Influence of temperature on the atmospheric corrosion of the Mg-Al alloy AM50

被引：111

作者：

Esmaily, M. ^{[1
]}

Shahabi-Navid, M. ^{[1
]}

Svensson, J. -E. ^{[1
]}

Halvarsson, M. ^{[2
]}

Nyborg, L. ^{[3
]}

Cao, Y. ^{[3
]}

Johansson, L. -G. ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Chem & Biol Engn, SE-41296 Gothenburg, Sweden

[2] Chalmers Univ Technol, Dept Appl Phys, SE-41296 Gothenburg, Sweden

[3] Chalmers Univ Technol, Dept Mat & Mfg Technol, SE-41296 Gothenburg, Sweden

来源：

CORROSION SCIENCE | 2015年 / 90卷

关键词：

Magnesium; Alloy; SEM; Atmospheric corrosion; MAGNESIUM ALLOYS; RELATIVE-HUMIDITY; BEHAVIOR; NACL; CHLORIDE; AZ91D; MICROSTRUCTURE; WATER; ZINC; CO2;

D O I：

10.1016/j.corsci.2014.10.040

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of temperature on the NaCl-induced atmospheric corrosion of the Mg-Al alloy AM50 has been investigated in the laboratory. The corroded samples were analyzed gravimetrically and by SEM, EDX, XRD, and FTIR. The atmospheric corrosion of 99.97% Mg was also studied for reference. While the NaCl-induced atmospheric corrosion of AM50 is strongly reduced with decreasing temperature, 99.97% Mg does not exhibit such a trend. The temperature dependence of the atmospheric corrosion of alloy AM50 is attributed to the aluminum content in the alloy. Several crystalline magnesium hydroxy carbonates formed at 4 and 22 degrees C but were absent at -4 degrees C. (C) 2014 The Authors. Published by Elsevier Ltd.

引用

页码：420 / 433

页数：14

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