Corrosion resistance of explosion cladding plate of carbon steel and 316L stainless steel

被引：8
|
作者：
de Paula, R. G. [2 ]
Araujo, C. R. [2 ]
Lins, V. de F. C. [1 ]
Carneiro, J. R. G. [2 ]
机构：
[1] Univ Fed Minas Gerais, BR-31270010 Belo Horizonte, MG, Brazil
[2] Pontificia Univ Catolica Minas Gerais, Belo Horizonte, MG, Brazil
来源：
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY | 2012年 / 47卷 / 02期
关键词：
Explosion cladding; ASME TP-316L steel; Electrochemical impedance spectroscopy; Anodic potentiodynamic polarisation; SURFACE-ROUGHNESS; ALLOY; METAL;
D O I：
10.1179/1743278211Y.0000000028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The ASME AS-240TP-316L stainless steel in the form of a sheet 3 mm in thickness and the ASTM SA-516 grade 60N steel substrate are joined by explosion cladding. The objective of this paper is to evaluate the electrochemical behaviour of a cladding plate of carbon-manganese steel and stainless steel 316L when compared to non-cladding plate 316L steel. The effect of the cladding process on the corrosion resistance was evaluated in a medium of aqueous solution of sulphuric acid. Anodic potentiodynamic polarisation curves were obtained to study the passivation behaviour of the cladding plate. Electrochemical impedance spectroscopy was performed to elucidate the corrosion mechanism of the cladding plate. The non-cladding ASME AS-240 TP-316L steel showed a higher corrosion potential, a lower passivation current density and a higher polarisation resistance, exhibiting a higher corrosion resistance than cladding 316L steel.
引用
收藏
页码：116 / 120
页数：5
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