Environmental effects on low cycle fatigue of 2024-T351 and 7075-T651 aluminum alloys

Lee, E.U.; Vasudévan, A.K.; Glinka, G.

doi:10.1016/j.ijfatigue.2008.11.012

Cited by 29 publications

(4 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Temper `f c T6 [14] 0.12 -0.75 T6 [15] 2.57 -0.9 7075-T6 [This work] 3.433 -0.794 T651 [15] 0.26 0.8 -T651 [16] 0.029 -0.169 T7351 [15] 6 The variations observed in Coffin-Manson constant (c) are more acceptable than those of the previously published shown in the Table 5. The constant `f compares well with similar type of alloys in the table and dose not correlate well with the true fracture ductility in a monotonic tensile test.…”

Section: Table (5): Comparisons Of Fatigue Properties With Previous P...mentioning

confidence: 74%

Low Cycle Fatigue of Precipitation Hardened Aluminum Alloy

Al-Fattal¹,

Mahmood²

2015

ETJ

View full text Add to dashboard Cite

In this work, the influence of different heat treatments on the mechanical properties and fatigue life under low cycles of wrought 7075 aluminum alloy was experimentally investigated. The heat treatments included peak ageing (T6), over ageing (T73) and annealing (O).The flat fatigue specimens were subjected to constant reverse bending load. The tests were performed at the laboratory environment with a frequency of 23.6 Hz and at a stress ratio (R) of -1.For each temper, strain-life graphs were obtained for specimens with notches in the form of central cylindrical holes made by drilling. The fatigue resistance of specimens with notches was compared to the results for notch-free specimens. It was observed that the presence of a stress raiser, such as a drilled hole, lowers the fatigue life for all tempers. However, the notch sensitivity of the fatigue life was different for each temper. The fatigue crack growth rate of T73 and annealed temper was investigated; the results showed that T73 treated sample exhibits higher crack growth resistance. Paris` equation was derived for each temper.

show abstract

Section: Table (5): Comparisons Of Fatigue Properties With Previous P...mentioning

confidence: 74%

Low Cycle Fatigue of Precipitation Hardened Aluminum Alloy

Al-Fattal¹,

Mahmood²

2015

ETJ

View full text Add to dashboard Cite

show abstract

“…In the literature about aluminum alloys, it can be found many studies based on Wöhler curves. [9][10][11][12][13] From another point of view, several analytical methods for predicting fatigue life can be used. They are classified according to three approaches such as strain, stress, and energy approach.…”

Section: Introductionmentioning

confidence: 99%

“…One of the most used diagrams to study fatigue life is the S – N curves or Wöhler curve which describes the fatigue life span with respect to the applied stress amplitude and exhibits the fatigue endurance limit. In the literature about aluminum alloys, it can be found many studies based on Wöhler curves 9–13 . From another point of view, several analytical methods for predicting fatigue life can be used.…”

Section: Introductionmentioning

confidence: 99%

Characterization of fatigue behavior of AA2024‐T351 aluminum alloy

Khadimallah,

Petit,

Hfaiedh

et al. 2023

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

The paper aims to investigate the fatigue behavior of the widely used AA2024‐T351 aluminum alloy in the aircraft industry. An experimental program was conducted to study the fatigue life and damage behavior under symmetrical tensile‐compressive loading. Cyclic tests in the low cycle fatigue regime were performed under fully reversed total strain amplitudes from 0.6% to 1.2%. The AA2024‐T351 alloy exhibited cyclic hardening until failure. Symmetric high cycle fatigue tests were also performed and the parameters for fatigue life estimation using the Manson–Coffin–Basquin model were identified. Elasto‐plastic behavior was analyzed through stress–strain hysteresis loops, evaluating kinematic and isotropic hardenings. Kinematic hardening was found to be strain amplitude dependent, unlike the isotropic hardening. The evolution of the isotropic variable with the percentage of fatigue life could be described by an exponential law. Fractography investigations showed crack initiation at the specimen border with quasi‐cleavage and then crack propagating by striation before ductile fracture.

show abstract

“…Some investigators have used in-situ corrosion fatigue experiments to simulate aircraft flying conditions. [37,40] Studies have also been carried out with precorroded specimens that were subsequently subjected to cyclic loading. [20,25,27] With regard to aircrafts, it is more probable that the pitting and fatigue events are temporally distinct.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Pitting on Fatigue Lives of Peak-Aged and Overaged 7075 Aluminum Alloys

Dey

Das

Basumallick

et al. 2010

Metall Mater Trans A

View full text Add to dashboard Cite

Fatigue lives at high peak stresses for peak-aged (T6) and overaged (T73) 7075 aluminum alloy were compared in the uncorroded and precorroded (pitted) states. Absolute fatigue lives of T73 samples were much higher than that of T6 in the virgin as well as precorroded condition, but the normalized life of T73 was less than that of T6, indicating an intrinsic crack initiation resistance in the former, borne out by fractography, which showed that fatigue cracks almost always initiated at pits for T73 but not for T6. The various crack initiation methodologies observed and the effect of pitting on fatigue lives in the two aging conditions are discussed.

show abstract

Environmental effects on low cycle fatigue of 2024-T351 and 7075-T651 aluminum alloys

Cited by 29 publications

References 21 publications

Low Cycle Fatigue of Precipitation Hardened Aluminum Alloy

Low Cycle Fatigue of Precipitation Hardened Aluminum Alloy

Characterization of fatigue behavior of AA2024‐T351 aluminum alloy

The Effect of Pitting on Fatigue Lives of Peak-Aged and Overaged 7075 Aluminum Alloys

Contact Info

Product

Resources

About