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http://dx.doi.org/10.9725/kstle.2014.30.2.99

Fretting Corrosion Behavior of Silver-Plated Electric Connectors with Constant Displacement Amplitude  

Oh, Man-Jin (Graduate School of NID Fusion technology, Seoul National University of Science and Technology)
Kim, Min-Jung (Graduate School of NID Fusion technology, Seoul National University of Science and Technology)
Kim, Taek-Young (Graduate School, Dept. of Automotive Engineering, Seoul National University of Science and Technology)
Kang, Se-Hyung (Graduate School, Dept. of Automotive Engineering, Seoul National University of Science and Technology)
Kim, Ho-Kyung (Dept. of Mechanical and Automotive Engineering, Seoul National University of Science and Technology)
Publication Information
Tribology and Lubricants / v.30, no.2, 2014 , pp. 99-107 More about this Journal
Abstract
Fretting corrosion tests are conducted with a constant displacement amplitude using silver-plated brass coupons to investigate the effect of contact pressure on fretting corrosion. Three behaviors are identified based on the change in electric resistance and friction coefficient during the fretting test period, and the identified behaviors are dependent on the magnitude of the applied load. The failure cycle ($N_f$) with an electric resistance of 0.1 D cannot be achieved due to the adhesion behavior of the metal and metal contact under the higher applied load of 0.45 N. This suggests that an average contact pressure higher than 159 MPa for the silver-coated connector is desirable to gain an almost infinite lifetime. The relationship between the electric contact resistance (R) and the average contact pressure (p) can be written as $p=106.2{\times}{\Omega}^{-1.5}$.
Keywords
contact pressure; fretting corrosion; friction coefficient; electric connector; electric resistance;
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Times Cited By KSCI : 1  (Citation Analysis)
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