Corrosion resistance of Co-Cr-W coatings obtained by electrodeposition

被引：14

作者：

Kuznetsov, Vitaly V. ^{[1
]}

Filatova, Elena A. ^{[1
]}

Telezhkina, Alina V. ^{[1
]}

Kruglikov, Sergey S. ^{[1
]}

机构：

[1] DI Mendeleev Univ Chem Technol, Moscow, Russia

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2018年 / 22卷 / 07期

关键词：

Electrodeposition; Stellite-like alloy; Corrosion resistance; COBALT-CHROMIUM; NICKEL-CHROMIUM; MO ALLOY; MOLYBDENUM; BEHAVIOR; NI; PASSIVATION; PASSIVITY; FILMS;

D O I：

10.1007/s10008-018-3929-8

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Corrosion-resistant Co-Cr-W coatings are electrolytically deposited onto the surface of low-carbon (0.25 wt.% C) steel samples from a Cr(III) chloride-based water-dimethylformamide (DMF) bath. Polarization measurements show that corrosion current densities in both sodium chloride and Hank's solutions are about 10(-6) A cm(-2). As the obtained coatings contain a certain amount of cracks, they should be deposited onto the surface of copper underlayer in order to provide better protective ability. An XPS study showed that the surface of Co-Cr-W coatings is enriched with chromium compounds as a result of exposure to the corrosive solution.

引用

页码：2267 / 2276

页数：10

共 31 条

[21] The activation/depassivation of nickel-chromium-molybdenum alloys: An oxyanion or a pH effect-Part II [J].