The dynamic evolution of microstructure and mechanical properties of an Al–Cu–Li alloy during multi-axial compression
Source abstract
Abstract
A 2297 aluminum-lithium alloy was subjected to multi-axial compression (MAC) at 160 °C to obtain different cumulative strains. The room temperature tensile test, transmission electron microscopy and X-ray diffraction techniques were used to study the microstructural evolution and mechanical properties of Al–Cu–Li alloy. It was observed that the ultimate tensile strength was increased from 267 MPa to 480 MPa and the hardness was increased from 55 HV to 141 HV by high-density dislocations and precipitation phases. Due to the massive amount of precipitation occurring at dislocations and the subsequent high strain introduced to destroyed it, the size of the precipitates was effectively reduced, the fine precipitates delayed the strain localization, the alloy obtained high elongation (~11.2 %).
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Microstructure and mechanical properties · Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Starke · 2014
2. Strengthening mechanisms, deformation behavior, and anisotropic mechanical properties of Al-Li alloys: a review10.1016/j.jare.2017.12.004 ↗
3. Combinative hardening effects of precipitation in a commercial aged Al–Cu–Li–X alloy10.1016/j.msea.2013.09.016 ↗
4. Distribution and evolution of aging precipitates in Al-Cu-Li alloy with high Li concentration10.1016/S1003-6326(18)64910-6 ↗
5. Aging behavior of Al-Li-(Cu, Mg) alloys processed by different deformation methods10.1016/j.matdes.2020.109139 ↗
6. Nucleation of δ′ (Al3Li) onβ' (Al3Zr) in Al-Li-Zr and Al-Li-Cu-Zr alloys10.1007/BF01729426 ↗
7. Fatigue life and failure characteristics of an ultrafine-grained Ti–6Al–4V alloy processed by ECAP and extrusion10.1002/adem.201300530 ↗
8. Extra-Hardening of SPD-processed Al-Mg alloy with minimum grain sizes10.4028/www.scientific.net/MSF.1016.952 ↗
9. High strength and good electrical conductivity in Cu–Cr alloys processed by severe plastic deformation10.1016/j.matlet.2015.03.144 ↗
10. Microstructure evolution and mechanical behavior of a binary Al-7Mg alloy processed by equal-channel angular pressing10.1016/j.actamat.2014.10.025 ↗
11. A comparison of the properties of SPD-processed AA-6061 by equal-channel angular pressing, multi-axial compressions/forgings and accumulative roll bonding10.1016/j.msea.2005.08.024 ↗
12. Influence of multi-axial compression pre-treatment on the microstructure evolution and mechanical properties of an Al–Cu–Li alloy during aging10.1007/s10853-020-04494-w ↗
13. Using an Al-Cu binary alloy to compare processing by multi-axial compression and high-pressure torsion10.1016/j.msea.2013.09.001 ↗
14. Microstructural evolution of Cu–Al alloys subjected to multi-axial compression10.1016/j.matchar.2015.03.021 ↗
15. Development of ultrafine-grained metals by equal-channel angular pressing10.1016/B978-0-08-096532-1.00314-9 ↗
16. Using high-pressure torsion for metal processing: fundamentals and applications10.1016/j.pmatsci.2008.03.002 ↗
17. Effect of equal channel angular pressing (ECAP) on the evolution of texture, microstructure and mechanical properties in the Al-Cu-Li alloy AA219510.1016/j.jallcom.2019.01.161 ↗
18. Microstructure evolution and mechanical properties of Al−3.6Cu−1Li alloy via cryorolling and aging10.1016/S1003-6326(20)65430-9 ↗
19. Precipitation kinetics in a severely plastically deformed 7075 aluminium alloy10.1016/j.actamat.2013.11.071 ↗
20. Atomic structure of T1 precipitates in Al–Li–Cu alloys revisited with HAADF-STEM imaging and small-angle X-ray scattering10.1016/j.actamat.2010.09.044 ↗
21. Precipitation processes in Al-Cu-Li alloy studied by DSC10.4028/www.scientific.net/MSF.13-14.377 ↗
22. Formation of nm-size dispersoids from supersaturated solid solutions of aluminium10.4028/www.scientific.net/MSF.331-337.879 ↗
23. Computer simulation of stress-oriented nucleation and growth of θ′ precipitates in Al–Cu alloys10.1016/S1359-6454(97)00478-3 ↗
24. Mechanism of Al2CuLi (T1) nucleation and growth10.1007/BF02656798 ↗
25. The role of plastic deformation on the competitive microstructural evolution and mechanical properties of a novel Al-Li-Cu-X alloy10.1016/S1471-5317(00)00002-X ↗
26. Prasad · 2014
27. Effect of cold rolling pre-deformation on microstructure and properties of V-1469 Al-Li alloy10.1016/j.jmrt.2020.06.028 ↗
28. Microstructures and mechanical properties of Al-Li 2198-T8 alloys processed by two different severe plastic deformation methods: a comparative study10.1016/j.msea.2016.10.108 ↗
29. Reduced residual stress and retained properties in Al-Zn-Mg-Cu alloys using a novel cladding quenching process10.1016/j.jmrt.2020.04.080 ↗
30. Dislocation densities in some annealed and cold-worked metals from measurements on the X-ray debye-scherrer spectrum10.1080/14786435608238074 ↗
31. Thermal stability of microstructure, mechanical properties, formability parameters and crystallographic texture in an Al-7075 alloy processed by accumulative roll bonding10.1016/j.jmrt.2021.02.041 ↗
32. Partial dissolution of strengthening particles induced by equal channel angular pressing in an Al–Li–Cu alloy10.1016/j.matchar.2012.03.005 ↗
33. Effects of precipitates versus solute atoms on the deformation-induced grain refinement in an Al–Cu–Mg alloy10.1016/j.msea.2019.138486 ↗
34. Influence of cumulative strain on microstructure and mechanical properties of multi-directional forged 2A14 aluminum alloy10.1016/j.msea.2016.07.072 ↗
35. Improvement of the mechanical properties of Al–Mg–Si alloys with nano-scale precipitates after repetitive continuous extrusion forming and T8 tempering10.1016/j.jmrt.2019.09.070 ↗
36. Influencing mechanisms of heat treatments on microstructure and comprehensive properties of Al–Zn–Mg–Cu alloy formed by spray forming10.1016/j.jmrt.2020.03.121 ↗
37. Strengthening mechanisms of T1 precipitates and their influence on the plasticity of an Al–Cu–Li alloy10.1016/j.msea.2014.03.024 ↗