Mitigation of corrosion of carbon steel in a marine atmospheric via weak deoxidationMitigation of corrosion of carbon steel in a marine atmospheric via weak deoxidationW.B. Liu et al.

被引：0

作者：

Wen-bin Liu ^{[1
]}

Feng Huang ^{[2
]}

Feng-jun Lang ^{[1
]}

Qian Hu ^{[2
]}

Yun-feng Xu ^{[1
]}

Wei Yuan ^{[1
]}

Shi-qi Zhang ^{[1
]}

Jing Liu ^{[1
]}

机构：

[1] Wuhan University of Science and Technology,The State Key Laboratory of Refractories and Metallurgy

[2] R&D Center of Wuhan Iron & Steel Baosteel Central Research Institute,undefined

来源：

Journal of Iron and Steel Research International | 2025年 / 32卷 / 5期

关键词：

Carbon steel; Weak deoxidation; Element segregation; Corrosion resistance; Total oxygen content;

D O I：

10.1007/s42243-024-01390-4

中图分类号：

学科分类号：

摘要：

A low-carbon, low-cost, and high-efficient method was reported for remarkably improving corrosion resistance of C–Mn structural steel by weak deoxidation. The results showed that, with the total oxygen content (wOT) increasing in the tested steel from 41 × 10−6 to 195 × 10−6, both the degree of element segregation and the level of banded microstructure weakened, presenting the lower potential difference between pearlite (P) and ferrite (F), and then smaller galvanic corrosion driving force, and thus effectively improving general corrosion properties. In addition, with wOT growing up, the number and size of inclusions increased, and the shape also changed from long chain or small particle to large particle ball with typical mosaic structure, which could effectively inhibit the preferential dissolution of local component due to multiple complex interfaces, and correspondingly suppress the pitting susceptibility. However, the impact toughness at low temperature of the tested steel reduced with wOT increasing, and then, taking the mechanical properties and corrosion resistance all into account, 160 × 10−6 was the optimal oxygen content within the present scope.

引用

页码：1320 / 1340

页数：20