Quantitative study on dynamic instantaneous dissolution of precipitated phases in 2195-T6 Al-Li alloy based on characterizations with SANS and TEM
Source abstract
Abstract
The kinetics of the dynamic instantaneous dissolution of the precipitated phases in 2195-T6 Al-Li alloy under high strain rate loading was firstly studied quantitatively by means of the small angle neutron scattering (SANS) and transmission electron microscopy (TEM) techniques, and the thermodynamics and transformation mechanism were also illustrated in this paper. The high strain rate loadings were performed by the split Hopkinson pressure bar. The maximum flow stresses increased but the pulse durations decreased with increasing strain rates. TEM observations indicated that the size and volume fraction of the T 1 phases decreased. The SANS fitting results showed that the radius and volume fraction of the T 1 phase decreased after loading. The dissolution activation energy (Q d ) was calculated to be 28.4 kJ/mol by combining the Johnsone-Mehl-Avrami-Kolmogorov (JMAK) equation and the Arrhenius equation, indicating that the instantaneous dissolution of T 1 phase was kinetically feasible. The T 1 phase generated a larger distortion energy, and the surface energy as well as the internal pressure of T 1 phase increased in dissolving during dynamic loading to increase the free energy difference (driving force for dissolving) between T 1 phase and matrix, making the instantaneous dissolution of the T 1 phases be thermodynamically feasible. The diffusion rates of Cu and Li atoms were significantly accelerated to promote the instantaneous dissolution of T 1 phase particles. The results of the Vickers hardness values showed that the hardness increased after loadings, due to the high density of dislocations and only partial dissolution of the T 1 phase particles.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Aluminum Alloy Microstructure Properties · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (83)
Show source-provided references
1. SoC hardware implementation of real-time video segmentation based on the mixture of Gaussian algorithm10.3390/jlpea7020012 ↗
2. Hardness distribution and aging response associated with precipitation behavior in a laser pressure welded Al–Li alloy 219810.1016/j.msea.2021.140946 ↗
3. Formation mechanisms and control strategies of FQZ softening in Al–Li alloy welded joint10.1016/j.jmrt.2023.01.147 ↗
4. Vacuum distillation and ab initio molecular dynamic simulation of Al–Li alloys10.1016/j.vacuum.2023.111877 ↗
5. Development and characterization of Al–Li alloys10.1016/j.msea.2006.01.045 ↗
6. Microstructure evolution and strengthening mechanism of Al-Li alloy during thermo-electromagnetic forming process10.1016/j.jmatprotec.2023.117922 ↗
7. Spall strength and equation of states for 2050-T84 Al–Li alloy under shock compression up to 120 GPa10.1016/j.jpcs.2022.111138 ↗
8. Influence of Mg, Ag and Zn minor solute additions on the precipitation kinetics and strengthening of an Al-Cu-Li alloy10.1016/j.actamat.2017.05.029 ↗
9. The effect of minor solute additions on the precipitation path of an Al Cu Li alloy10.1016/j.actamat.2016.05.050 ↗
10. Hot deformation behavior and microstructure evolution of the spray deposited and secondary hot extruded 2195 Al–Li alloy10.1016/j.jmrt.2022.08.055 ↗
11. Precipitation of Al3Zr by two-step homogenization and its effect on the recrystallization and mechanical property in 2195 Al–Cu–Li alloys10.1016/j.msea.2021.141637 ↗
12. Strengthening mechanisms, deformation behavior, and anisotropic mechanical properties of Al-Li alloys: a review10.1016/j.jare.2017.12.004 ↗
13. Phase diagrams and phase reactions in Al–Li alloys
14. Liu · 2020
15. The effect of thermo-mechanical treatment on the formation of T1 phase and δ′/θ′/δ′ composite precipitate in an Al-Cu-Li-Mg alloy10.1016/j.matchar.2021.111123 ↗
16. Transmission electron microscopy study of the evolution of precipitates in aged Al–Li–Cu alloys: the θ′ and T1 phases10.1016/S1359-6454(03)00253-2 ↗
17. Effect of interfaces of grain boundary Al2CuLi plates on fracture behavior of Al–3Cu–2Li10.1016/j.actamat.2014.12.025 ↗
18. Simulation on function mechanism of T1(Al2CuLi) precipitate in localized corrosion of Al-Cu-Li alloys10.1016/S1003-6326(07)60005-3 ↗
19. Local microstructure evolution and mechanical performance of friction stir additive manufactured 2195 Al-Li alloy10.1016/j.matchar.2022.111818 ↗
20. Microstructure evolution of 2195 Al–Li alloy subjected to high-strain-rate deformation10.1016/j.msea.2014.03.118 ↗
21. Investigation into the dynamic mechanical properties of selective laser melted Ti-6Al-4 V alloy at high strain rate tensile loading10.1016/j.msea.2019.01.010 ↗
22. The mechanical behavior and microstructural evolution of a dual-phase 90W–7Ni–3Fe alloy under quasi-static and dynamic loading10.1016/j.msea.2022.143696 ↗
23. Meyers · 1994
24. Shear localization in metallic materials at high strain rates10.1016/j.pmatsci.2020.100755 ↗
25. Evolution of precipitates in ZK60 magnesium alloy during high strain rate deformation10.1016/j.jallcom.2017.02.158 ↗
26. Microstructural characterization and evolution mechanism of adiabatic shear band in a near beta-Ti alloy10.1016/j.msea.2010.12.053 ↗
27. Observation of the microstructure in the adiabatic shear band of 7075 aluminum alloy10.1016/j.msea.2010.02.024 ↗
28. Diffusive transformation at high strain rate: on instantaneous dissolution of precipitates in aluminum alloy during adiabatic shear deformation10.1557/jmr.2016.151 ↗
29. Influence of strain rate on the precipitate microstructure in impacted aluminum alloy10.1016/j.scriptamat.2008.06.056 ↗
30. The effect of strain rate on the microstructure of 2519A aluminium alloy plate impacted at 573K10.1016/j.jallcom.2009.03.006 ↗
31. Effect of aging treatment on microstructure and mechanical properties of TIG welded joints of 2195-T8 Al-Li alloy10.1016/j.matchar.2022.112576 ↗
32. Effect of the aging process and pre-deformation on the precipitated phase and mechanical properties of 2195 Al–Li alloy10.1016/j.msea.2021.142394 ↗
33. High strain rate dynamic compressive behaviour of Al6061-T6 alloys10.1016/j.matchar.2017.03.005 ↗
34. Numerical investigation on the dynamic strength and failure behavior of rocks under hydrostatic confinement in SHPB testing10.1016/j.ijrmms.2018.05.008 ↗
35. Characterization and modeling of the influence of artificial aging on the microstructural evolution of age-hardenable AlSi10Mg(Cu) aluminum alloys10.1016/j.msea.2014.04.031 ↗
36. Analysis of the precipitation behaviour in a high-speed steel by means of small-angle neutron scattering10.1016/j.msea.2005.03.084 ↗
37. Characterization of precipitation in 2000 series Aluminium alloys using neutron diffraction, SANS and SEM methods
38. Characterization of Zr-containing dispersoids in Al-Zn-Mg-Cu alloys by small-angle scattering10.3390/ma16031213 ↗
39. Microscopic mechanism exploration and constitutive equation construction for compression characteristics of AZ31-TD magnesium alloy at high strain rate10.1016/j.msea.2019.138571 ↗
40. Mechanical property and microstructure evolution of aged 6063 aluminum alloy under high strain rate deformation10.1016/j.vacuum.2018.10.013 ↗
41. Mechanical properties, corrosion and microstructure distribution of a 2195-T8 Al Li alloy TIG welded joint10.1016/j.jmapro.2023.02.007 ↗
42. The time-of-flight small-angle neutron spectrometer at china spallation neutron source10.1080/10448632.2018.1514197 ↗
43. Ultra-small-angle neutron scattering study on temperature-dependent precipitate evolution in CoCrFeNiMo0.3 high entropy alloy10.1016/j.actamat.2021.117446 ↗
44. Guinier · 1995 · 15
45. Scattering functions for geometrical forms
46. Evolution of the precipitate composition during annealing of vanadium micro-alloyed steels by in-situ SANS10.1016/j.actamat.2020.09.083 ↗
47. A first-principles study on the doping stability and micromechanical properties of alloying atoms in aluminum matrix10.1016/j.vacuum.2022.111596 ↗
48. Neutron scattering lengths and cross sections10.1080/10448639208218770 ↗
49. SasView for Small Angle Scattering Analysis Software (2019). http://www.sasview.org/.
50. Dynamic compressive behavior of a single crystal nickel-base superalloy at ultra-high temperature: mechanism investigation with a modified electric synchronous SHPB technique10.1016/j.jmrt.2022.02.121 ↗
51. Friction stir welding joints of 2195-T8 Al–Li alloys: correlation of temperature evolution, microstructure and mechanical properties10.1016/j.msea.2021.141501 ↗
52. Thermo-mechanical characterization and dynamic failure of a CoCrFeNi high-entropy alloy10.1016/j.msea.2022.143166 ↗
53. Surface gradient microstructural characteristics and evolution mechanism of 2195 aluminum lithium alloy induced by laser shock peening10.1016/j.optlastec.2018.07.041 ↗
54. Effect of pulsed electromagnetic field treatment on dislocation evolution and subsequent artificial aging behavior of 2195 Al-Li alloy10.1016/j.matchar.2022.111872 ↗
55. A novel computational framework to calculate Gibbs energy and phase transitions under external magnetic fields applied to the Bi–Mn system10.1016/j.actamat.2022.118496 ↗
56. Microstructure evolution within adiabatic shear band in peak aged ZK60 magnesium alloy10.1016/j.msea.2017.10.111 ↗
57. Design of an in–situ multi–scale particles reinforced (Al2O3+ZrB2+AlN)/Al composite with high strength, elasticity modulus and thermal stability10.1016/j.msea.2020.138983 ↗
58. Improving the strength contribution of T1 precipitates in Al-4Cu-1.2Li-0.1Sc alloys by dissolving Cu-enriched second phases10.1016/j.matchar.2023.112751 ↗
59. Growth kinetics of cellular precipitation in a Mg–8.5Al–0.5Zn–0.2Mn (wt.%) alloy10.1016/j.msea.2010.08.052 ↗
60. Discontinuous precipitation in CuCo alloys10.1016/0001-6160(81)90086-9 ↗
61. Modeling the kinetics of deformation-induced martensitic transformation in AISI 316 metastable austenitic stainless steel10.1016/j.vacuum.2018.08.066 ↗
62. Homogenization kinetics of a typical nickel-based superalloy10.1016/j.jallcom.2019.04.147 ↗
63. As-cast microstructure and homogenization kinetics of a typical hard-to-deform Ni-base superalloy10.1016/j.jmrt.2023.01.150 ↗
64. High thermal stability of nanocrystalline FeNi2CoMo0.2V0.5 high-entropy alloy by twin boundary and sluggish diffusion10.1016/j.msea.2022.143399 ↗
65. The fast diffusion paths of copper atoms in Al–Cu–Si alloys10.1016/j.msea.2006.03.019 ↗
66. Precipitate coarsening during overaging of Al–Zn–Mg–Cu alloy10.1179/026708399101505176 ↗
67. Precipitation kinetics of GP zones, metastable η′ phase and equilibrium η phase in Al−5.46 wt.%Zn−1.67 wt.%Mg alloy10.1016/S1003-6326(19)64932-0 ↗
68. The kinetics of precipitation in Al-2.4wt% Cu alloy by Kissinger, Ozawa, Bosswel and Matusita methods10.1016/j.physb.2011.03.053 ↗
69. Effect of splat cooling on microstructures and mechanical properties of friction stir welded 2195 Al–Li alloy10.1016/j.msea.2022.144169 ↗
70. Atomistic modeling of surface and grain boundary dislocation nucleation in FCC metals10.1016/j.actamat.2022.118155 ↗
71. Dynamic mechanical behaviors and failure thresholds of ultra-high strength low-alloy steel under strain rate 0.001/s to 106/s10.1016/j.msea.2018.02.019 ↗
72. Characterization of strain rate sensitivity of 7075 aluminum alloy at different solution temperatures by novel kinetic models10.1016/j.mseb.2022.115751 ↗
73. Flow behavior and microstructure evolution of 7055 aluminum alloy impacted at high strain rates10.1016/j.msea.2016.09.047 ↗
74. Improvement of strength and ductility of Al-Cu-Li alloy through cryogenic rolling followed by aging10.1016/S1003-6326(17)60216-4 ↗
75. Effect of dynamic plastic deformation on the microstructure and mechanical properties of an Al–Zn–Mg alloy10.1016/j.msea.2020.139287 ↗
76. Graham · 1993
77. Materials Modification and Synthesis Under High Pressure Shock Compression[J]10.1146/annurev.ms.16.080186.001531 ↗
78. Lattice defects in shock-deformed and cold-worked nickel10.1063/1.1709733 ↗
79. Hydrogen diffusion kinetics in dual-phase (DP 980) steel: the role of pre-strain and tensile stress10.1016/j.electacta.2022.141727 ↗
80. Interfacial microstructure and mechanical properties of TiAl alloy/TC4 titanium alloy joints diffusion bonded with CoCuFeNiTiV0.6 high entropy alloy interlayer10.1016/j.jallcom.2022.167987 ↗
81. Improved wear properties of GCr15 steel balls by fabricating a surface Ti diffusion layer using mechanical alloying and NH3·H2O treatment10.1016/j.jmrt.2022.12.042 ↗
82. Microstructural and texture evolution investigation of laser melting deposited TA15 alloy at 500 °C using in-situ EBSD tensile test10.1016/j.msea.2022.144062 ↗
83. Maximum shear stress-controlled uniaxial tensile deformation and fracture mechanisms and constitutive relations of Sn–Pb eutectic alloy at cryogenic temperatures10.1016/j.msea.2021.141523 ↗