A new healing strategy for metals: Programmed damage and repair
Source abstract
Abstract
Abstract: Self-healing strategies aim at avoiding part repair or even replacement, which is time consuming, expen-sive and generates waste. However, strategies for metallic systems are still under-developed and solid-state solutions for room temperature service are limited to nano-scale damage repair. Here we propose a new healing strategy of micron-sized damage requiring only short and low temperature heating. This new strategy is based on damage localization particles, which can be healed by fast diffusing atoms of the matrix activated during heat treatment. The healing concept was successfully validated with a com-mercial aluminum alloy and manufactured by Friction Stir Processing (FSP). Damage was demonstrated to initiate on particles that were added to the matrix during material processing. In situ 2D and 3D nano -imaging confirmed healing of the damaged material and showed that heating this material for 10 min at 400 degrees C is sufficient to heal incipient damage with complete filling of 70% of all damage (and up to 90% when their initial size is below 0.2 mu m). Furthermore, strength is retained and the work of fracture of the alloy is improved by about 40% after healing. The proposed Programmed Damage and Repair healing strategy could be extended to other metal based systems presenting precipitation. (C) 2022 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Microbial Applications in Construction Materials · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (50)
Show source-provided references
1. Polmear · 2017
2. Ductilization of aluminium alloy 6056 by friction stir processing10.1016/j.actamat.2017.01.047 ↗
3. Toughness-strength relations in the overaged 7449 Al-based alloy10.1007/s11661-002-0214-2 ↗
4. Damage mechanisms in selective laser melted AlSi10Mg under as built and different post-treatment conditions10.1016/j.msea.2019.138210 ↗
5. Self-Healing Phenomena in Metals10.1002/admi.201800226 ↗
6. Self-healing metals
7. Approach to self healing in metal matrix composites: a review10.1016/j.matpr.2018.06.332 ↗
8. Nosonovsky · 2012
9. A review of self-healing metals: fundamentals, design principles and performance10.1007/s40195-020-01102-3 ↗
10. In situ electron microscopy investigation of void healing in an Al-Mg-Er alloy at a low temperature10.1016/j.actamat.2014.02.004 ↗
11. Microstructure reset-based self-healing method using sub-second electric pulsing for metallic materials
12. The plastic flow model in the healing process of internal microcracks in pre-deformed TC4 sheet by pulse current10.1016/j.matdes.2019.108428 ↗
13. Analysis of SN-BI solders: X-ray micro computed tomography imaging and microstructure characterization in relation to properties and liquid phase healing potential
14. Self-healing in metal-based systems
15. Self healing of creep damage in iron-based alloys by supersaturated tungsten10.1016/j.actamat.2019.01.014 ↗
16. Self-healing of deformation damage in underaged Al-Cu-Mg alloys10.1016/j.scriptamat.2007.11.039 ↗
17. Postponing crack nucleation in 2024 aluminium alloy by dynamic precipitation from the supersaturated state10.4028/www.scientific.net/AMR.891-892.1577 ↗
18. Enhanced creep performance in an Al-Cu-Mg-Ag alloy through underageing10.1016/S1359-6454(02)00164-7 ↗
19. Enhanced fatigue resistance in a commercial Al-Cu-Mg alloy through underageing
20. Fatigue Crack Initiation in Aerospace Aluminium Alloys, Components and Structures
21. Chawla · 2013
22. Quantitative assessment of the impact of second phase particle arrangement on damage and fracture anisotropy10.1016/j.actamat.2018.02.003 ↗
23. Self healing in aluminium alloys
24. Diffusion in metals and alloys
25. Bauri · 2018
26. Friction stir welding/processing of metals and alloys: a comprehensive review on microstructural evolution
27. Fast in situ 3D nanoimaging: a new tool for dynamic characterization in materials science10.1016/j.mattod.2017.06.001 ↗
28. Holotomography: Quantitative phase tomography with micrometer resolution using hard synchrotron radiation x rays10.1063/1.125225 ↗
29. ID16B: A hard X-ray nanoprobe beamline at the ESRF for nano-analysis10.1107/S1600577515019839 ↗
30. Characterization and micromechanical modelling of microstructural heterogeneity effects on ductile fracture of 6xxx aluminium alloys10.1016/j.actamat.2015.10.008 ↗
31. Heterogenous void growth revealed by in situ 3-D X-ray microtomography using automatic cavity tracking10.1016/j.actamat.2013.10.014 ↗
32. Cluster evolution mechanisms during aging in Al-Mg-Si alloys10.1016/j.actamat.2015.09.027 ↗
33. APFIM investigation of fine-scale precipitation in aluminium alloy 606110.1016/0169-4332(94)90346-8 ↗
34. Three-dimensional quantitative in situ study of crack initiation and propagation in AA6061 aluminum alloy sheets via synchrotron laminography and finite-element simulations10.1016/j.actamat.2013.01.035 ↗
35. Self-healing materials with microvascular networks10.1038/nmat1934 ↗
36. Thermally-triggered dual In-situ self-healing metallic materials
37. Effect of heat treatment on microstructure and mechanical property of Al-10%Mg2Si alloy10.1016/j.jallcom.2015.12.128 ↗
38. Mechanical properties of a hot deformed Al-Mg2Si in-situ composite10.1016/j.msea.2018.04.064 ↗
39. Completing the picture through correlative characterization10.1038/s41563-019-0402-8 ↗
40. Huo · 2010
41. Review : liquid phase sintering10.1007/s10853-008-3008-0 ↗
42. Calorimetric study of pre-precipitation and precipitation in Al-Mg alloy10.1016/0956-7151(95)00023-O ↗
43. β′ and β precipitation in an Al-Mg alloy studied by DSC and TEM10.1016/S1359-6454(98)00053-6 ↗
44. The effect of Mg precipitation on the mechanical properties of 5xxx aluminum alloys10.1016/j.msea.2004.09.059 ↗
45. Severe plastic deformation induced sensitization of cryo-milled nanocrystalline Al-7.5 Mg10.1007/s11661-014-2227-z ↗
46. Atomistic study of pipe diffusion in Al-Mg alloys10.1016/j.actamat.2003.09.002 ↗
47. A collector plate mechanism-based classical intergranular precipitation model for al alloys sensitized at different temperatures10.1007/s11661-015-3110-2 ↗
48. Sintering kinetics at final stage sintering: Model calculation and map construction10.1016/j.actamat.2004.06.015 ↗
49. Microstructure and mechanical properties of multi-pass friction stir processed aluminum alloy 606310.1016/j.matdes.2013.07.062 ↗
50. High temperature rise dominated cracking mechanisms in ultra-ductile and tough titanium alloy10.1038/s41467-020-15772-1 ↗