Abstract
Paint baking treatment was carried out in a silicon oil bath at 170 °C for 20 min for Si-Al-Mn TRIP Steel sheet with different prestrains, and effect of prestrain on microstructures and properties was studied before and after baking. The results show that with the increasing of prestrain amount during prestraining and baking, the volume fraction of retained austenite decreases, and the volume fraction of martensite and bainite increases as well as yield strength increases; as prestrain ranges from 0 to 4%, the baking-hardening (BH) value increases; while the prestrain ranges from 4% to 16%, the BH value decreases; when the prestrain amount is 4%, the highest BH value is about 70 MPa for Si-Al-Mn TRIP steel sheet with niobium, which displays excellent baking-hardening behavior.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ushilda K. Rencent Developments in Steel Sheets [J]. Scandinavian Metall, 1999, 28: 33.
Hiroshi M, Fusato K, Kohei H. Metallurgy of Continuously Annealed High Strength TRIP Steel Sheet [J]. Steel Research, 2002, 73(6): 211.
Srivastava A K, Bhattacharjee D, Jhab G. Microstructural and Mechanical Characterization of C-Mn-Al-Si Cold-Rolled TRIP-Aided Steel [J]. Materials Science and Engineering, 2007, A445–446: 549.
TANG Zheng-you, DING Hua, DU Lin-xiu, et al. Study on Microstructures and Mechanical Properties of Si-Al-Mn TRIP Steel With Niobium [J]. Journal of Materials Science and Technology, 2007, 23(6): 790.
Manabu T. Metallurgical Aspect of Sheet Steels for Automobiles [J]. Materials Science and Technology, 2004, 74(5): 459.
Sakata K, Matsuoka S, Sato K. Highly Formable Sheet Steel for Automobile Through Advanced Microstructure Control Technology [J]. Kawasaki Steel Technical Report, 2003, (48): 37.
Rusinek A, Klepaczko J R. Experiments on Heat Generated During Plastic Deformation and Stored Energy for TRIP Steels [J]. Materials and Design, 2008, 48(4): 1.
Lee C G, Kim S J, Song B H, et al. Effect of Heat Treatment on Formability in 0.15C-1. 5Si-1.5Mn Multiphase Cold-Rolled Steel Sheet [J]. Metals and Meterials International, 2002, 8 (5): 435.
LI L, De Cooman B C, Wollants P, et al. Effect of Aluminum and Silicon on Transformation Induced Plasticity of the TRIP Steel [J]. J Mater Sci Technol, 2004, 20(2): 135.
Kaneko S, Matsuoka S, Sakata K. Strengthening Mechanism in Hot-Rolled High Strength Sheet With Increase in Tensile Strength Induced by Bake Hardening [J]. Journal of the Iron and Steel Institute of Japan, 2003, 89(10): 1057.
Kaneko S, Hiramoto J, Ishikawa T. Development of Hot-Rolled Sheet Steel With Significantly Increased Tensile Strength Induced by Strain Age Hardening [J]. Kawasaki Steel Technical Report, 2003, (35): 28.
Bleck W, Frehn A, Kechagias E, et al. Control of Micro-structure in TRIP Steels by Niobium [J]. Materials Science Forum, 2003, 426–432: 43.
CHEN Yu, TANG Guo-yi, TIAN Hao-yang, et al. Microstructures and Mechanical Properties of Nb-Ti Bearing Hot-Rolled TRIP Steels [J]. J Mater Sci Technol, 2006, 22(6): 759.
Girault E, Jacques P, Harlet P. Metallographic Methods for Revealing the Multiphase Microstructure of TRIP-Assisted Steels [J]. Mater Char, 1998, 40(2): 111.
Furnemont Q, Kempf M, Jacques P J, et al. On the Measurement of the Nanohardness of the Constitutive Phases of TRIP-Assisted Multiphase Steels [J]. Materials Science and Engineering A, 2002, 328(26): 26.
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation Item: Item Sponsored by National Natural Science Foundation of China (50527402)
Rights and permissions
About this article
Cite this article
Tang, Zy., Ding, H., Ding, H. et al. Effect of prestrain on microstructures and properties of Si-Al-Mn TRIP steel sheet with niobium. J. Iron Steel Res. Int. 17, 59–65 (2010). https://doi.org/10.1016/S1006-706X(10)60087-8
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1016/S1006-706X(10)60087-8