Protective conversion coatings based on rare-earth compounds for passivation of galvanized steel

被引：5
|
作者：
Abrashov, A. A. [1 ]
Sundukova, A. V. [1 ]
Grigoryan, N. S. [1 ]
Asnis, N. A. [1 ]
Khazanov, N. A. [1 ]
Chudnova, T. A. [1 ]
Zheludkova, E. A. [1 ]
机构：
[1] D Mendeleev Univ Chem Technol Russia, Miusskaya Sq 9, Moscow 125047, Russia
来源：
INTERNATIONAL JOURNAL OF CORROSION AND SCALE INHIBITION | 2022年 / 11卷 / 04期
关键词：
corrosion protection; conversion coatings; surface treatment; chromate-free passivation; rare earth metals; CHROMATE-FREE PASSIVATION; CORROSION-RESISTANCE; ELECTROGALVANIZED STEEL; ALLOYS; FILMS;
D O I：
10.17675/2305-6894-2022-11-4-22
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The publication deals with the development of a process for applying protective conversion coatings containing rare earth metals (REMs) on the surface of galvanized steel to replace environmentally hazardous chromating processes. The compositions of solutions for the deposition of individual protective/decorative or adhesive coatings have been optimized, and the physicochemical and mechanical properties of coatings that might be potential alternatives to toxic chromate coatings have been studied. The addition of rare-earth metal (REM) compounds and citric acid to the solutions increases the protective ability, abrasion resistance, frost and heat resistance of the coatings being formed, and improves the appearance and thickness uniformity.
引用
收藏
页码：1749 / 1762
页数：14
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