文献类型：期刊文献

中文题名：E690钢在热带海洋大气环境下的初期腐蚀行为研究

英文题名：Corrosion Behavior of E690 Steel in Tropical Marine Atmosphere

作者：胡杰珍[1];蓝文杰[1];邓培昌[2];吴敬权[1];曾俊昊[1]

机构：[1]广东海洋大学机械工程学院,湛江524088;[2]广东海洋大学化学与环境学院,湛江524088

年份：2023

卷号：43

期号：5

起止页码：1140

中文期刊名：中国腐蚀与防护学报

外文期刊名：Journal of Chinese Society For Corrosion and Protection

收录：CSTPCD、、Scopus、CSCD2023_2024、北大核心、CSCD、北大核心2020

基金：国家自然科学基金(51801033);广东省自然科学基金(2021A1515012129);湛江市科技发展专项(2022A01029)。

语种：中文

中文关键词：E690钢;热带海洋大气环境;腐蚀;锈层

外文关键词：E690 steel;tropical marine atmosphere;corrosion;rust layer

中文摘要：在湛江高温、高湿和高盐的热带海洋大气环境下,对E690钢进行了15、30、90、180和360 d的暴晒实验,采用失重法和电化学方法,结合宏观和微观腐蚀形貌观察以及腐蚀产物分析,研究了E690钢在热带海洋大气环境下的初期腐蚀行为。结果表明,E690钢开始腐蚀速率较高,随着暴晒时间的延长,腐蚀速率不断降低,在暴晒90 d后腐蚀速率变化较小,腐蚀趋于稳定。在暴晒90 d后,Cr已经扩散到锈层中,提高了锈层的致密性,Ni促进了γ-FeOOH向α-FeOOH相的转化,E690钢的耐腐蚀性提高,腐蚀速率降低。

外文摘要：The exposure tests of E690 steel were carried out in tropical marine atmosphere of high temperature,high humidity and high salt at Zhanjiang atmospheric corrosion test station for 15,30,90,180 and 360 d.Meanwhile,the initial corrosion behavior of E690 steel in tropical marine atmosphere was studied by mass loss method and electrochemical measurement,combined with macroscopic and microscopic corrosion morphology observation and corrosion product analysis.The results showed that the corrosion rate of E690 steel was higher at the beginning,and then decreased with the prolongation of exposure time.After 90 d of exposure,the corrosion rate changed little and the corrosion tended to be stable.After 90 d of exposure,Cr has diffused into the rust scale,thus improving the compactness of the rust scale.The participation of Ni promotes the transformation ofγ-FeOOH toα-FeOOH,which then improved the corrosion resistance of E690 steel and reduced its corrosion rate.