson, M. Hillert andN. Lange,J. Inst. Metals 101 (1973) 285. S. C. Flood andJ. D. Hunt,Metal Sci. 15 (1981) 287. A. Hellawell,Prog. Mater. Sci. 15 (1) (1970). A. Moore andR. Elliott: ISI Pubn. 110, “Solidification of Metals” (Iron and Steel Institute, London, 1968) p. 167. H. A. H. Steen andA. Hellawell,Acta Metall. 23 (1975) 529. A. J. McLeod, L. M. Hogan, C. M. Adam andD. C. Jenkinson,J. Crystal Growth 19 (1973) 301. C. B. Kim andR. W. Heine,J. Inst. Metals 92 (1963–64) 367. K. Kobayashi, P. H. Shingu andR. Ozaki,J. Mater. Sci. 10 (1975) 290. E. Billig,Proc. R. Soc. (A) 229 (1955) 346. R. S. Wagner,Acta Metall. 8 (1960) 57. D. R. Hamilton andR. G. Seidensticker,J. Appl. Phys. 31 (1960) 1165. R. E. Reed-Hill, “Physical Metallurgy Principles” (Van Nostrand, New York, 1964) p. 376. A. A. Chernov,J. Crystal Growth 24/25 (1974) 11. D. H. St. John andL. M. Hogan,ibid. 46 (1979) 387. V. DeL. Davies,J. Inst. Metals 93 (1964–5) 10. K. Kobayashi andL. M. Hogan,Phil. Mag. 40 (1979) 399. S. Ino,J. Phys. Soc. Japan 27 (1969) 941. V. DeL. Davies andJ. M. West,J. Inst. Metals 92 (1963–64) 175. J. D. Bernal, in “Liquids: Structure, Properties, Solid Interaction”, edited by T. J. Hughel (Elsevier, New York, 1965) p. 25. K. Kobayashi, P. H. Shingu andR. Ozaki, in “Solidification and Casting of Metals” (Metals Society, London, 1979) p. 101. E. M. Pilarski, PhD thesis, University of Wisconsin, (1969). B. Touloui andA. Hellawell,Acta Metall. 24 (1976) 565. S. M. D. Glenister andR. Elliott,Metal Sci. April (1981) 181. R. Elliott andS. M. D. Glenister,Acta Metall. 28 (1980) 1489. R. Elliott, “Eutectic solidifcation Processing” (Butterworths, London, 1983) p. 168. R. M. Jordan andJ. D. Hunt,Met. Trans. 2 (1971) 3401. Idem, ibid. 3 (1972) 1385. M. Shamuzzoha andL. M. Hogan, University of Queensland. Research in progress. W. A. Tiller, in “Liquid Metals and Solidification” (American Society for Metals, Cleveland, 1958) p. 276. C. W. Haworth andE. P. Whelan,J. Aust. Inst. Metals 10 (1965) 184. K. A. Jackson, “Liquid metals and solidification” (American Society for Metals, Cleveland, Ohio, 1958) p. 174. Y. Tsumura,Nippon Kinzoku Gakkai-Si 21 (1957) 69.