Localized corrosion behaviour of AA6082-T6 Al-Mg-Si alloy: The influence of near-surface deformed layer
Source abstract
Abstract
After mechanical grinding, a near-surface deformed layer (NSDL) was observed on the surface of AA6082-T6 bulk alloy (BA), which exhibits a bi-layered structure. The outer layer of NSDL consists of nano-sized recrystallized grains whereas its inner layer mainly contains heavily-deformed micron-sized grains. Corrosion sensitivity follows a descending sequence: grain boundary of BA > NSDL > matrix of BA. Hence, during the immersion test, localized corrosion initially dissolves the outer layer of NSDL and then penetrates into BA via boundary attack rather than confines within the inner layer of NSDL, which finally propagates into the grain interior of high stored energy.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (70)
Show source-provided references
1. Investigation of dealloying of S phase (Al2CuMg) in AA 2024-T3 aluminium alloy using high resolution 2D and 3D electron imaging10.1016/j.corsci.2015.11.013 ↗
2. The influence of surface treatment on filiform corrosion resistance of painted aluminium alloy sheet10.1016/S0010-938X(03)00003-9 ↗
3. Near-surface deformed layers on rolled aluminum alloys10.1007/s11661-010-0538-2 ↗
4. Orthogonal machining introduced microstructure modification in AA7150-T651 aluminium alloy10.1016/j.matchar.2016.11.015 ↗
5. Delamination of near-surface layer on cold rolled AlFeSi alloy during sheet forming10.1016/j.matchar.2014.11.011 ↗
6. Electrochemical characterization of alloy segregation in the near-surface deformed layer of welded zones of an Al−Cu−Li alloy using scanning electrochemical microscopy10.1016/j.electacta.2022.140873 ↗
7. Surface finishing effects on the corrosion behavior and electrochemical activity of 2098-T351 aluminum alloy investigated using scanning microelectrochemical techniques10.1016/j.matchar.2022.112130 ↗
8. Influence of the altered surface layer on the corrosion of AA508310.1149/2.0321506jes ↗
9. Effect modeling of Cr and Zn on microstructure evolution during homogenization heat treatment of AA3xxx alloys10.1016/S1003-6326(14)63325-2 ↗
10. Effect of altered surface layer on localized corrosion of aluminum alloy 202410.1149/2.1541706jes ↗
11. On the first breakdown in AA7075-T610.1016/j.corsci.2007.02.001 ↗
12. The effect of temper on the first breakdown in AA707510.1016/j.corsci.2007.02.004 ↗
13. Mechanism of localized breakdown of 7000 series aluminum alloys10.1149/2.080310jes ↗
14. Effect of surface roughness on breakdown behavior of Al-Zn-Mg-Cu alloy10.1149/2.1131409jes ↗
15. Accelerated precipitation and growth of phases in an Al-Zn-Mg-Cu alloy processed by surface abrasion10.1016/j.actamat.2017.03.074 ↗
16. Microstructure evolution in abrasion-induced surface layer on an Al–Zn–Mg–Cu alloy10.1016/j.matchar.2014.10.009 ↗
17. Depth profiling of rolled aluminium alloys by means of GDOES10.1002/sia.1776 ↗
18. Reflectance measurements of aluminium surfaces using integrating spheres10.1016/S0143-8166(00)00010-5 ↗
19. Optical and transmission electron microscopical study of the evolution of surface layer on recycled aluminium along the rolling mills10.1016/j.surfcoat.2006.09.090 ↗
20. The effect of manufacturing process induced near-surface deformed layer on the corrosion behaviour of AA2198-T851 Al–Cu–Li alloy10.1080/1478422X.2018.1558932 ↗
21. Precipitation on grain boundaries in Al-Mg-Si alloys: The role of grain boundary misorientation10.1016/j.scriptamat.2021.114494 ↗
22. Localized corrosion at nm-scale hardening precipitates in Al-Cu-Li alloys10.1016/j.actamat.2020.03.006 ↗
23. New quaternary grain boundary precipitate in Al–Mg–Si alloy containing silver10.1016/j.scriptamat.2006.03.064 ↗
24. Evolution of near-surface deformed layers during hot rolling of AA3104 aluminium alloy10.1002/sia.3135 ↗
25. Microstructure evolution in the near-surface region during homogenization of a twin-roll cast AlFeMnSi alloy10.1007/s11661-016-3568-6 ↗
26. Influence of near-surface deformed layers on filiform corrosion of AA3104 aluminium alloy10.1002/sia.5232 ↗
27. Corrosion behaviour of mechanically polished AA7075-T6 aluminium alloy10.1002/sia.3136 ↗
28. Precipitation in an AA6111 aluminium alloy and cosmetic corrosion10.1016/j.actamat.2006.08.025 ↗
29. Modeling the strengthening response to aging process of heat-treatable aluminum alloys containing plate/disc- or rod/needle-shaped precipitates10.1016/S0921-5093(02)00398-2 ↗
30. Corrosion behaviour of AA6082 Al-Mg-Si alloy extrusion: the influence of quench cooling rate10.1016/j.corsci.2019.01.030 ↗
31. Insights on the Al-Cu-Fe-Mn intermetallic particles induced pitting corrosion of Al-Cu-Li alloy10.1016/j.corsci.2020.109040 ↗
32. Crystal-plasticity simulation of the correlation of microtexture and roping in AA 6xxx Al–Mg–Si sheet alloys for automotive applications10.1016/j.actamat.2012.06.039 ↗
33. Recent development in aluminium for automotive applications10.1016/S1003-6326(14)63305-7 ↗
34. The influence of room temperature storage on intergranular corrosion susceptibility of AA6082 Al-Mg-Si alloy10.1016/j.corcom.2021.09.004 ↗
35. Intergranular corrosion of AA6082 Al–Mg–Si alloy extrusion: the influence of trace Cu and grain boundary misorientation10.1016/j.jallcom.2020.157228 ↗
36. The propagation of localized corrosion in Al-Cu-Li alloy10.1002/sia.5890 ↗
37. Grain-stored energy and the propagation of intergranular corrosion in AA2xxx aluminium alloys10.1002/sia.5218 ↗
38. The influence of grain structure on the corrosion behaviour of 2A97-T3 Al-Cu-Li alloy10.1016/j.corsci.2016.12.005 ↗
39. Laser welding introduced segregation and its influence on the corrosion behaviour of Al-Cu-Li alloy10.1016/j.corsci.2018.02.044 ↗
40. Corrosion Behavior of Friction Stir Welded 2A97 Al-Cu-Li alloy10.5006/2418 ↗
41. Intergranular corrosion in AA2024-T3 aluminium alloy: the influence of stored energy and prediction10.1016/j.corsci.2019.04.031 ↗
42. Corrosion behaviour of 2A97-T6 Al-Cu-Li alloy: the influence of non-uniform precipitation10.1016/j.corsci.2017.12.010 ↗
43. Localized corrosion in AA2024-T351 aluminium alloy: transition from intergranular corrosion to crystallographic pitting10.1016/j.matchar.2017.06.022 ↗
44. Influence of thermomechanical treatments on localized corrosion susceptibility and propagation mechanism of AA2099 Al–Li alloy10.1016/S1003-6326(16)64252-8 ↗
45. Crystallographic defects induced localised corrosion in AA2099-T8 aluminium alloy10.1179/1743278214Y.0000000237 ↗
46. Corrosion-induced mechanical properties degradation of Al-Cu-Li (2198-T351) aluminium alloy and the role of side-surface cracks10.1016/j.corsci.2021.109330 ↗
47. Low-alloy-correlated reversal of the precipitation sequence in Al-Mg-Si alloys10.1016/j.jallcom.2017.01.095 ↗
48. The structural and compositional evolution of precipitates in Al-Mg-Si-Cu alloy10.1016/j.actamat.2017.12.036 ↗
49. Enhanced dispersoid precipitation and dispersion strengthening in an Al alloy by microalloying with Cd10.1016/j.actamat.2018.07.001 ↗
50. Transition from intergranular to pitting corrosion in fine grained aluminum processed by equal channel angular pressing10.1016/j.corsci.2014.06.031 ↗
51. Effect of microcrystallization on pitting corrosion of pure aluminium10.1016/j.corsci.2009.05.046 ↗
52. The intergranular corrosion susceptibility of 2024 Al alloy during re–ageing after solution treating and cold–rolling10.1016/j.corsci.2016.11.013 ↗
53. Criteria for developing castable, creep-resistant aluminum-based alloys – a review10.1515/ijmr-2006-0042 ↗
54. Observations of intergranular corrosion in AA2024-T351: the influence of grain stored energy10.1016/j.corsci.2012.04.005 ↗
55. Chapter 14 - continuous recrystallization during and after large strain deformation
56. Electron microscopy analysis of grain boundaries and intergranular corrosion in aged Al-Mg-Si alloy doped with 0.05 wt% Cu10.1016/j.corsci.2022.110758 ↗
57. Grain boundary precipitation induced by grain crystallographic misorientations in an extruded Al–Mg–Si–Cu alloy10.1016/j.jallcom.2014.10.206 ↗
58. The role of grain boundary plane orientation in the β phase precipitation of an Al–Mg alloy10.1016/j.scriptamat.2014.07.003 ↗
59. Corrosion behaviour of AA6082 Al-Mg-Si alloy extrusion: recrystallized and non-recrystallized structures10.1016/j.corsci.2018.08.047 ↗
60. Corrosion behaviour of 2A97-T8 Al-Cu-Li alloy extrusion10.1016/j.jallcom.2021.162872 ↗
61. Corrosion morphology evolution in 2A97-T6 Al-Cu-Li alloy: the influence of grain-stored energy10.1016/j.matchar.2022.112169 ↗
62. Crack path and fracture analysis in FSW of small diameter 6082-T6 aluminium tubes under tension–torsion loading10.1016/j.ijfatigue.2016.02.043 ↗
63. Grain boundary segregation and precipitation in aluminium alloy AA606110.4028/www.scientific.net/MSF.519-521.467 ↗
64. Probing corrosion initiation at interfacial nanostructures of AA2024-T310.1016/j.corsci.2016.12.006 ↗
65. B. Liu, X.Rong Zhou, 2014, B. Liu, X.Rong Zhou, The Impact of Machining on the Corrosion Behaviour of AA7150-T651 Aluminium Alloy, 2014.10.4028/www.scientific.net/MSF.794-796.217 ↗
66. Investigation of the de-alloying behaviour of θ-phase (Al2Cu) in AA2024-T351 aluminium alloy10.1016/j.corsci.2016.03.003 ↗
67. A closer look at constituent induced localised corrosion in Al-Cu-Mg alloys10.1016/j.corsci.2016.10.018 ↗
68. Localized corrosion in AA2099-T83 aluminum–lithium alloy: the role of intermetallic particles10.1016/j.matchemphys.2015.05.037 ↗
69. Stable pit formation on AA2024-T3 in a NaCl environment10.1016/j.corsci.2009.08.043 ↗
70. Study of localized corrosion in AA2024 aluminium alloy using electron tomography10.1016/j.corsci.2012.02.001 ↗