两种铝合金接线板耐蚀性能的研究  

Corrosion Resistance of Two Al-alloys for Terminal Block

作　　者：陈云 杨丙坤 郝文魁 王晓芳 沈谢林 李震 赵蕊 CHEN Yun;YANG Bingkun;HAOWenkui;WANG Xiaofang;SHEN Xielin;LI Zhen;ZHAO Rui(State Key Laboratory of Advanced Power Transmission Technology,Global Energy Interconnection Research Institute Co.,Ltd.,Beijing 102401,China;State Grid Fujian Quanzhou Power Supply Company,Quanzhou 362018,China)

机构地区：[1]全球能源互联网研究院有限公司先进输电技术国家重点实验室,北京102401 [2]国网福建省电力有限公司泉州供电公司,泉州362018

出　　处：《腐蚀科学与防护技术》2019年第6期583-589,共7页Corrosion Science and Protection Technology

基　　金：国家电网有限公司科技项目(5455DW170013)~~

摘　　要：采用电化学方法研究了不同温度和不同NaHSO3浓度对5XXX和6XXX两种铝合金接线板材料的腐蚀行为影响。通过周浸腐蚀实验对两种铝合金材料的腐蚀形貌和腐蚀速率进行了分析。结果表明,25~55℃范围内,随温度的升高,6XXX铝合金的腐蚀速率增加;5XXX铝合金的腐蚀速率呈先增加后减小的趋势。随NaHSO3浓度的增加,6XXX铝合金的腐蚀速率变化明显。5XXX铝合金比6XXX铝合金耐蚀性好。The effect of temperature and NaHSO3 concentration on corrosion behavior of Al-alloys 5XXX and 6XXX,which are the common material of terminal blocks for transmission and transformation equipment of power grid,were investigated by electrochemical test.The corrosion morphology and corrosion rate of the two Al-alloys were assessed through alternative immersion test.The results show that in temperature range of 25~55℃,the corrosion rate of 6XXX Al-alloy increases with the increase of temperature,while the corrosion rate of 5XXX Al-alloy increases first and then decreases.With the increase of NaHSO3 concentration,the corrosion rate of 6XXX Al-alloy changed significantly.However,5XXX Al-alloy has better corrosion resistance than 6XXX Al-alloy.

关 键 词：铝合金 接线板 腐蚀 温度 NAHSO3 周浸腐蚀实验 

分 类 号：TG174.2[金属学及工艺—金属表面处理]