Enhanced fatigue lives in AA1050A/AA5005 laminated metal composites produced by accumulative roll bonding
Source abstract
Abstract
Abstract In this work laminated metal composites with alternating layers of commercial pure aluminum AA1050A and aluminum alloy AA5005 were produced by ARB. In order to vary the layer thickness and the number of interfaces different numbers of ARB cycles (4, 8 and 12) were applied. Subsequently, fatigue tests were performed and the related deformation and damage mechanisms were investigated. At high amplitudes crack growth occurs very straight through the whole sheet and is more or less unaffected by the interfaces of the individual layers in the composite. At lower amplitudes, where pronounced grain coarsening of the AA1050A layers occurs, the cracks deflect in front of the AA5005 layers and propagate in the coarsened AA1050A layers parallel to the bonding plane and the loading direction. Contrary to the composite, in both conventionally ARB processed AA1050A and AA5005 mono-material sheets grains are only locally coarsened around the crack tip and the fatigue cracks propagate very straight through the sheet width. Compared to AA1050A mono-material ARB sheets fatigue life and the cyclic stability are clearly enhanced in all composites.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Metal Forming Simulation Techniques · High-Velocity Impact and Material Behavior
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Overview of fatigue performance of Cu processed by severe plastic deformation10.1007/s11664-999-0181-0 ↗
2. Fatigue and microstructure of ultrafine-grained metals produced by severe plastic deformation10.1016/j.scriptamat.2004.05.012 ↗
3. Factors influencing the fatigue behavior of ferrous laminates10.1115/1.3225971 ↗
4. Fatigue crack propagation behavior in the vicinity of an interface between materials with different yield stresses10.1016/S0921-5093(00)00703-6 ↗
5. Homer · 1951
6. Mechanical behaviour of laminated metal composites10.1179/imr.1996.41.5.169 ↗
7. Tailoring materials properties by accumulative roll bonding10.1002/adem.201000044 ↗
8. Size effects of dislocation patterning in fatigued metals10.1016/0956-7151(94)00463-R ↗
9. On the cyclic behavior of ultra-fine grained copper produced by equi-channel angular pressing10.4028/www.scientific.net/MSF.312-314.593 ↗
10. Microstructural study of the parameters governing coarsening and cyclic softening in fatigued ultrafine-grained copper
11. Cyclic deformation and fatigue properties of very fine-grained metals and alloys10.1016/j.ijfatigue.2009.10.007 ↗
12. Cyclic deformation behavior of ultra-fine grained copper processed by accumulative roll-bonding
13. Strain incompatibility and its influence on grain coarsening during cyclic deformation of ARB copper10.1080/14786435.2012.741729 ↗
14. Fatigue behavior and damage characteristic of ultra-fine grain low-purity copper processed by equal-channel angular pressing (ECAP)10.1016/j.msea.2007.04.074 ↗
15. Kwan · 2011
16. May · 2008
17. Fatigue properties of bulk nanostructured materials
18. Cyclic deformation behaviour of ultrafine-grained copper produced by equal channel angular pressing
19. Effect of strain path on structure and mechanical behavior of ultra-fine grain Cu–Cr alloy produced by equal-channel angular pressing10.1016/j.actamat.2005.01.046 ↗
20. Cyclic deformation and fatigue properties of ultrafine grain size materials: current status and some criteria for improvement of the fatigue resistance
21. Fatigue limit and crack growth in ultra-fine grain metals produced by severe plastic deformation10.1007/s10853-006-0973-z ↗
22. Overview of fatigue properties of fine grain 5056 Al-Mg alloy processed by equal-channel angular pressing10.1016/S0921-5093(00)01682-8 ↗
23. Rissfortschritts- und Ermüdungsverhalten der Aluminiumlegierung EN AW-6060 nach ECAP und nachgelagerter Wärmebehandlung10.1002/mawe.200900481 ↗
24. Cyclic softening of ultrafine grain copper10.1016/S0921-5093(97)00689-8 ↗
25. Improvements of strength and fracture resistance by spatial material property variations10.1016/j.actamat.2014.01.034 ↗
26. Microstructure and mechanical properties of accumulative roll-bonded AA1050A/AA5005 laminated metal composites10.3390/met6030056 ↗
27. Stress- strain function for the fatigue of metals
28. Fatigue crack growth and related microstructure evolution in ultrafine grain copper processed by ECAP10.2320/matertrans.MD201123 ↗
29. Cyclic deformation and fatigue properties of ultrafine grain size materials: current status and some criteria for improvement of the fatigue resistance10.1557/PROC-634-B2.1.1 ↗
30. Recrystallization during cyclic deformation of ultrafine grained copper processed by ECAP
31. Fatigue strength, microstructural stability and strain localization in ultrafine-grained copper10.1016/j.msea.2006.02.029 ↗
32. Influence of grain boundaries on the deformation resistance: insights from an investigation of deformation kinetics and microstructure of copper after predeformation by ECAP10.1080/14786435.2013.828161 ↗