Abstract
A constitutive model incorporating the influence of strain developed based on the Arrhenius equation by considering the variation of material constants as a fifth polynomial function of strain is presented. Materials constants are fit to data from hot compression tests of 70Cr3Mo steel used for back-up roll at the temperatures from 1173 to 14 73 K and strain rates from 0.01 to 10 s−1 by using a Gleeble-1500D thermo-mechanical simulator. The developed constitutive model is then used to predict the flow stress under all the tested conditions. The statistical parameters of correlation coefficient and average absolute relative error are used to analyze the predictable efficiency and the values are 0. 997 and 3.64%, respectively. The results show a good agreement between experimental stress and predicted stress.
Similar content being viewed by others
References
Kang X, Li D, Xia L, et al. Development of Cast Steel Back-Up Roll [J]. International Journal of Cast Metals Research, 2006, 19(1): 66.
Rad H R B, Monshi A, Idris M H. Premature Failure Analysis of Forged Cold Back-Up Roll in a Continuous Tandem Mill [J]. Materials and Design, 2011, 32: 4376.
Voronenko B I. Compositions and Heat Treatment of Modern Roll Steels [J]. Metal Science and Heat Treatment, 1995, 37: 450.
PAN Jian-sheng, LI Yong-jun, LI Ding-qiang. The Application of Computer Simulation in the Heat-Treatment Process of a Large-Scale Bearing Roller [J]. Journal of Materials Processing Technology, 2002, 122(2/3): 241.
LI Yong-jun, PAN Jian-sheng, GU Jian-feng, et al. Computer Simulation of 70Cr3Mo Steel Large-Scale Bearing Roller’s Heating Process for Hardening [J]. Heat Treatment of Metals, 2000(9): 34 (in Chinese).
HU Yi, XIAO Fu-ren, QIAO Gui-ying, et al. Effect of Microstructure on Contact Fatigue Property of Steel 70Cr3Mo [J]. Journal of Yanshan University, 2000, 24(1): 55 (in Chinese).
McQueen H J, Ryan N D. Constitutive Analysis in Hot Working [J]. Materials Science and Engineering, 2002, 322A(1): 43.
Mirzadeh H, Cabrera J M, Prado J M, et al. Hot Deformation Behavior of a Medium Carbon Microalloyed Steel [J]. Materials Science and Engineering, 2011, 528A(10): 3876.
LIN Yong-cheng, CHEN Ming-song, ZHANG Jun. Modeling of Flow Stress of 42CrMo Steel Under Hot Compression [J]. Materials Science and Engineering, 2009, 499A(1/2): 88.
Mandal S, Rakesh V, S ivaprasad P V, et al. Constitutive Equations to Predict High Temperature Flow Stress in a Ti-Modified Austenitic Stainless Steel [J]. Materials Science and Engineering, 2009, 500A(1/2): 114.
Krishnan S A, Phaniraj C, Ravishankar C, et al. Prediction of High Temperature Flow Stress in 9Cr-1Mo Ferritic Steel During Hot Compression [J]. International Journal of Pressure Vessels and Piping, 2011, 88(11): 501.
Samantaray D, Mandal S, Bhaduri A K. Constitutive Analysis to Predict High-Temperature Flow Stress in Modified 9Cr-1Mo (P91) Steel [J]. Materials and Design, 2010, 31(2): 981.
LI Hong-ying, WEI Dong-dong, HU Ji-dong, et al. Constitutive Modeling for Hot Deformation Behavior of T24 Ferritic Steel [J]. Computational Materials Science, 2012, 53(1): 425.
Srinivasulu S, Jain A. A Comparative Analysis of Training Methods for Artificial Neural Network Rainfall-Runoff Models [J]. Applied Soft Computing, 2006, 6(3): 295.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ren, Fc., Chen, J. Modeling Flow Stress of 70Cr3Mo Steel Used for Back-Up Roll During Hot Deformation Considering Strain Compensation. J. Iron Steel Res. Int. 20, 118–124 (2013). https://doi.org/10.1016/S1006-706X(13)60206-X
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1016/S1006-706X(13)60206-X