Fretting corrosion degradation of non-noble metal coated contact surfaces: A theoretical model

Ji, Xiang-Ying; Wu, Yongping; Binghai, Lü; Pascucci, Vincent C.

doi:10.1016/j.triboint.2016.01.006

Cited by 5 publications

(5 citation statements)

References 20 publications

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“…In our work, one of the main factors influencing the lifetime of the connector, the fretting corrosion process, was studied using experimental and numerical tools to develop the testing standards for electric cars with the help of this knowledge. When the contact surfaces have oscillatory displacement at small sliding amplitude (smaller than 100 μm), electrical insulating oxidation products are continuously generated at the contact surfaces and cause fretting corrosion [1][2][3][4][5][6]. When fretting corrosion occurs, the contact resistance is increased, resulting in malfunction of the electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Study on Fretting Corrosion of Tin-Coated Electrical Contacts

MARGITAI¹,

Gal²,

Szávai³

et al. 2019

PES

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The examination of the failure of electric connectors of electric powered vehicles is at the forefront of current vehicle developments, because the connector's operating time increases significantly in comparison with internal combustion engine vehicles. It was observed that the low amplitude fretting corrosion plays the most important role in failure, so the lifetime of the failure process is decisive in the life span of the connector. Typically, the failure of an electrical connector in terms of product is an increase in electrical resistance that can even cause malfunction of the drive within the product expected lifetime because of the generated Joule heat that causes temperature rise. The aim of our work is to study the fretting corrosion process in a given geometry and material quality of electrical connection by experiment and numerical model. In the experimental test, an experimental construction was set which simulated contact properties of the built-in connectors. Tests for failure-life were performed as a function of the clamping force of the mating members and the amplitude of the relative displacement of the contact surfaces, of which magnitude can be typically for fretting. The change in resistance at the contact surface was measured and examined when this value reached the limit value for failure, thus determining the life span for fretting corrosion. The experimental set-up was then modelled by finite element method. The purely elastic FE model made it possible to model the gradual removal of the material for given force-amplitude-frequency values by using the Archard's theory. The valid wear coefficient was searched that creates the same wear crater in the calculation as in the measurements. Then, using the measured data, the FE analysis revealed the mechanical stress conditions, the electrical current flow conditions, and the resulting thermal conditions during the wear process both on and below the contact surface, which provides additional information on the details of the fretting corrosion process.

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Section: Introductionmentioning

confidence: 99%

Study on Fretting Corrosion of Tin-Coated Electrical Contacts

MARGITAI¹,

Gal²,

Szávai³

et al. 2019

PES

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“…Fretting damage prevails among all quasi‐static loaded assemblies in modern industrial and biomedical fields such as aeronautics, nuclear reactor components, artificial implant engineering, power plant machinery, and machine components . It is usually caused by small‐amplitude oscillatory movement derived from mechanical vibrations, cyclic loads, electromagnetic shocks, and thermal cycling .…”

Section: Introductionmentioning

confidence: 99%

“…It is usually caused by small‐amplitude oscillatory movement derived from mechanical vibrations, cyclic loads, electromagnetic shocks, and thermal cycling . Fretting damage falls into 3 following modes: fretting wear (the result of external vibration), fretting fatigue (one of the members of contact being subjected to cyclic stress), and fretting corrosion (involved in chemical or electrochemical reactions in corrosive media) . Fretting wear is a complex synergistic damage mechanism .…”

Section: Introductionmentioning

confidence: 99%

“…Fretting damage prevails among all quasi-static loaded assemblies in modern industrial and biomedical fields such as aeronautics, nuclear reactor components, artificial implant engineering, power plant machinery, and machine components. [1][2][3][4][5] It is usually caused by smallamplitude oscillatory movement derived from mechanical vibrations, cyclic loads, electromagnetic shocks, and thermal cycling. 6 Fretting damage falls into 3 following modes: fretting wear (the result of external vibration), 7,8 fretting fatigue (one of the members of contact being subjected to cyclic stress), 9,10 and fretting corrosion (involved in chemical or electrochemical reactions in corrosive media).…”

Section: Introductionmentioning

confidence: 99%

“…6 Fretting damage falls into 3 following modes: fretting wear (the result of external vibration), 7,8 fretting fatigue (one of the members of contact being subjected to cyclic stress), 9,10 and fretting corrosion (involved in chemical or electrochemical reactions in corrosive media). 3,[11][12][13] Fretting wear is a complex synergistic damage mechanism. 14 It is mainly governed by 1 or more wear mechanisms including abrasive, adhesive, flow, fatigue, corrosive, melt, and diffusive wear.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of displacement amplitude on fretting wear of 304 stainless steel in air and sea water

Ning

Wang

et al. 2018

Lubrication Science

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The fretting wear behaviours of 304 stainless steel at different displacement amplitudes were investigated by using a SRV‐IV fretting tester in air and sea water, respectively. In air, the friction coefficient as well as the fretting damage of 304 stainless steel increased with the increase of displacement amplitude, and the fretting regime changed from partial slip regime to gross slip regime. Correspondingly, the wear mechanisms transformed from local fatigue and slight oxidation to the combination damages of adhesion wear, abrasive wear, and oxidation. Compared with the dry friction conditions, sea water had a strong effect on fretting behaviour of 304 stainless steel. Adhesion wear was effectively suppressed due to the cooling and lubrication effect of sea water. Therefore, friction coefficient and wear depth decreased significantly. And the damages of 304 stainless steel in sea water were mainly caused by abrasive wear, slight adhesion wear, and corrosion wear.

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Effect of normal forces on fretting corrosion of tin-coated electrical contacts

Han

Kim

2017

Microelectronics Reliability

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Fretting corrosion degradation of non-noble metal coated contact surfaces: A theoretical model

Cited by 5 publications

References 20 publications

Study on Fretting Corrosion of Tin-Coated Electrical Contacts

Study on Fretting Corrosion of Tin-Coated Electrical Contacts

Effect of displacement amplitude on fretting wear of 304 stainless steel in air and sea water

Effect of normal forces on fretting corrosion of tin-coated electrical contacts

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