Integral effects of Ca and Sb on the corrosion resistance for the high strength low alloy steel in the tropical marine environment

被引：57
作者：
Zhang, Tianyi [1 ,2 ]
Li, Yilun [1 ,2 ]
Li, Xuan [1 ,2 ]
Liu, Chao [1 ,2 ]
Yang, Shufeng [3 ]
Yang, Zhigang [4 ]
Li, Xiaogang [1 ,2 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Key Lab Corros & Protect, Minist Educ, Beijing, Peoples R China
[2] Univ Sci & Technol Beijing, Natl Mat Corros & Protect Data Ctr, Beijing, Peoples R China
[3] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing, Peoples R China
[4] Delong Steel Co LTD, Technol Ctr, Xingtai, Hebei, Peoples R China
来源：
CORROSION SCIENCE | 2022年 / 208卷
基金：
中国国家自然科学基金;
关键词：
High strength low alloy steel; Ca and Sb-microalloyed treatment; Tropical marine atmosphere; Localized corrosion; Corrosion resistance; WEATHERING STEEL; LOCALIZED CORROSION; RUST LAYER; BEHAVIOR; INCLUSIONS; INDUSTRIAL; INITIATION; ANTIMONY; CRACKING; SN;
D O I：
10.1016/j.corsci.2022.110708
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The integral effects of Ca and Sb on the corrosion properties of E690 steel were studied in a simulated tropical marine environment through immersion and dry/wet cyclic tests, focusing on localized and long-term corrosion properties. Results showed that Ca improved the corrosion resistance of steel by modifying the MnS inclusion into MnS-CaAl2O4 inclusion, and Sb enhanced the consumption of H+ to decrease the electrochemical activity on steel surface. The protectiveness of the rust layer was increased by the enrichment of Ca and Sb, and the alka-lization caused by Sb promoted appositional enrichment of Sb and Ca in the rust layer.
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页数：17
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