| Presentation | 2017-02-17 Effect of Hardness on Wear and Abrasion Resistance of Silver Plating on Copper Alloy Shigeru Sawada, Song-zhu Kure-chu, Rie Nakagawa, Toru Ogasawara, Hitoshi Yashiro, Yasushi Saitoh, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This study is aimed at clarifying the mechanism of wear process for Ag plating with different hardness. The samples of Ag plating on Cu alloys were prepared as coupon and embossment specimens, which simulated terminal contacts. During the sliding test, the contact resistance and the friction coefficient versus sliding distance were measured. The surface observation, surface roughness and worn volume of the Ag films after wear tests were investigated. As results, the hard Ag plating film (120 Hv) exhibited higher contact resistance comparing to the soft Ag plating film (80 Hv). The soft Ag film delivered a larger wear scar on embossment and wider wear trace on coupon specimens compared to the hard one. The overall worn volume of hard Ag film was less than that of soft Ag film, which can be attributed to the fine crystalline structure on hard Ag. Moreover, the observation of tribofilms formed on the Ag films after wear tests suggested that a mixed-type of adhesive and abrasive wears occurred for both of soft and hard Ag films. Furthermore, the hard Ag plating exhibited longer stable region of friction coefficient than the soft one in a linear oscillating fretting test, indicating an enhanced fretting corrosion resistance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Connector / silver plating / friction coefficient / contact resistance / sliding friction |
| Paper # | R2016-63,EMD2016-90 |
| Date of Issue | 2017-02-10 (R, EMD) |
| Conference Information | |
| Committee | EMD / R |
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| Conference Date | 2017/2/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Omuron Kusatsu Factory |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yoshiteru Abe(NTT) / Hiroyasu Mawatari(NTT) |
| Vice Chair | / Tetsushi Yuge(National Defense Academy) |
| Secretary | (Sumitomo Denso) / Tetsushi Yuge(Fujielectric) |
| Assistant | Yoshiki Kayano(Univ. of Electro-Comm.) / Yuichi Hayashi(Tohoku Gakuin Univ.) / Maratt Zanikef(Kyushu Inst. of Tech.) / Nobuyuki Tamura(Hosei Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Electromechanical Devices / Technical Committee on Reliability |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effect of Hardness on Wear and Abrasion Resistance of Silver Plating on Copper Alloy |
| Sub Title (in English) | |
| Keyword(1) | Connector |
| Keyword(2) | silver plating |
| Keyword(3) | friction coefficient |
| Keyword(4) | contact resistance |
| Keyword(5) | sliding friction |
| Keyword(6) | |
| Keyword(7) | |
| 1st Author's Name | Shigeru Sawada |
| 1st Author's Affiliation | Sumitomo Electric Ltd.,(SEI) |
| 2nd Author's Name | Song-zhu Kure-chu |
| 2nd Author's Affiliation | Iwate University(Iwate Uni.) |
| 3rd Author's Name | Rie Nakagawa |
| 3rd Author's Affiliation | Iwate University(Iwate Uni.) |
| 4th Author's Name | Toru Ogasawara |
| 4th Author's Affiliation | Iwate University(Iwate Uni.) |
| 5th Author's Name | Hitoshi Yashiro |
| 5th Author's Affiliation | Iwate University(Iwate Uni.) |
| 6th Author's Name | Yasushi Saitoh |
| 6th Author's Affiliation | AutoNetworks Technologies, Ltd.(AN-Tech) |
| Date | 2017-02-17 |
| Paper # | R2016-63,EMD2016-90 |
| Volume (vol) | vol.116 |
| Number (no) | R-458,EMD-459 |
| Page | pp.pp.19-24(R), pp.19-24(EMD), |
| #Pages | 6 |
| Date of Issue | 2017-02-10 (R, EMD) |