Corrosion Study on Low Alloy High Phosphorus Steel

被引：0
|
作者：
Jena, Basanta Kumar [1 ]
Gupta, Nandita [2 ]
Singh, Balbir [3 ]
Sahoo, Gadadhar [3 ]
机构：
[1] Dr BR Ambedkar Inst Technol, Port Blair, A&N Island, India
[2] Natl Inst Foundry & Forge Technol, Ranchi 834003, Bihar, India
[3] SAIL, R&D Ctr Iron & Steel, Ranchi 834002, Bihar, India
来源：
JOURNAL OF METALS MATERIALS AND MINERALS | 2014年 / 24卷 / 01期
关键词：
Weathering steel; High phosphorus steel; Tafel polarization; Electrochemical impedance spectroscopy; Cyclic salt spray test;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of P on corrosion behaviour of low alloy steels exposed for one month cyclic wet/dry salt spray was investigated and compared with low carbon steel. Electrochemical Impedance Spectroscopy (EIS) results revealed that the rust resistance (R-rust) increased with the number of salt spray test cycles. The higher phosphorus content steel (G12) exhibited higher rust resistance (R-rust) than that of low phosphorus content steels (SCR & G11), while similar corrosion rate was noticed from the Tafel extrapolation study in 3.5% NaCl solution for all the test samples. All steels revealed ferrite pearlite microstructure. The larger ferrite grain of G12 steel containing highest phosphorus content (0.42 wt.% P) is attributed to the effect of phosphorus.
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页码：1 / 6
页数：6
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