Atmospheric Corrosion of Steel A3 Deposited with Ammonium Sulfate and in the Presence of Sulfur Dioxide

材料科学技术（英文）, 2003, 19(5): 453-455.

^1, , ^2, , ^3, , ^4,

1.State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, China2 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 11001

2.State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, China2 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 11001

3.State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, China2 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 11001

4.Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China

基金项目: the National Natural ScienceFoundation of China under(59899144)

Atmospheric Corrosion of Steel A3 Deposited with Ammonium Sulfate and in the Presence of Sulfur Dioxide

Keywords： Steel A3

A laboratory study of the atmospheric corrosion of carbon steel deposited with (NH4)2SO4 in the presence of SO2 isreported. The different levels of (NH4)2SO4 (0, 15, 30, 45, 60μg.cm-2) were added on the surface of the samplesbefore the exposure. The corrosion was investigated by a combination of gravimetry, Fourier transform infraredspectroscope and scanning electron microscopy. A detailed knowledge about the corrosion products was acquired,both quantitatively and qualitatively. The results show that the metal loss increased and the increasing tendency ofcorrosion rates slowed down with the increasing exposure time. The phase constituents of the corrosion products aremainly c-FeO(OH), γ-FeO(OH), and δ-FeO(OH).

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Atmospheric Corrosion of Steel A3 Deposited with Ammonium Sulfate and in the Presence of Sulfur Dioxide

参考文献