SIMULATION OF MACROSTRUCTURE EVOLUTION IN Ti-(45~48)at%Al ALLOY INGOT

Acta Metall Sin

2006, Vol. 42

Issue (4): 437-442 DOI:

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SIMULATION OF MACROSTRUCTURE EVOLUTION IN Ti-(45~48)at%Al ALLOY INGOT

D R Liu

哈尔滨工业大学材料科学与工程学院

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D R Liu. SIMULATION OF MACROSTRUCTURE EVOLUTION IN Ti-(45~48)at%Al ALLOY INGOT. Acta Metall Sin, 2006, 42(4): 437-442 .

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Abstract ABSTRACT Grain structure modeling of Ti- (45~48) at% Al alloy ingots has been carried out by using a new cellular automaton method coupled with macroscopic heat transfer calculation. Cells are divided into primary and peritectic ones. Different cells take the different solidification path. By the new method, the formation of peritectic phases can be shown graphically throughout solidification. The formation of shrinkage cavity at the top of the ingot is included in the calculation. A special-moving-allocation technique is designed to minimize the computation costs and memory size associated with a large number of cells. The potentiality of the present model is demonstrated by comparing the simulated results with the experimental one. The influences of convection and initial alloy composition on the grain structures are studied. The mechanisms producing these results are discussed. The simulated results indicate that the size of equiaxed zone increases with increasing the convection coefficient and alloy composition. And the number of peritectic phases decreases as the alloy composition decreases.

Key words: Ti- (45~48) at% Al alloy ingot peritectic phase solidification cellular automaton grain structure si

Received: 20 June 2005

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2006/V42/I4/437

[1] Brown S G R, Spittle J A. Mater Sci Technol, 1989; 5: 362
[2] Rappaz M, Gandin C A. Ada Metall Mater, 1993; 41: 345
[3] Gandin C A, Rappaz M. Acta Metall Mater, 1994; 42: 2233
[4] Gandin C A, Charbon C. ISIJ Int, 1995; 35: 651
[5] Gandin C A, Desbiolles J L, Rappaz M, Thevoz P. Metall Mater Trans, 1999; 30A: 3153
[6] Kurz W, Giovanola B, Trivedi R. Acta Metall, 1986; 823
[7] Du Q, Li D Z, Li Y Y. J Mater Sci Technol, 2000; 16: 568
[8] Li D Z, Du Q, Hu Z Y, Li Y Y. Acta Metall Sin, 1999; 35: 1201 (李殿中,杜强,胡志勇,李依依．金属学报,1999;35:1201)
[9] Xu Q Y, Feng W M, Liu B C, Xiong S M. Acta Metall Sin, 2002; 38: 799 (许庆彦,冯伟明,柳百成,熊守美．金属学报, 2002;38(8): 799)
[10] Bosze W P, Trivedi R. Metall Trans, 1974; 5: 511
[11] Wang T M. PhD Dissertation, Dalian University of Science and Technology, 2000 (王同敏．大连理工大学博士学位论文, 2000)
[12] Jacot A, Maijer D, Cockcroft S. Metall Mater Trans, 2000; 31A: 2059
[13] Jung I S, Kim M C, Lee J H, Oh M H, Wee D M. Inter- metallics, 1999; 7: 1247
[14] Su Y Q, Liu C, Li X Z, Guo J J, Li B S, Jia J, Fu H Z. Intermetallics, 2005; 13: 267
[15] Santos C A, Quaresma J M V, Garcia A. J Alloys Compd. 2001; 319: 174
[16] Gu J P, Beckermann C. Metall Mater Trans, 1999; 30A: 1357

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