일정 변위 진폭조건에서의 은도금한 커넥터의 미동마멸부식 거동
Fretting Corrosion Behavior of Silver-Plated Electric Connectors with Constant Displacement Amplitude
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Fretting corrosion tests are conducted with a constant displacement amplitude using silver-platedbrass coupons to investigate the effect of contact pressure on fretting corrosion. Three behaviors are identifiedbased on the change in electric resistance and friction coefficient during the fretting test period, and the identifiedbehaviors are dependent on the magnitude of the applied load. The failure cycle (Nf) with an electric resistanceof 0.1 D cannot be achieved due to the adhesion behavior of the metal and metal contact under the higher appliedload of 0.45 N. This suggests that an average contact pressure higher than 159 MPa for the silver-coated connectoris 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 × Ω−1.5.
Abstract
Fretting corrosion tests are conducted with a constant displacement amplitude using silver-platedbrass coupons to investigate the effect of contact pressure on fretting corrosion. Three behaviors are identifiedbased on the change in electric resistance and friction coefficient during the fretting test period, and the identifiedbehaviors are dependent on the magnitude of the applied load. The failure cycle (Nf) with an electric resistanceof 0.1 D cannot be achieved due to the adhesion behavior of the metal and metal contact under the higher appliedload of 0.45 N. This suggests that an average contact pressure higher than 159 MPa for the silver-coated connectoris 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 × Ω−1.5.
참고문헌 (9)
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