The effects of aging on the hardness and fatigue behavior of 2024 Al alloy/SiC composites

Bekheet, N.; Gadelrab, R.M.; Salah, Mohammed; El-Azim, A.N. Abd

doi:10.1016/s0261-3069(01)00072-3

Cited by 82 publications

(26 citation statements)

References 11 publications

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“…Also in the present work the testing was stopped after reaching its target period of 1E+6 cycles. The uniform distribution of TiC particles present in the composite knuckle suppressed the crack developed inside the knuckle during testing supported by literature [11,23].…”

Section: Fatigue Testing Resultssupporting

confidence: 75%

Evaluation of metal matrix composite to replace spheroidal graphite iron for a critical component, steering knuckle

Vijayarangan¹,

Rajamanickam²,

Sivananth³

2013

Materials & Design

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Section: Fatigue Testing Resultssupporting

confidence: 75%

Evaluation of metal matrix composite to replace spheroidal graphite iron for a critical component, steering knuckle

Vijayarangan¹,

Rajamanickam²,

Sivananth³

2013

Materials & Design

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“…The hardness (H) and reduced modulus (E r ) as a function of temperature, obtained from the nanoindentation experiments, were calculated following the well-known Oliver and Pharr Method [31]. [32,33] at two different aging temperatures (RT and 180°C). Since the literature data were available as Vickers hardness (HV) and Rockwell hardness (HRB), their values were converted to Brinell hardness values according to EN ISO 18265:2003 Table F.5 [34].…”

Section: Methodsmentioning

confidence: 99%

A high temperature nanoindentation study of Al–Cu wrought alloy

Koch

Abad

Renhart

et al. 2015

Materials Science and Engineering: A

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a b s t r a c tAluminum-copper alloys are widely used because of their low density and good mechanical strength accomplished with precipitation hardening. The alloy Al-Cu-Mg-Pb (AA2030) has been investigated before and after aging, at room temperature and at high temperatures. The mechanical properties at room temperature have been studied by Brinell hardness tests. T4 and T6 stages of the alloy have been investigated by differential scanning calorimetry up to 450°C, showing the precipitation of different clusters. High temperature nanoindentation has been used to characterize the mechanical properties up to 460°C in order to obtain a better understanding of the local dominating deformation mechanism in the material. A continuous decrease in the hardness and Young's modulus was found with the increasing temperature. The strain rate sensitivity of the alloy increased with the temperature from 0.022 at RT, up to 0.16 at 460°C. The activation volume was constant (around 31-41 b 3 ) up to 240°C, beyond this point a large increase was observed up to 178 b 3 . The results were comparable with similar materials, and indicate thermally activated processes.

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“…The alloy is then rapidly quenched to form a supersaturated solution 5,6 . Afterwards, the artificial aging is generally carried out at temperatures up to approximately 200 °C [7][8][9][10][11]. The usual precipitation sequence of the 7000 series Al-alloys can be summarized as: solid solution -GP zone -metastable ή -stable η (MgZn 2 ) [12] .…”

Section: Introductionmentioning

confidence: 99%

Effect of Quenching Rate and Pre-strain on the Strain Ageing Behaviors of 7075 Aluminum Alloys

Kaçar

Güleryüz

2015

Mat. Res.

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The mechanical properties of aluminum alloys are strongly dependent on the thermo-mechanical process so, the strain ageing behavior of 7075 Al-alloy was investigated in this study. A set of test pieces was solution heat treated at 480 °C for 2 h, water quenched (SHTWQ) then pre-strained for 8% in tension. The test samples were aged at 140 °C for 0.5, 1,2,3,4,6,8,10,12,24, 48, 72 and 96 h in a furnace. The other set of test samples were solution heat treated at 480 °C for 2 h, quenched in sand (SHTSQ) then pre-strained for 8% in tension. They were also aged at 140 °C for same intervals. The effect of strain ageing, on the mechanical properties of Al-alloy, was investigated by mean of hardness, and tensile tests. The results shown that, the quenching rate after solution heat treatment, ageing time and temperature, as well as pre-strain, play a very important role in the precipitationhardening associated with ageing process of the 7075 Al-alloy.

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The effects of aging on the hardness and fatigue behavior of 2024 Al alloy/SiC composites

Cited by 82 publications

References 11 publications

Evaluation of metal matrix composite to replace spheroidal graphite iron for a critical component, steering knuckle

Evaluation of metal matrix composite to replace spheroidal graphite iron for a critical component, steering knuckle

A high temperature nanoindentation study of Al–Cu wrought alloy

Effect of Quenching Rate and Pre-strain on the Strain Ageing Behaviors of 7075 Aluminum Alloys

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