Workability and dynamic restoration mechanisms of Al-6.2Zn-2.1Mg-0.15Zr alloy during medium temperature compression
Source abstract
Abstract
Medium temperature compressions were implemented in the range of 433–593 K and 0.001–5 s−1 to reveal the workability and dynamic restoration mechanisms of quenched Al-6.2Zn-2.1Mg-0.15Zr alloy. The activation energy evolution with processing parameters was inspected through the modified kinetic equation that derived by integrally considering the strain and deformation parameters, and the results suggested activation energies decreased with the increasing strain rate and deformation temperature while less affected by the increase of strain at a specific strain rate condition. The 3D processing map was constructed to optimize the processing regions, in which two unstable domains yielded by distinct microscopic instabilities were marked whilst the safe working regions could be identified at 533–593 K, 0.001–0.1 s−1 with dissipation efficiency >20%. The microstructural evolution of the compressed specimens was examined, and the results confirmed different types of dynamic recovery (DRV) involving dislocation migration and rearrangement were dominate restoration process during the compression. Also, the microstructures of the specimens deformed at unstable domains were characterized, the results revealed fluctuating flow localization, micro cracking and particles debonding as well as dynamic strain aging were responsible for compression failure.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Metallurgy and Material Forming · Microstructure and mechanical properties · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
Show source-provided references
1. Recent developments in advanced aircraft aluminium alloys10.1016/j.matdes.2013.12.002 ↗
2. Recent advances in the development of aerospace materials10.1016/j.paerosci.2018.01.001 ↗
3. Grain refining with DDRX by isothermal MDF of Al-Zn-Mg-Cu alloy10.1016/j.jmrt.2020.05.033 ↗
4. Deformation induced grain boundary segregation and thermal stability of nanolaminated Al-Zn-Mg-Cu alloy10.1016/j.matlet.2022.131930 ↗
5. Ultrafine-grained Al-Zn-Mg-Cu alloy processed via cross accumulative extrusion bonding and subsequent aging: microstructure and mechanical properties10.1016/j.jallcom.2020.156306 ↗
6. Strengthening of aluminium alloy 7005 through imposition of severe plastic deformation supplemented by different ageing treatments10.1016/S1003-6326(21)65702-3 ↗
7. Effect of equal channel angular pressing on the mechanical and tribological behavior of Al-Zn-Mg-Cu alloy10.1016/j.matchar.2018.03.045 ↗
8. Microstructure and mechanical properties of Al-7075 alloy processed by equal channel angular pressing combined with aging treatment10.1016/j.matdes.2014.01.008 ↗
9. The effect of severe plastic deformation on precipitation in supersaturated Al-Zn-Mg alloys10.1016/j.msea.2007.01.001 ↗
10. Influence of the thermomechanical treatment on the microplastic behaviour of a wrought Al-Zn-Mg-Cu alloy10.1016/j.actamat.2003.12.009 ↗
11. Warm formability and post-forming microstructure/property of high-strength AA 7075-T6 Al alloy10.1016/j.msea.2016.08.054 ↗
12. Enhanced plasticity and corrosion resistance of high strength Al-Zn-Mg-Cu alloy processed by an improved thermomechanical processing10.1016/j.jallcom.2017.05.047 ↗
13. The mechanism of grain refinement and plasticity enhancement by an improved thermomechanical treatment of 7055 Al alloy10.1016/j.msea.2017.06.106 ↗
14. The mechanism of comprehensive properties enhancement in Al-Zn-Mg-Cu alloy via novel thermomechanical treatment10.1016/j.jallcom.2020.154446 ↗
15. Microstructure evolution and mechanical responses of Al-Zn-Mg-Cu alloys during hot deformation process10.1007/s10853-021-06095-7 ↗
16. Effects of initial microstructure on hot deformation behavior of Al-7.9Zn-2.7Mg-2.0Cu (wt%) alloy10.1016/j.matchar.2019.03.019 ↗
17. Effects of strain rate on flow stress behavior and dynamic recrystallization mechanism of Al-Zn-Mg-Cu aluminum alloy during hot deformation10.1016/j.msea.2016.03.027 ↗
18. Hot deformation and processing maps of Al-Zn-Mg-Cu alloy under coupling-stirring casting10.1016/j.jmrt.2018.08.009 ↗
19. A critical review of experimental results and constitutive descriptions for metals and alloys in hot working10.1016/j.matdes.2010.11.048 ↗
20. Hot deformation constitutive model and processing maps of homogenized Al-5Mg-3Zn-1Cu alloy10.1016/j.jmrt.2021.06.069 ↗
21. Prasad · 2015
22. Modeling of dynamic material behavior in hot deformation: forging of Ti-624210.1007/BF02664902 ↗
23. Dynamic recrystallization and precipitation behavior of a novel Sc, Zr alloyed Al-Zn-Mg-Cu alloy during hot deformation10.1016/j.matchar.2021.111629 ↗
24. Study on hot compressive deformation behaviors and corresponding industrial extrusion of as-homogenized Al-7.82Zn-1.96Mg-2.35Cu-0.11Zr alloy10.1007/s10853-018-2388-z ↗
25. Novel flow stress prediction and work hardening behavior of aluminium alloy AA7075 at room and elevated temperatures
26. Characterization of hot workability in AA 7050 aluminum alloy using activation energy and 3-D processing map10.1016/j.jmatprotec.2015.05.018 ↗
27. Microstructural evolution of Al-7.3Zn-2.2Mg-2Cu (Al7068) alloy in T6 condition during isothermal compression using 3-dimensional processing map10.1016/j.jallcom.2022.163690 ↗
28. The grain size and orientation dependence of geometrically necessary dislocations in polycrystalline aluminum during monotonic deformation: relationship to mechanical behavior10.1016/j.msea.2020.138939 ↗
29. Concurrent dynamic strain aging and dynamic precipitation evades strength-ductility trade-off in a high Mg-content aluminum crossover alloy10.1016/j.msea.2022.143800 ↗
30. A review of dynamic recrystallization phenomena in metallic materials10.1016/j.matdes.2016.09.012 ↗
31. A comprehensive review of magnesium-based alloys and composites processed by cyclic extrusion compression and the related techniques10.1016/j.pmatsci.2022.101016 ↗
32. Modeling and application of constitutive model considering the compensation of strain during hot deformation10.1016/j.jallcom.2016.04.153 ↗
33. Hot deformation behavior and constitutive equation of a new type Al-Zn-Mg-Er-Zr alloy during isothermal compression10.1016/j.msea.2015.10.122 ↗
34. Constitutive analysis of homogenized 7005 aluminum alloy at evaluated temperature for extrusion process10.1016/j.matdes.2014.10.045 ↗
35. 3D processing map and hot deformation behavior of 6A02 aluminum alloy10.1016/j.jallcom.2018.01.299 ↗
36. Influence of shear banding on the formation of brass-type textures in polycrystalline fcc metals with low stacking fault energy10.1016/j.jmst.2013.11.010 ↗
37. Microstructure evolution, texture development, and mechanical properties of hot-rolled 5052 aluminum alloy followed by annealing10.1088/2053-1591/ac6b8d ↗
38. A detailed investigation on the grain structure evolution of AA7005 aluminum alloy during hot deformation10.1016/j.matchar.2020.110801 ↗
39. Dynamic recrystallization mechanisms of 2195 aluminum alloy during medium/high temperature compression deformation10.1016/j.msea.2020.140650 ↗