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http://dx.doi.org/10.12656/jksht.2016.29.5.209

Effect of Nb Contents and Processing Parameters on Dynamic Recrystallization Behavior of 0.15C-0.2Si-0.5Mn Low-Carbon Steels  

Lee, Sang-In (Department of Materials Science and Engineering Seoul National University of Science and Technology)
Seo, Ha-Neul (Department of Materials Science and Engineering Seoul National University of Science and Technology)
Lee, Jae-Seung (Pohang Research Lab, Technical Research Laboratories, POSCO)
Hwang, Byoungchul (Department of Materials Science and Engineering Seoul National University of Science and Technology)
Publication Information
Journal of the Korean Society for Heat Treatment / v.29, no.5, 2016 , pp. 209-215 More about this Journal
Abstract
In this study, the effect of Nb contents and processing parameters on dynamic recrystallization behaviour of 0.15C-0.2Si-0.5Mn low-carbon steels was investigated. Three kinds of steel specimens with different Nb contents were fabricated and then high-temperature compressive deformation test was conducted by varying reheating temperature (RT), deformation temperature (DT), and strain rate (SR). The Nb2 and Nb4 specimens containing Nb had smaller prior austenite grain size than the Nb0 specimens, presumably due to pinning effect by the formation of carbides and carbonitrides precipitates at austenite grain boundaries. The high-temperature compressive deformation test results showed that dynamic recrystallization behavior was suppressed in the specimens containing Nb as the strain rate increased and deformation temperature decreased because of pinning effect by precipitates, grain boundary dragging effects by solute atoms, although the compressive stress increased with increasing strain rate and decreasing deformation temperature.
Keywords
dynamic recrystallization behavior; low-carbon steels; reheating temperature; deformation temperature; strain rate;
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Times Cited By KSCI : 4  (Citation Analysis)
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1 J. K. Choi, D. H. Seo, J. S. Lee, K. K. Um and W. Y. Choo, ISIJ International, 43(5), 746 (2003).   DOI
2 S. W. Lee, D. H. Seo and W. Y. Choo, J. Korean Inst. Met. Mater., 36 (1998) 1966.
3 B. Eghbali and A. Abdollah-Zadeh, Materials and Design, 28 (2007) 1021.   DOI
4 O. Kwon and K. J. Lee, J. Korean Inst. Met. Mater., 36 (1998) 1866.
5 B. Karthik, R. Veerababu and D. V. V. Satyanarayana, Metals and Materials International, 22 (2016) 413.   DOI
6 K. J. Irvine, F. B. Pickering and T. Gladman, Journal of The Iron and Steel Institute, 205 (1967) 161.
7 K. Dou, L. Meng, Q. Liu, B. Liu and Y. Huang, Metals and Materials International, 22 (2016) 349.   DOI
8 N. Lsasti, D. Jorge-Badiola, L. M. Taheri and P. Uranga, Metals and Materials International, 20 (2014) 807.   DOI
9 R. Shukla, S. K. Ghosh, D. Chakrabarti and S. Chatterjee, Metals and Materials International, 21 (2015) 85.   DOI
10 T. Gladman and D. Dulieu, Metal Science, 8 (1974) 167.   DOI
11 T. Gladman, I. D. McIvor and F. B. Pickering, Journal of The Iron and Steel Institute, 209 (1971) 380.
12 J. J. Jonas and I. Weiss, Metal Science, 13 (1979) 238.   DOI
13 E. A. Simielli, S. Yue and J. J. Jonas, Metallurgical Transactions A, 23 (1992) 597.   DOI
14 M. J. Luton, R. Dorvel and R. A. Petkovic, Metallurgical Transactions A, 11 (1980) 411.   DOI
15 F. Boratto, R. Barbosa, S. Yue and J. J. Jonas, International Conference on Physical Metallurgy of Thermomechanical Processing of Steels and Other Metals, THERMEC-88, 1 (1988) 383.
16 K. B. Kang, O. Kwon, W. B. Lee and C. G. Park, Scripta Meterialia, 36 (1997) 1303.   DOI
17 C. Zener and J. H. Holloman, J. Appl. Phys., 15 (1944) 22.   DOI
18 O. Kwon and A. J. DeArdo, Acta Metall., 39 (1991) 529.   DOI
19 B. Eghbali, Materials Science and Engineering A, 527 (2010) 3402.   DOI
20 S. H. Cho, M. S. Oh, C. Y. So and Y. C. Yoo, J. Korean Inst. Met. Mater., 33 (1995) 544.