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Kinetics of Austenite Recrystallization during the Annealing of Cold-rolled Fe-Mn-Al-C Steel | ||
| Iranian Journal of Materials Forming | ||
| دوره 7، شماره 1، تیر 2020، صفحه 84-91 اصل مقاله (786.83 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22099/ijmf.2020.35660.1145 | ||
| نویسندگان | ||
| M. A. Sohrabizadeh؛ Y. Mazaheri* ؛ M. Sheikhi | ||
| Department of Materials Engineering, Bu-Ali Sina University, Hamedan, Iran | ||
| چکیده | ||
| In the current study, the recrystallization behavior of 75% cold-rolled Fe-22Mn-10Al-1.4C steel during annealing at 750, 770, 790, 810, and 830°C was studied. X-ray diffraction patterns and optical microscopy were used to characterize microstructures. The Vickers Micro-hardness test was used to characterize recrystallization kinetics during annealing. Johnson-Mehl-Avrami-Kolmogorov (JMAK) model was used to evaluate the experimental data. The as-homogenized microstructure illustrated only austenite with a high fraction of annealing twins, and austenite to martensite phase transformation was not observed after quenching at a high temperature and also until high thickness reduction. Avrami exponent was decreased from 0.76 to 0.42, with increasing the annealing temperature from 750 to 830°C. The activation energy value was determined to be ~175 kJ/mol, which was slightly higher than the diffusion activation energy of carbon in austenite. | ||
| کلیدواژهها | ||
| Fe-Mn-Al-C steel؛ Recrystallization kinetics؛ JMAK model | ||
| مراجع | ||
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[1] Y. P. Li, R. B. Song, E. D. Wen, F. Q. Yang, Hot deformation and dynamic recrystallization behavior of austenite-based low-density Fe-Mn-Al-C steel, Acta Metallurgica Sinica 29, no. 5 (2016) 441-449. [2] Y. Sutou, N. Kamiya, R. Umino, I. Ohnuma, K. Ishida, High-strength Fe–20Mn–Al–C-based Alloys with Low Density, ISIJ International 50, no. 6 (2010) 893-899. [3] S. S. Sohn, K. Choi, J. H. Kwak, N. J. Kim, S. Lee, Novel ferrite-austenite duplex lightweight steel with 77% ductility by transformation induced plasticity and twinning induced plasticity mechanisms, Acta Materialia 78 (2014) 181-189. [4] I. S. Kalashnikov, O. Acselrad, T. Kalichak, M. S. Khadyyev, L. C. Pereira, Behavior of Fe-Mn-Al-C steels during cyclic tests, Journal of Materials Engineering and Performance 9, no. 3 (2000) 334-337. [5] P. R. S. Jackson, G. R. Wallwork, High temperature oxidation of iron-manganese-aluminum based alloys, Oxidation of Metals 21, no. 3-4 (1984) 135-170. [6] K. T. Luo, P. W. Kao, D. Gan, Low temperature mechanical properties of Fe28Mn5Al1C alloy, Materials Science and Engineering: A 151, no. 1(1992) 15-18. [7] O. Grässel, G. Frommeyer, C. Derder, H. Hofmann, Phase transformations and mechanical properties of Fe-Mn-Si-Al trip-steels, Le Journal de Physique IV 7, no. C5 (2007) 383-388. [8] M. M. Karkehabadi, A. Kermanpur, A. Najafizadeh, K. Kiani, Prediction of mechanical properties of twip steels using artificial neural network modeling, International Journal of Iron & Steel Society of Iran 15, no. 2 (2018) 27-37. [9] J. D. Yoo, K. T. Park, Microband-induced plasticity in a high Mn-Al-C light steel, Materials Science and Engineering: A 496, no. 1-2, (2008) 417-424. [10] Y. Lü, D. A. Molodov, G. Gottstein, Recrystallization kinetics and microstructure evolution during annealing of a cold-rolled Fe-Mn-C alloy, Acta Materialia 59, no. 8 (2011) 3229-3243. [11] O. A. Zambrano, Stacking fault energy maps of Fe–Mn–Al–C–Si steels: effect of temperature, grain size, and variations in compositions, Journal of Engineering Materials and Technology 138, no. 4 (2016). [12] J. Burke, The kinetics of phase transformations in metals, Pergamon Press INC., 1965. [13] V. Torabinejad, A. Zarei-Hanzaki, S. Moemeni, “An analysis to the kinetics of austenite recrystallization in Fe-30Mn-5Al steel, Materials and Manufacturing Processes 28, no. 1 (2012) 36-41. [14] A. Rollett, G. S. Rohrer, J. Humphreys, Recrystallization and related annealing phenomena: third edition, Elsevier, 2017. [15] X. Tian, R. Tian, X. Wei, Y. Zhang, “Effect of al content on work hardening in austenitic Fe-Mn-Al-C alloys, Canadian Metallurgical Quarterly 43, no. 2 (2004) 183-192. [16] S. S. Sohn, H. Song, B-Ch Suh, J-H Kwak, B-J Lee, N. J. Kim, S. Lee, Novel ultra-high-strength (ferrite + austenite) duplex lightweight steels achieved by fine dislocation substructures (Taylor lattices), grain refinement, and partial recrystallization, Acta Materialia 96 (2015) 301-310. [17] S. Chen, R. Rana, A. Haldar, R. K. Ray, Current state of fe-mn-al-c low density steels, Progress in Materials Science 89 (2017) 345-391. [18] G. R. Speich, V. A. Demarest, R. L. Miller, Formation of austenite during intercritical annealing of dual-phase steels, Metallurgical and Materials Transactions A 12, no. 8 (1981) 1419-1428. [19] R. A. Vandermeer, R. A. Masumura, B. B. Rath, Microstructural paths of shape-preserved nucleation and growth transformations, Acta Metallurgica et Materialia 39, no. 3 (1991) 383-389. [20] Y. Mazaheri, A. Kermanpur, A. Najafizadeh, A. G. Kalashami, Kinetics of Ferrite Recrystallization and Austenite Formation During Intercritical Annealing of the Cold-Rolled Ferrite/Martensite Duplex Structures, Metallurgical and Materials Transactions A 47, no. 3 (2016) 1040-1051. [21] C. A. Wert, Diffusion coefficient of c in α -iron, Physical Review 79, no. 4 (1950) 601-605. | ||
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