On the deformation and failure of Al 6061-T6 in plane strain tension evaluated through in situ microscopy
Source abstract
Abstract
We investigate deformation and failure of Al 6061-T6 in plane strain conditions through in situ scanning electron microscopy. The global behavior of the specimen, as well as the local deformation of the matrix material, second phase particles, and preexisting voids, is observed with a combination of high temporal/low spatial resolution images and low temporal/high spatial resolution images. It is found that the matrix dominates the deformation response, with the second phase particles and voids imparting little influence on the deformation under the moderate triaxiality levels encountered in this experiment. The initiation or nucleation of cracks is observed to occur by plastic slip.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metal Forming Simulation Techniques · Microstructure and mechanical properties · Metallurgy and Material Forming
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. Benzerga AA, Besson J, Pineau A (2004) Anisotropic ductile fracture part 1: experiments. Acta Mater 52:4623–463810.1016/j.actamat.2004.06.020 ↗
2. Benzerga AA, Leblond JB (2010) Ductile fracture by void growth to coalescence. Adv Appl Mech 44:169–30510.1016/S0065-2156(10)44003-X ↗
3. Benzerga AA, Leblond JB, Needleman A, Tvergaard V (2016) Ductile failure modeling. Int J Fract 201:29–8010.1007/s10704-016-0142-6 ↗
4. Biswas P, Narasimhan R, Kumar AM (2013) Interation between a notch and cylindrical voids in aluminum single crystals: experimental observations and numerical simulations. J Mech Phys Solids 61:1027–104610.1016/j.jmps.2012.12.002 ↗
5. Charsley P (1981) Dislocation arrangements in polycrystalline copper alloys fatigued to saturation. Mater Sci Eng 47:181–18510.1016/0025-5416(81)90044-6 ↗
6. Dao M, Li M (2001) A micromechanics study on strain-localization-induced fracture initiation in bending using crystal plasticity models. Philos Mag A 81(8):1997–202010.1080/01418610108216649 ↗
7. Davidkov A, Jain MK, Petrov RH, Wilkinson DS, Mishra RK (2012) Strain localization and damage development during bending of Al–Mg alloy sheets. Mater Sci Eng A 550:395–40710.1016/j.msea.2012.04.093 ↗
8. Fisher JR, Gurland J (1981) Void nucleation in spheroidizd carbon steels part 1: experimental. Metal Sci 15(5):185–19210.1179/030634581790426633 ↗
9. Ghahremaninezhad A, Ravi-Chandar K (2011) Ductile failure in polycrystalline OFHC copper. Int J Solids Struct 48(24):3299–331110.1016/j.ijsolstr.2011.07.001 ↗
10. Ghahremaninezhad A, Ravi-Chandar K (2012) Ductile failure behavior of polycrystalline Al 6061-T6. Int J Fract 174:177–20210.1007/s10704-012-9689-z ↗
11. Godfrey A, Hughes DA (2004) Physical parameters linking deformation microstructures over a wide range of length scale. Scr Mater 51:831–83610.1016/j.scriptamat.2004.06.019 ↗
12. Gross AJ, Ravi-Chandar K (2016) On the deformation and failure of Al 6061-T6 at low triaxiality evaluated through in situ microscopy. Int J Fract 200:185–20810.1007/s10704-016-0078-x ↗
13. Hancock JW, Mackenzie AC (1976) On the mechanisms of ductile failure in high-strength steels subjected to multi-axial stress-states. J Mech Phys Solids 24:147–16910.1016/0022-5096(76)90024-7 ↗
14. Hansen BL, Bronkhorst CA, Ortiz M (2010) Dislocation subgrain structures and modeling the plastic hardening of metallic single crystals. Model Simul Mater Sci Eng 18:05500110.1088/0965-0393/18/5/055001 ↗
15. Hughes DA, Hansen N (2000) Microstructure and strength of nickel at large strains. Acta Mater 48:2985–300410.1016/S1359-6454(00)00082-3 ↗
16. Jiang J, Britton TB, Wilkinson AJ (2015) Evolution of intragranular stresses and dislocation densities during cyclic deformation of polycrystalline copper. Acta Mater 94:193–20410.1016/j.actamat.2015.04.031 ↗
17. Kuna M, Sun DZ (1996) Three-dimensional cell model analyses of void growth in ductile materials. Int J Fract 81:235–25810.1007/BF00039573 ↗
18. Orowan E (1948) Fracture and strength of solids. Rep Prog Phys 12:185–23210.1088/0034-4885/12/1/309 ↗
19. Puttick KE (1959) Ductile fracture in metals. Philos Mag 4(44):964–96910.1080/14786435908238272 ↗
20. Richelsen AB, Tvergaard V (1994) Dilatent plasticity or upper bound estimates for porous ductile solids. Acta Metall Mater 42:2561–257710.1016/0956-7151(94)90198-8 ↗
21. Sabnis PA, Maziere M, Forest S, Arakere NK, Ebrahimi F (2012) Effect of secondary orientation on notch-tip plasticity in superalloy single crystals. Int J Plast 28:102–12310.1016/j.ijplas.2011.06.003 ↗
22. Sarkar J, Kutty TRG, Conlon KT, Wilkinson DS, Embury JD, Lloyd DJ (2001) Tensile and bending properties of AA5754 aluminum alloys. Mater Sci Eng A 316:52–5910.1016/S0921-5093(01)01226-6 ↗
23. Tipper CF (1949) The fracture of metals. Metallurgia 39:133–137
24. Wang R, Mughrabi H, McGovern S, Rapp M (1984) Fatigue of copper single crystals in vacuum an dair. I. Persistent slip bands and dislocation microstructures. Mater Sci Eng 65:219–23310.1016/0025-5416(84)90084-3 ↗