|
|
|
| CHANGES IN COMPOSITION DURING A. C. ESR——Ⅰ. Theoretical Development |
| WEI Jiho (Wei Chi-ho)(Xi'an Institute of Metallurgy and Construction Engineering); MITCHELL A. (University of British Columbia; Vancouver; B. C. ; Canada) (Manuscript received 27 May; 1983) |
|
Cite this article:
WEI Jiho (Wei Chi-ho)(Xi'an Institute of Metallurgy and Construction Engineering); MITCHELL A. (University of British Columbia; Vancouver; B. C. ; Canada) (Manuscript received 27 May; 1983). CHANGES IN COMPOSITION DURING A. C. ESR——Ⅰ. Theoretical Development. Acta Metall Sin, 1984, 20(5): 387-405.
|
|
|
Abstract Precise control of chemical composition and uniform distribution of alloying elements are the requirements to obtain final products in high quality, Up to now, the problem of how to effectively control the changes in chemical composition and the redistribution of alloying elements during the remelting process is still not well resolved. The general problems introduced into the modelling of ESR chemical reac tions by virtue of the various reactions stoichiomctries are discussed. In particular it is described the difficulties in using simplified reaction schemes such as the Mn/FeO/Fe/MnO exchange as the basis for modelling systems in which as many as eight separate reactions may require simultaneous equilibrium solutions. Based upon the penetration and film theories, a scheme of describing such systems is developed. The new model, theoretically, may be applied to any ESR system, i. e. to the ESR process of any steels and alloys, and the changes in composition of both metal and slag phases may be more precisely predicted. The theoretical model has been solved. The parameters for the model are discussed and determined.
|
|
Received: 18 May 1984
|
1 Hawkins, R. J. ; Meherali, S. G. ; Davies, M. W. , J. Iron Steel Inst. , 209 (1971) , 646．
2 Hawkins, R. J. ; Swinden, D. J. ; Pocklington, D. N. , Electroslag Relining, The Iron & Steel Inst. , London, 1973, p. 21．
3 Knights, C. F. , Perkins, R. , ibid. , p. 35．
4 Hoyle, G. ; Dewsnap, P. ; Salt, D. J. ; Barrs, E. M. , Electro-Slag Relining Technology, BISRA, Open Rep. No. MG/A/416/66/1966, London, Br. Iron & Steel Res. Association.
5 Davis, M. W. ; Hawkins, R. J. ; Smith, P. N. , Steel Times, 197 (1969) , 237; 353．
6 Pateisky, G. ; Biele, H. ; Fleisher, H. J. , J. Vac. Sci. Technol. , 9 (1972) , 1318．
7 Schmidt, M. , Private communication.
8 Elienne, M. , Ph. D. Thesis, University of British Columbia, 1970．
9 Etienne, M. ; Mitchell, A. , Electr. Furnace Conf. Proc. , 28 (1970) , p. 28．
10 Fraser, M. E. , Ph. D. Thesis, University of British Columbia, 1974．
11 Fraser, M. E. ; Mitchell, A. , Ironmaking Steelmaking, 3 (1976) , №5, 279; 288．
12 Schwerdtfeger, K. ; Wepner, W. ; Pateisky, G. , ibid. , 5 (1978) , №3, 135．
13 Cooper, C. K. , Ghosh, D. : Kay, D. A. R. ; Pomfret, R. J. , Electr. Furnace Conf. Proc. , 28 (1970) , 8．
14 #12
15 Mitchell, A. ; Szekely, J. ; Elliott, J. F. , Electroslag Refining, The Iron Steel Inst. , 1973, London, p .3．
16 Mitchell, A. , Int. Symp. on Metallurgical Slags, C. I. M. M. , Halifax N. S. , August, 1980, Section 7．
17 Mitchell, A. , ES & VA Remelting, to be published.
18 Allibert, M. ; Wadier, J. F. ; Mitchell, A. , Ironmaking Steelmaking, 5 (1978) , №5, 211．
19 Wei Chi-ho (魏季和); Mitchell, A. , Deoxidation in ESR, to be published.
20 Miska, H. , Dissertation, Technical University Ciausthal, 1971．
21 Mitchell, A. ; Jackson, R. O. ; Ballantyne, A. S. , Proc. 4th Int. Symp. on ESR Processes, ISIJ, Tokyo, 1973, p. 1．
22 Chipman, J. , Basic Open Hearth Steelmaking, Ed. Derge, G. , 3rd ed. , AIME, 1964, p. 531．
23 Elliott, J. F. ; Gleiser, M. ; Ramakrishna, V. , Thermochemistry for Steelmaking, Vol. Ⅱ, Addison-Wesley, USA, 1963, p. 621, 702．
24 Sigworth, G. K. ; Elliott, J. F. , Met. Sci. J. , 8 (1974) , 298．
25 Kusuhiro, M. ; Uchida, A. ; Tagami, T. ; Wasai, Y. , Proc. 3rd Int. Iron & Steel Congress, April, 1978, Chicago, Illinois, ASM and Iron & Steel Soc. of AIME, Ohio, 1979, p. 266．
26 Schenck, H. ; Steinmetz, E. , Wirkungsparmeter von Begleitelementen Flussiger Eisenlosungen und Gegenseitigen Beziehungen, 2． Aufl. Verlag Stahl und Eisen, Dusseldorf, 1968．
27 Korousic, B. , Berg-und Huttnmannische Monatshefte, 122 (1977) , №7, 287．
28 Kubaschewski, O. ; Alcock, C. B. , Metallurgical Thermochemistry, 5th ed. , Pergamon Press, 1979, p. 381．
29 Turkdogan, E. T. , Physical Chemistry of High Temperature Technology, Academic Press, 1980, p. 381．
30 Mclean, A. ; Ward, R. G. , J. Iron Steel Inst. , 204 (1966) , 8．
31#12
32 Jackson, R. O. , M. A. Sc. Thesis, University of British Columbia, 1971．
33 Mitchell, A. ; Joshi, S. , Metall. Trans. , 4 (1973) , 631．
34 Mellberg, P. O. , Proc. 4th Int. Symp. on ESR Processes, ISIJ, Tokyo, 1973, p. 13．
35 Dilawari, A. H. ; Szekely, J. , Metall. Trans. , 8B (1977) , 227．
36 Dilawari, A. H. ; Szekely, J. ibid. , 9B (1978) , 77．
37 Choudhary, M.; Szekely, J. , ibid, 11B (1980) , 439．
38 Zhmoidin, G. I. , Izv. Akad. Nauk. SSSR Met. , (1971) , №2, 29; (1972) , №4, 60．
39 Ling Yang; Derge, G. , Physical Chemistry of Process Metallurgy, Part Ⅰ, Intersciencc Publ. , New York, 1961, p. 503．
40 Edwards, J. B. ; Hucke, E. E. ; Martin, J. J. , Metall. Rev. 13 (1968) . №120． 1-12; 13-28．
41 Morgan, D. W. ; Kitchener, J. A. , Trans. Faraday Soc. , 50 (1954) , 51．
42 Darken, L. S. ; Gurry, R. W. , Physical Chemistry of Metals, McGraw-Hill, 1953, p. 484．
43 Duckworth, W. E. ; Hoyle, G. , Electroslag Refining, Chapman & Hall, London, 1969, pp. 40-44．
44 Mitchell, A. ; Joshi, S. , Metall. Trans. , 3 (1972) , 2306．
45 Hara, S. ; Ogino, K. , Int. Symp. on Metallurgical Slags, C. I. M. M. , Halifax, N. S. , August, 1980, Section 7．
46 Geiger, G. H. ; Poirier, D. R. , Transport Phenomena in Metallurgy, Addison-Wesley Publ. , 1973(中译本:俞景禄;魏季和译,冶金中的传热传质现象,冶金工业出版社,1981) ,p.18．
47 Joshi, S. , Ph. D. Thesis, University of British Columbia, 1971．
48 #12
49 Turkdogan, E. T. , BOF Steelmaking, Vol. Ⅱ (Theory), Chap. Ⅳ, Eds. Pehlke, R. D. ; Porter, W. F. ; et al. , AIME, New York, 1975, p. 45． |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
