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http://dx.doi.org/10.3795/KSME-A.2003.27.3.464

Design of Rolling Pass Schedule utilizing Grain Refinement by Strain Accumulation  

Park, Jong-Jin (홍익대학교 기계·시스템디자인공학과)
Lee, Sang-Joo (홍익대학교 대학원)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.27, no.3, 2003 , pp. 464-471 More about this Journal
Abstract
Among various methods to acquire high strength in plain carbon steel, the mettled of grain refinement by controlling thermo-mechanical processing parameters has gained a great attention if steel rolling industries. In the present study, three different rolling pass schedules are proposed to obtain fine grains which are based on combined results of recrystallization modelling, finite element analysis and experiment. Since meta-dynamic or dynamic recrystallization has been found to be very effective in producing fine grains, reduction ratio and interpass time in the proposed rolling pass schedules were determined in order to invoke such recrystallization as often as possible.
Keywords
Dynamic Recrystallization; Hot Rolling; Static Recovery; Grain Refinement; Austenite Grain Size; Process Design;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Kwon. O. L 1999. 'Manufacturing Technologies and Applications of steel Strip Products,' Proc. 3rd Rolling Symposium, Opening Lecture. pp. 10-21
2 Attwood. B. and Miner. R. E.. 1998. 'Competitive Material Threats and Opportunities,' Steel Rolling '98, Opening Lecture, ISIJ. pp. 9-18
3 Shin. S. C. 1999. 'Recent Trend in Hot Rolling Technology of Steels.' Proc. 3rd Rolling Symposium, Opening Lecture. pp. 3-9
4 POSCO Technical Research Laboratories. 2001. 'Development of High Strength Structural Steel with Fine Grain(III).'
5 POSCO Technical Research Laboratories. 2000. 'Development of High Strength Structural Steel with Fine Grain(II).'
6 Sellars, C. M., 1980, 'Hot Rolling and Forming Processes.' edited by C. M. Sellars and G. J. Davies, Met. Soc., London
7 Sellars. C. M., 1990, 'Modeling Microstructural Development during Hot Rolling,' Material Sci. & Tech. Vol.6. pp. 1072-81
8 Hernandez, C. A. and Medina. S. F., 1996. 'Modelling Austenite Flow Curves in Low Alloy and Microalloyed Steels,' Acta. Mater., Vol.44. No.1. pp. 155-163   DOI   ScienceOn
9 Petkovic. R. A., Luton, M. J. and Jonas. J. J., 1977, 'Flow Curves and Softening Kinetics in High Strength Low Alloy Steels.' the Hot Deformation of Austenite (Edited by Ballance. J. B.), AIME New York, pp. 68-75
10 Hernandez, C. A. and Medina. S. F., 1992, 'Modelling of the Dynamic Recrystallization of Austenite in Low Alloy and Microalloyed Steels,'Mem. Scient. Revue Metall., Vol.66, pp. 217-225
11 Jonas, J. J. 1990. 'Dynamic Recrystallization in Hot Strip Mills,' In Recrystallization '90 (Edited by Chandra, T.), TMS-AIME. Warrendale. PA, pp. 27-36
12 Hong. C. P. and Park. J. J., 2001. 'Design of Rolling Pass Schedule for a Thick Plate by Using Recrystallization Modeling.' Proc. 4th Rolling Symposium. pp. 375-383
13 Djaic, R. A. P. and Jonas, J. J., 1972. 'Static Recrystallization of Austenite between Intervals of Hot Working.' Journal of the Iron and Steel Institute, Vol.210. pp. 256-264
14 Kobayashi S., Oh, S. I. and Altan. T.. 1989. Metal Forming and the Finite Element Method. pp 30-33
15 Isao. K.. 1997. Controlled Rolling and Controlled Cooling. Chijin Shokan Co. pp. 17-54
16 Hong. C. P and Park. J. L 2001. 'Design of Rolling Path Schedule for Refinement of Austenite Grain,' Transactions of the KSME. A. Vol.25. No.11. pp.1844-1853   과학기술학회마을