|
| Effects of Marine Atmospheric Environment on Corrosion and Electrical Performance of Aluminum Alloy Electrical Connector Shell |
| Received:December 23, 2018 Revised:May 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2019.05.016 |
| KeyWord:aluminum alloy electrical connectors marine environment corrosion electrical properties |
| Author | Institution |
| WANG Ling |
Natural Environmental Test and Research Center of Science, Southwest Technology and Engineering Research Institute, Chongqing , China |
| ZHAO Quan-cheng |
Natural Environmental Test and Research Center of Science, Southwest Technology and Engineering Research Institute, Chongqing , China |
| YANG Wan-jun |
Natural Environmental Test and Research Center of Science, Southwest Technology and Engineering Research Institute, Chongqing , China |
|
| Hits: |
| Download times: |
| Abstract: |
| Objective To study the effects of marine atmospheric environment on performance of 2A12 and 6061 aluminum alloy electrical connectors. Methods Atmospheric environment test of 2A12 and 6061 aluminum alloy electrical connectors were carried out in Wanning Test Station for 4 a. Corrosion difference and change of electrical properties of two kinds of aluminum alloy electrical connectors were analyzed by morphology observation and electrical performance test. Results Coating bubbling, spalling and matrix corrosion occurred in the shell of two kinds of aluminum alloy electrical connectors. The corrosion degree of 6061 aluminum alloy electrical connector shell was higher than that of 2A12 aluminum alloy. Pitting corrosion and intergranular corrosion occurred in 2A12 aluminum alloy base, and corrosion occurred in 6061 aluminum alloy base. The accumulation of corrosion products resulted in cracking and spalling of nickel plating layer. Compared with continuity and compression strength, the insulation resistance of electrical connectors was more sensitive to marine atmosphere environment. Conclusion Electrical connectors of electroless nickel-plated aluminum alloy shell are unsuitable for long-term use in tropical marine atmospheric environment. |
| Close |
|
|
|