Correlation between Heat Treatment, Microstructure and Properties of Trip-Assisted Steels

Authors: A. Talapatra, N. R. Bandhyopadhyay, J. Datta

Abstract:

In the present study, two TRIP-assisted steels were designated as A (having no Cr and Cu content) and B (having higher Ni, Cr and Cu content) heat treated under different conditions, and the correlation between its heat treatment, microstructure and properties were investigated. Micro structural examination was carried out by optical microscope and scanning electron microscope after electrolytic etching. Non-destructive electrochemical and ultrasonic testing on two TRIP-assisted steels was used to find out corrosion and mechanical properties of different alter microstructure phase’s steels. Furthermore, micro structural studies accompanied by the evaluation of mechanical properties revealed that steels having martensite phases with higher corrosive and hardness value were less sound velocity and also steel’s microstructure having finer grains that was more grain boundary was less corrosion resistance. Steel containing more Cu, Ni and Cr was less corrosive compared to other steels having same processing or microstructure.

Keywords: TRIP-assisted steels, heat treatment, corrosion, electrochemical techniques, micro-structural characterization, non-destructive (ultrasonic) technique.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1336238

References:

[1] G. Frommeyer and, O. Grassel: High strength TRIP/TWIP super plastic steels: Development, properties, Application, La Revue De, Metallurgie CIT, october, 1998, 1299.
[2] Ultra light steel auto body-advanced vehicle technology (ULSABAVC) overview report, IISI, 2002, p.66,www.worldautoteel.org.
[3] V. F. Zackay, E. R. Parker, D. Fahr and R. Busch: Trans. ASM, 60 (1967), p. 252.
[4] Krüger L, Meyer LW, Brüx U, Frommeyer G & Grässel O Stress-deformation behavior of high manganese (Al, Si) TRIP and TWIP steels. J Phys IV 110: 189-194(2003).
[5] Frommeyer G, Brüx U & Neumann P (2003) Supra-Ductile and High-Strength Manganese-TRIP/TWIP Steels for High Energy Absorption Purposes. ISIJ Int 43:438-446.
[6] Han YS & Hong SH (1997) the effect of Al on mechanical properties and microstructures of Fe32Mn-12Cr-xAl-0.4C cryogenic alloys. Mater Sci Eng A 222:76-83.
[7] Matsumura, O., Sakuma, Y. and Takechi, H. Transactions of the Iron and Steel Institute 27 (1987) 570.
[8] J. R. Challande (M. S. Thesis) UCRL-18475, (1968).
[9] F. J. Padilla (M. S. Thesis) UCRL-19678, (1970).P.J. JAQUES, J. Ladriere, F. Delannay, Metall.Trans.32A, (2001); p.2759.
[10] Khoshnaw F.M., Kheder A.I., Ali F.S.M. (2007): Corrosion behaviour of nitride low alloy steel in chloride solution, Anti-Corrosion Methods and Materials, 54/3,pp.173-179.doi: 10.1108/000355907107486441.
[11] Chen Y.Y., Tzeng H.J., Wei L.I., Shih H.C. (2005): Mechanical properties and corrosion resistance of low-alloy steels in atmospheric conditions containing chloride, Materials Science & Engineering A, 398, pp. 47-59.doi:10.1016/j.msea.2005.02.064.
[12] Turn ball A., Zhou S. (2008): Impact of temperature excursion on stress corrosion cracking of stainless steels in chloride solution, Corrosion Science, Vol. 50, pp. 913-917. doi:10.1016/j.corsci.2008.01.020.
[13] Sadhukhan S., Das K. P., Bandyopadhyay N. R. and Banerjee M. K. Journal of the Institution of Engineers, India, 82 (2001) 65.
[14] Bhadeshia, H. K. D. H. and Honeycomb, R. W. K. Steels: Microstructure and Properties, Elsevier, UK, (2006).
[15] Takechi, H., Matsumura, O., Sakuma, Y. Japan Kokai Tokyo Koho Japan Patent 62,188,729 (1987).
[16] Matsumura, O., Sakuma, Y. and Takechi, H. Transactions of the Iron and Steel Institute 27 (1987) 570
[17] Kim, S. A. and Johnson, W. L., 2007, "Elastic constants and internal friction of martensitic steel, ferritic-pearlitic steel, and α-iron”, Material Science and Engineering A, 452-453, pp 633-639.
[18] Hakan, C.G.and Orkun, B.T., 2005, "Characterization of micro structural phases of steels by sound velocity measurement’, Materials Characterization Vol. 55, pp. 160-166.
[19] R. Prasad, S. Kumar, Journal of Materials Processing and Technology. 42 (1994) 51-59.
[20] C.H. Gür, B.O. Tuncer, Materials Characterization. 55 (2005) 160-166.
[21] V.H.C. de Albuquerque, T.A.A. Melo , D.F. de Oliveira, R.M. Gomes, J.M.R.S. Tavares, Materials& Design, DOI:10.1016/j.matdes.2010.02.010
[22] P. Palanichamy, A. Joseph, T. Jayakumar, Baldev Raj, NDT & E International. 28 (1995) 179-185.
[23] S.A. Kim, W.L. Johnson, Materials Science and Engineering: A. 452-453 (2007) 633-639.