期刊论文

Effect of Ethylene Glycol on Corrosion Behavior of 6063Aluminum Alloy in Valve Cooling System

中文

腐蚀与防护

1005-748X

2020

41

4

7-12

10.11973/fsyfh-202004002

国网浙江省电力有限公司科研项目(5211DS160023)。

本校为第一机构

通过浸泡腐蚀试验及电化学测试研究了乙二醇对换流站阀冷系统6063铝合金的腐蚀影响。结果表明:不论通电与否,乙二醇均加速6063铝合金的腐蚀,乙二醇含量越大,腐蚀越严重,且通入10mA直流电流后,腐蚀速率更大;同时,乙二醇被氧化生成乙醇酸、乙二酸等腐蚀性物质,加快6063铝合金腐蚀。因此,阀冷系统在实际应用中,应重视乙二醇对6063铝合金的腐蚀问题,并采取相应对策。

Effect of ethylene glycol on the corrosion behavior of 6063aluminum alloy in valve cooling system of converter station was investigated by immersion corrosion test and electrochemical test.The results show that ethylene glycol accelerated the corrosion of 6063aluminum alloy whether or not it was electrified,and the corrosion of 6063aluminum alloy was aggravated with the increase of ethylene glycol content.In addition,the corrosion rate was much higher when 10mA DC current was entered.Furthermore,ethylene glycol was oxidized to glycolic acid,ethane diacid and other corrosive substances,accelera...