Corrosion behaviour of thermally sprayed Al and Al/SiCp composite coatings on ZE41 magnesium alloy in chloride medium

被引：53

作者：

Carboneras, M. ^{[1
]}

Lopez, M. D. ^{[1
]}

Rodrigo, P. ^{[1
]}

Campo, M. ^{[1
]}

Torres, B. ^{[1
]}

Otero, E. ^{[1
]}

Rams, J. ^{[1
]}

机构：

[1] Univ Rey Juan Carlos, ESCET, Dpto Ciencia & Ingn Mat, Madrid 28933, Spain

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 03期

关键词：

Magnesium; Metal coatings; Metal matrix composite; Polarization; SEM; HEAT-TREATMENT; ALUMINUM; MICROSTRUCTURE; PROTECTION;

D O I：

10.1016/j.corsci.2009.10.040

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Thermally sprayed Al and Al/SiCp composite coatings have been deposited on ZE41 magnesium alloy and mechanical compaction at room temperature was applied to the Al and Al/SiCp coatings to reduce their porosity. Corrosion behaviour of coated samples was evaluated and compared to that of uncoated substrate in 3.5 wt.% NaCl solution using electrochemical measurements. Al and Al/SiCp composite coatings reduced the corrosion current density of Mg-Zn alloys by three and two orders of magnitude, respectively, and reductions up to four orders of magnitude were obtained after mechanical compaction. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：761 / 768

页数：8

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