Analyses on the Flow Stress of an Al-Mg Alloy During Dynamic Recovery
Source abstract
Abstract
A comprehensive analysis on flow stress of a wrought Al-Mg alloy is performed to examine the effect of strain. For this study, hot compression tests were carried at different temperatures and strain rates. Corrections of friction and adiabatic heating effects lead to the true stress-true strain curves in the form of dynamic recovery, which reach to a steady-state condition. After correction, constitutive analysis at a constant strain is carried out using hyperbolic-sine equation. The effect of strain on each constitutive parameter is studied to derive a strain-dependent constitutive equation based on hyperbolic-sine equation. Some of constitutive parameters reach to the constant values at the specific strain values. Also, the relations between Zener-Holloman parameter and steady-state values of strain and stress are achieved. In order to develop a strong and general flow stress equation, stress-strain curves are normalized to their steady-state values, which results in an almost similar normalized stress-strain behavior for all of the studied deformation conditions (i.e., deformations at different temperatures and strain rates).
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallurgy and Material Forming · Metal Forming Simulation Techniques · Aluminum Alloy Microstructure Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (20)
Show source-provided references
1. M. Gang, L. Bolong, L. Hongmei, H. Hui, and N. Zuoren, Hot Deformation Behavior of an Al-5.7 wt.%Mg Alloy with Erbium, Mater. Sci. Eng. A, 2009, 516, p 131–13710.1016/j.msea.2009.03.029 ↗
2. A. Gholamzadeh and A. Karimi Taheri, The Prediction of Hot Flow Behavior of Al-6% Mg Alloy, Mech. Res. Commun., 2009, 36, p 252–25910.1016/j.mechrescom.2008.06.011 ↗
3. J.E. Hatch, Aluminum: Properties and Physical Metallurgy, ASM, Metals Park, OH, 1984
4. V.V. Ovchinnikov, N.V. Gushchina, D.B. Titorov, D.V. Titorova, S.M. Mozharovskii, and A.V. Filippov, Study of the Texture of Aluminum Alloys After Cold Rolling, Annealing, and Irradiation by Ar+ Ions, Phys. Met. Metallogr., 2010, 109(1), p 77–8510.1134/S0031918X10010084 ↗
5. D. Ke, L. Hengcheng, J. Qiumin, and T. Yun, Effect of Hot Extrusion on Mechanical Properties and Microstructure of Near Eutectic Al-12.0% Si-0.2%Mg alloy, Mater. Sci. Eng. A, 2010, 527, p 6887–689210.1016/j.msea.2010.07.068 ↗
6. F.J. Humphreys and M. Hatherly, Recrystallization and Related Annealing Phenomena, Elsevier Science, Oxford, 1995
7. Y. Deng, Z. Yin, and J. Huang, Hot Deformation Behavior and Microstructural Evolution of Homogenized 7050 Aluminum Alloy During Compression at Elevated Temperature, Mater. Sci. Eng. A, 2011, 528, p 1780–178610.1016/j.msea.2010.11.016 ↗
8. M. Rajamuthamilselvan and S. Ramanathan, Hot Deformation Behaviour of 7075 Alloy, J. Alloy. Compd., 2011, 509, p 948–95210.1016/j.jallcom.2010.09.139 ↗
9. S. Spigarelli, E. Evangelista, E. Cerri, and T.G. Langdon, Constitutive Equations for Hot Deformation of an Al-6061/20%Al2O3 Composite, Mater. Sci. Eng. A, 2001, 321, p 721–72510.1016/S0921-5093(01)01071-1 ↗
10. G. Fang and P. Zeng, Investigation of Thermal Formability of Aluminum Alloy 4032, J. Mater. Eng. Perform., 2006, 15(5), p 535–53910.1361/105994906X136043 ↗
11. H. Mirzadeh and A. Najafizadeh, Flow Stress Prediction at Hot Working Conditions, Mater. Sci. Eng. A, 2010, 527, p 1160–116410.1016/j.msea.2009.09.060 ↗
12. F.A. Slooff, J. Zhou, J. Duszezyk, and L. Katgerman, Strain-Dependent Constitutive Analysis of Three Wrought Mg-Al-Zn Alloys, J. Mater. Sci., 2008, 43, p 7165–717010.1007/s10853-008-3014-2 ↗
13. D. Zhao, Temperature Correction in Compression Tests, J. Mater. Process. Technol., 1993, 36, p 467–47110.1016/0924-0136(93)90058-E ↗
14. R.L. Goetz and S.L. Semiatin, The Adiabatic Correction Factor for Deformation Heating During the Uniaxial Compression Test, J. Mater. Eng. Perform., 2001, 10(6), p 710–71710.1361/105994901770344593 ↗
15. M.A. Mostafaei and M. Kazeminezhad, Hot Deformation Behavior of Hot Extruded Al-6 Mg alloy, Mater. Sci. Eng. A, 2012, 535, p 216–22110.1016/j.msea.2011.12.067 ↗
16. H.J. Mcqueen and N.D. Ryan, Constitutive Analysis in Hot Working, Mater. Sci. Eng. A, 2002, 322, p 43–6310.1016/S0921-5093(01)01117-0 ↗
17. H. Mirzadeh, A. Najafizadeh, and M. Moazeny, Flow Curve Analysis of 17-4 PH Stainless Steel Under Hot Compression Test, Metall. Mater. Trans. A, 2009, 40, p 2950–295810.1007/s11661-009-0029-5 ↗
18. M. Jafari and A. Najafizadeh, Comparison Between the Methods of Determining the Critical Stress for Initiation of Dynamic Recrystallization in 316 Stainless Steel, J. Mater. Sci. Technol., 2008, 24(6), p 840–844
19. H. Mirzadeh and A. Najafizadeh, Extrapolation of Flow Curves at Hot Working Conditions, Mater. Sci. Eng. A, 2010, 527, p 1856–186010.1016/j.msea.2009.11.013 ↗
20. M. Zhou and M.P. Clode, Constitutive Equations for Modelling Flow Softening due to Dynamic Recovery and Heat Generation During Plastic Deformation, Mech. Mater., 1998, 27, p 63–7610.1016/S0167-6636(97)00035-5 ↗