Extraneous Metal Deposits from Production Processes on Contact Materials

Haque, C.; Drozdowicz, M. H.; Frank, R. G.; Hanlon, James

doi:10.1109/tchmt.1983.1136153

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…These include diusion of base metal through plates [21], volume self-diusion [22] and normal force reduction by stress relaxation or creep of spring members [23,24]. In the process of`volume self-diusion', the micropeaks on the surface are thought to be reduced in size owing to a type of capillary action.…”

Section: Physical Failure Mechanismsmentioning

confidence: 99%

The automotive connector: The influence of powering and lubricating a fretting contact interface

Swingler

2000

Proceedings of the Institution of Mechanical Engineers, Part D:

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The increasing amount of telematic and other electronic systems in the modern motor vehicle demands higher performance and reliability in ever decreasing space. Over many years, connector technology has advanced but is still regarded as the weak link in the reliability chain. Fretting corrosion is thought to be the main failure mechanism causing intermittent high contact resistance.A low-frequency fretting apparatus is used in this study to induce fretting corrosion on contact samples. Low frequency is used to simulate the eect caused by dierent thermal expansion of connector components. Powering the contact interface under these fretting conditions delays the onset of high contact resistance. Joule heating is expected to accelerate surface oxidation, but electrical breakdown of ®lms dominated at the levels studied (2 A, 12 V open circuit). Lubricating the interface also improves performance which is shown to be due to at least three contact enhancement mechanisms: wear reduction, oxidation retardation and improved debris dispersal.

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Section: Physical Failure Mechanismsmentioning

confidence: 99%