当前位置: X-MOL 学术Surf. Topogr.: Metrol. Prop. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Improvement of corrosion resistance of galvanization/nickel/chrome plating low carbon steels in H2SO4 under dynamic condition
Surface Topography: Metrology and Properties ( IF 2.0 ) Pub Date : 2021-08-11 , DOI: 10.1088/2051-672x/ac19f0
Mohammad Asaduzzaman Chowdhury 1 , Md Shamim Reza 2 , Nayem Hossain 3 , Md Ramjan Ali 1 , Md Arefin Kowser 4 , Md Bengir Ahmed Shuvho 5
Affiliation  

In this work, the corrosion resistance of metallic coating (ISO 1416) deposited on AISI 1080 low carbon steel has been investigated under static and dynamic conditions (flow rate 30 rpm). The coated steels have been immersed into aqua solution of H2SO4 at 80 C temperature up to 3 h where pH value 1 is maintained. The corroded surfaces are characterized by SEM, XRD, ATR, EDS and Tafel extrapolation methods. Results show that the corrosion under static condition is higher than that of dynamic condition both for coated and uncoated surfaces. The coated steels exhibit lower corrosion in comparison of uncoated steels. The low carbon steel experiences significant corrosion resistance property in combined effects of dynamic environment and coating surface. Corrosion rate is calculated by following weight loss method. The corrosion damage is remarkably high for low carbon steels. The nickel-plating steel exhibits more corrosion resistance in H2SO4 corrosive medium when comparing with chrome plating steel. On the other hand, chrome plating steel happens more corrosion resistance in comparison of galvanized steel. Besides, lower flow rate makes higher rate of corrosion and lower depth of penetration. It is expected that the outcomes of this work will contribute to the improvement of different concerned mechanical and tribological processes where the corrosion concerning issue.



中文翻译:

镀锌/镀镍/镀铬低碳钢在H2SO4动态条件下耐蚀性的提高

在这项工作中,研究了沉积在 AISI 1080 低碳钢上的金属涂层 (ISO 1416) 在静态和动态条件下(流速 30 rpm)的耐腐蚀性。将涂层钢浸入 H 2 SO 4 的水溶液中在 80 C 的温度下最多 3 小时,其中 pH 值保持为 1。通过SEM、XRD、ATR、EDS和Tafel外推法对腐蚀表面进行表征。结果表明,涂​​层和未涂层​​表面在静态条件下的腐蚀高于动态条件下的腐蚀。与未涂层钢相比,涂层钢表现出较低的腐蚀。低碳钢在动态环境和涂层表面的共同作用下具有显着的耐腐蚀性能。腐蚀率按以下失重法计算。低碳钢的腐蚀损伤非常高。镀镍钢在 H 2 SO 4 中表现出更好的耐腐蚀性与镀铬钢相比,腐蚀性介质。另一方面,与镀锌钢相比,镀铬钢具有更高的耐腐蚀性。此外,较低的流速会导致较高的腐蚀速率和较低的渗透深度。预计这项工作的成果将有助于改善涉及腐蚀问题的不同相关机械和摩擦学过程。

更新日期:2021-08-11
down
wechat
bug