摘要
采用浸泡腐蚀试验和电化学测试,研究了含Ti低合金耐磨钢ANM450和低合金马氏体耐磨钢Hardox450在弱酸性、弱碱性和高矿化度3种模拟煤矿矿井水溶液和去离子水中的腐蚀行为,并分析了ANM450钢的腐蚀机理。结果表明:四种溶液对两种钢的腐蚀强弱程度依次为弱酸性溶液、弱碱性溶液、高矿化度溶液、去离子水;ANM450钢的耐腐蚀性能比Hardox450钢差,原因在于ANM450钢组织中存在TiC颗粒,腐蚀优先发生在TiC颗粒与基体结合界面的缺陷处。
The corrosion behavior of Ti-containing low alloy wear-resistant steel ANM450 and low alloy martensitic wear-resistant steel Hardox450 in three kinds of simulated coal mine water solutions with weak acidity,weak alkalinity and high salinity and deionized water was studied by immersion corrosion test and electrochemical test,and the corrosion mechanism of ANM450 steel was analyzed.The results showed that the corrosion degree of the four solutions to the two steels was in sequence of weak acid solution,weak alkaline solution,high salinity solution and deionized water.The corrosion resistance of ANM450 steel was worse than that of Hardox450 steel.The reason was that there were TiC particles in the microstructure of ANM450 steel,and the corrosion preferentially occurred at the defects of the interface between TiC particles and the matrix.
作者
杨鹏
马峰
王法涛
苗文成
陈华辉
YANG Peng;MA Feng;WANG Fatao;MIAO Wencheng;CHEN Huahui(School of Mechanical Electronic and Information Engineering,China University of Mining and Technology,Beijing 100083,China)
出处
《腐蚀与防护》
CAS
CSCD
北大核心
2023年第3期9-15,81,共8页
Corrosion & Protection
基金
国家重点研发计划资助项目(2017YFB0305104)。
