刮板输送机中板用新型耐磨钢Ti60与ANM450的腐蚀行为

Corrosion behavior of the new wear resistant steels Ti60 and ANM450 applied for middle plates of scraper conveyor

摘要: 以刮板输送机中板用新型耐磨钢Ti60与ANM450为研究对象，分析了微观组织和相结构，采用全浸失重法、电化学测试法及XRD分析研究了2种耐磨钢在去离子水、腐蚀离子溶液、成垢离子溶液、模拟矿井水溶液4种水质中的腐蚀行为。结果表明，腐蚀程度排序均为腐蚀离子溶液＞模拟矿井水＞成垢离子溶液＞去离子水; 耐腐蚀性能Ti60＞Hardox450＞ANM450;腐蚀产物主要成分为Fe₂O₃、α -FeO(OH)和Fe (OH)₃，说明腐蚀反应主要是铁在溶液中的溶解。

Abstract: This paper looks into the microstructure and phase structure of the new wear-resistant steels Ti60 and ANM450 applied for middle plates of scraper conveyer.Their corrosion behaviors in deionized water, corrosion ion solution, scaling ion solution and simulated mine water were studied by weight loss method, electrochemical tests and XRD analysis.The results showed that the corrosion order was corrosion ion solution>simulated mine water>scaling ion solution>deionized water. The order of corrosion resistance was Ti60 > Hardox450 > ANM450.The corrosion products were Fe₂O₃、α -FeO(OH) and Fe (OH)₃, which indicated that iron was dissolved during the corrosion process.