|
|
|
| pH-dependent corrosion initiation behavior induced by inclusions of low alloy steel in simulated marine environments |
| Heng Ma1, Zhong-xue Wang1, Yue Liu2, Yue-xiang Wang1, Teng-fei Wang1, Qing-pu Zhang1, Zhong-yu Cui2 |
| 1 Yinshan Section Steel Corporation of Laiwu Steel Group Ltd., Jinan 271104, Shandong, China 2 School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, Shandong, China |
|
|
|
|
Abstract The initial pitting corrosion behavior triggered by inclusions in S420 low alloy steel in acidic artificial seawater (ASW) and weak-alkaline ASW was characterized. The geometric data of the corrosion pits formed in the ASW with different pH were calculated. The pH of the ASW has an obvious influence on the pit shape. The pits in acidic ASW exhibit a funnel shape, while those in weak-alkaline ASW present a cone shape with a larger pit volume. The reason for the difference in the morphology and size of the corrosion pits induced by inclusion is that it is easier to trigger micro-galvanic corrosion in different structures and different areas of the pits in the acidic environment.
|
|
|
|
|
|
| Cite this article: |
|
Heng Ma,Zhong-xue Wang,Yue Liu, et al. pH-dependent corrosion initiation behavior induced by inclusions of low alloy steel in simulated marine environments[J]. Journal of Iron and Steel Research International, 2023, 30(10): 2067-2079.
|
|
|
|
| [1] |
Yi-peng Sun, Hao-jian Duan, Li-feng Zhang. A boundary layer model for capture of inclusions by steel–slag interface in a turbulent flow[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(6): 1101-1108. |
| [2] |
Qi Quan, Zhi-xiao Zhang, Tian-peng Qu, Xiang-long Li, Jun Tian, De-yong Wang. Physical and numerical investigation on fluid flow and inclusion removal behavior in a single-strand tundish[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(6): 1182-1198. |
| [3] |
Pu Wang, Hong Xiao, Xi-qing Chen, Hai-yan Tang, Jia-quan Zhang. Effect of channel diameter on magneto-thermal conversion ratio and consistency of each strand in a multi-strand induction heating tundish[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(6): 1199-1210. |
| [4] |
Qing-hua Xie, Pei-yuan Ni, Toshihiro Tanaka, Mikael Ersson, Ying Li. Flow field, heat transfer and inclusion behavior in a round bloom mold under effect of a swirling flow submerged entry nozzle[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(6): 1211-1221. |
| [5] |
Hai-hui Zhang, Hui-hui Xiong, Jing Qin, Jian-bo Zhang. Mechanism of ferrite nucleation induced by Y2O2S inclusion in low carbon steel[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(6): 1291-1299. |
| [6] |
Cheng-song Liu, Wei Liu, Hua Zhang, Hong-wei Ni. Transformation of nanoscale inclusions in 316L stainless steel processed by laser beam powder bed fusion during isothermal heating[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(4): 795-807. |
|
|
|
|
2023, Vol. 30 
