Internal Friction in Commercial Aluminium Alloy AW-2007

Palček, Peter; Porubčan, Jakub; Blažek, D.; Trojanová, Zuzanka

doi:10.1016/j.proeng.2011.04.204

Cited by 5 publications

(7 citation statements)

References 7 publications

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“…Aluminium is a lightweight metal (density = 2.71 g/cm 3 ) having good electrical and thermal conductivity combined with good atmospheric corrosion resistance as well as corrosion resistance to many aqueous media 1 . Despite its cost, this remarkable combination of qualities makes aluminium a highly popular choice for many critical applications in the fields of aerospace, automotives, food handling, construction, heat exchange, and electrical transmission 2 .…”

Section: Introductionmentioning

confidence: 99%

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The inhibition effect of mad Honey on corrosion of 2007-type aluminium alloy in 3.5% NaCl solution

2013

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The inhibition effect of mad honey on corrosion of 2007-type aluminium alloy in 3.5% NaCl solution was investigated by Tafel extrapolarisation (TP), electrochemical impedance spectroscopy (EIS) and dynamic electrochemical impedance spectroscopy (DEIS). All the studied parameters exhibited good anti-corrosive properties against corrosion of 2007-type aluminium alloy in the test solution; the corrosion rates decreased with the increase of the mad honey concentration. The surface morphology of the alloy was examined under scanning electron microscopy (SEM) in the absence and presence of the inhibitor. The inhibitory adsorption processes of mad honey on the 2007-type aluminium alloy surfaces conformed to the Langmuir adsorption isotherm.

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Section: Introductionmentioning

confidence: 99%

“…The importance of aluminium alloys, especially in the automotive and aviation industries, has been growing in recent years. The automotive industry is greatly interested in using aluminium alloys because of their potential to reduce fuel consumption and exhaust emissions 3 .…”

Section: Introductionmentioning

confidence: 99%

The inhibition effect of mad Honey on corrosion of 2007-type aluminium alloy in 3.5% NaCl solution

2013

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“…Samples rods exhibited the shape of an hourglass with the length of 78 mm and the diameter of 12 mm. In the narrowest point of the sample shaft, the diameter was 5 mm (see Figure 8b) [32]. The resonant system was actuated by piezoceramic elements.…”

Section: Internal Friction Measurementsmentioning

confidence: 99%

“…The vibration amplitudes of a specimen were controlled by the loading voltage amplitude and measured by an electric current in the circuit. The experiment was controlled by the computer [32]. Internal friction experiments and predeformation of samples were performed at room temperature.…”

Section: Internal Friction Measurementsmentioning

confidence: 99%

Amplitude Dependent Internal Friction in Strained Magnesium Alloys of AZ Series

et al. 2020

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Amplitude dependent internal friction (ADIF) was measured in three AZ magnesium alloys. Two types of experiments were performed: ADIF was measured step by step with the increasing strain amplitude and ADIF was measured after predeformation of samples in torsion. All experiments were done at room temperature. The quality factor was used as a measure of internal friction (IF). The quality factor decreased in the region of smaller amplitudes, and approaching some critical amplitude, εcr, rapidly increased. This critical amplitude increased with increasing maximum strain amplitude and predeformation of samples up to ~6%. Such behavior can be explained by considering mobile solute atoms, which may migrate along the dislocation line in the region of smaller amplitudes and perpendicular to the dislocation line in the region of higher amplitudes. A competition between dragging and depinning of solute atoms with dislocation lines may very well explain the measured dependencies.

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“…The growing demand for the reduction of pollution, more sever control of the emissions and better fuel-efficiency constitutes the driving force behind weight reduction in the automotive industry. The characteristic properties of aluminum and aluminum alloys make them one of the most important non-ferrous metals today [1] and the ideal candidates to replace heavier materials like steel in cars in order to respond to the weight reduction demands [2]. When compared to structural steels, aluminum alloys have much better strength to weight ratio, good formability, good corrosion resistance, as well as a good recycling potential, thus giving them a very broad field of application [3], [4].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Factors Influencing Measurement Accuracy of Al Alloy Tensile Test Results

Podgornik

Žužek

Sedlaček

et al. 2016

Measurement Science Review

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In order to properly use materials in design, a complete understanding of and information on their mechanical properties, such as yield and ultimate tensile strength must be obtained. Furthermore, as the design of automotive parts is constantly pushed toward higher limits, excessive measuring uncertainty can lead to unexpected premature failure of the component, thus requiring reliable determination of material properties with low uncertainty. The aim of the present work was to evaluate the effect of different metrology factors, including the number of tested samples, specimens machining and surface quality, specimens input diameter, type of testing and human error on the tensile test results and measurement uncertainty when performed on 2xxx series Al alloy. Results show that the most significant contribution to measurement uncertainty comes from the number of samples tested, which can even exceed 1 %. Furthermore, moving from experimental laboratory conditions to very intense industrial environment further amplifies measurement uncertainty, where even if using automated systems human error cannot be neglected.

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Internal Friction in Commercial Aluminium Alloy AW-2007

Cited by 5 publications

References 7 publications

The inhibition effect of mad Honey on corrosion of 2007-type aluminium alloy in 3.5% NaCl solution

The inhibition effect of mad Honey on corrosion of 2007-type aluminium alloy in 3.5% NaCl solution

Amplitude Dependent Internal Friction in Strained Magnesium Alloys of AZ Series

Analysis of Factors Influencing Measurement Accuracy of Al Alloy Tensile Test Results

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