High-cycle fatigue strength of ultrafine-grained 5483 Al-Mg alloy at low and elevated temperature in comparison to conventional coarse-grained Al alloys

Majchrowicz, Kamil; Pakieła, Zbigniew; Giżyński, Maciej; Karny, Maciej; Kulczyk, Mariusz

doi:10.1016/j.ijfatigue.2017.09.019

Cited by 13 publications

(9 citation statements)

References 48 publications

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“…Reducing the grain size increases the fraction of grain boundaries within the material and correspondingly increases the mechanical strength of the material. The application of severe plastic deformation (SPD) [5,6] leads to grain formation and achieves an ultrafine-grained (UFG) microstructure, which substantially increases mechanical strength. Following SPD, 7XXX alloys exhibited an increase in tensile strength from 228 to 434 MPa [7].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Heat Treatment on the Mechanical Properties and Corrosion Resistance of the Ultrafine-Grained AA7075 Obtained by Hydrostatic Extrusion

et al. 2022

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In this paper, the corrosion resistance and mechanical properties of the 7075 aluminum alloy are studied. The alloy was deformed by hydrostatic extrusion and then aged both naturally and artificially. Results are compared with those of coarse-grained material subjected to T6 heat treatment. The aim of the research is to find the optimal correlation between the mechanical properties and the corrosion resistance of the alloy. To this end, static tensile tests with subsequent fractography, open circuit potential, and potentiodynamic polarization tests in 0.05 M NaCl were conducted. Obtained results show that a combination of precipitate hardening and a deformed microstructure leads to increased mechanical strength with high anisotropy due to the presence of fibrous grains. Plastic deformation increases susceptibility to corrosion due to the increased number of grain boundaries, which act as paths along that corrosion propagates. However, further artificial aging incurs a positive effect on corrosion resistance due to changes in the chemical composition of the matrix as a result of the precipitation process.

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Section: Introductionmentioning

confidence: 99%

The Influence of Heat Treatment on the Mechanical Properties and Corrosion Resistance of the Ultrafine-Grained AA7075 Obtained by Hydrostatic Extrusion

et al. 2022

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“…Furthermore, the gain or loss in fatigue resistance due to grain refinement into the UFG regime is likely to be dependent on the intended life and on the loading mode. A higher tensile strength as compared to coarse grained (CG) materials is expected to improve the resistance of UFG materials to high or very high cycle fatigue (denoted below as HCF and VHCF), which is generally observed [1,2,[5][6][7], while a lower ductility is expected to reduce the performance in low-cycle fatigue (LCF), which is generally observed in strain-controlled tests [1,[8][9][10], but not in stress-controlled tests [11,12]. While the entire S-N curve of a UFG material generally stands above that of its CG counterpart, their strainlife curves often cross [1,4].…”

Section: Introductionmentioning

confidence: 99%

“…The S-N curves did not exhibit any horizontal asymptote. Majchrowicz et al [7] investigated the HCF behavior of a UFG 5083 alloy obtained by hydro-extrusion through repeated tension tests at −50°C, 25°C and 100°C. At RT, they observed a significant enhancement in fatigue strength of the UFG material, compared to the coarse-grained material in the range 5 10 5 −2 10 6 cycles.…”

Section: Introductionmentioning

confidence: 99%

Ultrafine versus coarse grained Al 5083 alloys: From low-cycle to very-high-cycle fatigue

Meng

Goyal

Doquet

et al. 2019

International Journal of Fatigue

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A B S T R A C TThe fatigue performance of coarse and ultrafine-grained (UFG) 5083 Al alloy were compared, from low to very high cycle fatigue. The UFG alloy exhibited cyclic hardening and predominant kinematic hardening. At high plastic strain amplitude (and only in this regime), it showed easier crack initiation and a lower fatigue resistance. Its resistance to HCF was hardly better than that of its coarse grained counterpart until 2.10 6 cycles, but 43% higher in VHCF, until 5.10 8 cycles. Beyond that point, internal crack initiation occurred, and the fatigue resistance of the UFG material decreased, which was explained using Fracture Mechanics.

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“…High cyclic fatigue life of a UFG Al 5083 alloy was studied by Singh et al 15 The fatigue response of a fine-grained ZK60 magnesium alloy was investigated by Vinogradov. 16 High-cycle fatigue performance of a UFG Al-Mg alloy at different temperatures was studied by Majchrowicz et al 17 The low-cycle to very-high-cycle fatigue properties of a UFG and coarse-grained Al 5083 alloy were studied by Meng et al 18 Today, the UFG materials have gradually found their own place in industrial applications. A UFG material can serve as a member of mechanical joints.…”

Section: Introductionmentioning

confidence: 99%

“…16 High-cycle fatigue performance of a UFG Al–Mg alloy at different temperatures was studied by Majchrowicz et al. 17 The low-cycle to very-high-cycle fatigue properties of a UFG and coarse-grained Al 5083 alloy were studied by Meng et al. 18…”

Section: Introductionmentioning

confidence: 99%

Fatigue life evaluation of an ultrafine-grained pure aluminum

Babaei

Esmaeili-Goldarag

Jafarzadeh

2019

Proceedings of the Institution of Mechanical Engineers, Part L:

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The aim of this study is an experimental and numerical investigation of the fatigue behavior of a notched ultrafine-grained pure aluminum processed by strip cyclic extrusion-compression method. In this regard, the fatigue experiments were conducted for the unprocessed and strip cyclic extrusion-compression processed specimens under various cyclic loads. In the numerical analyses, a dislocation dynamic constitutive material model which tracks the microstructure evolution was implemented for numerical estimation of the values of fatigue strength reduction factor via the volumetric approach. Considering the three-dimensional effect near the plate hole, the variation of the fatigue notch factor through the thickness of the plate was investigated and the obtained results showed that maximum fatigue strength reduction factor was occurred in the middle of the plate due to the symmetry of specimen geometry and loading condition. The investigation reveals a good agreement between the numerical and experimental lives. The results showed although the smooth processed specimens have higher fatigue strength in comparison of the unprocessed ones, the notched processed specimens have lower fatigue strength in comparison of the unprocessed ones.

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High-cycle fatigue strength of ultrafine-grained 5483 Al-Mg alloy at low and elevated temperature in comparison to conventional coarse-grained Al alloys

Cited by 13 publications

References 48 publications

The Influence of Heat Treatment on the Mechanical Properties and Corrosion Resistance of the Ultrafine-Grained AA7075 Obtained by Hydrostatic Extrusion

The Influence of Heat Treatment on the Mechanical Properties and Corrosion Resistance of the Ultrafine-Grained AA7075 Obtained by Hydrostatic Extrusion

Ultrafine versus coarse grained Al 5083 alloys: From low-cycle to very-high-cycle fatigue

Fatigue life evaluation of an ultrafine-grained pure aluminum

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