Understanding the role of alloyed Cu and P in the initial rust composition of weathering steel formed in a simulated coastal-industrial atmosphere

The effects of RE on the inclusions and the mechanical properties of 10PCuRE steel were studied. The results show that the morphologies and sizes of inclusions in 10PCuRE steel are changed, and RE played a very good role of modifying inclusions. Fracture is changed from cleavage to ductile fracture by adding RE to 10PCuRE steel. And the mechanical properties of 10PCuRE are improved. In comparison with 10PCuRE steel without RE, the transverse impact toughness of 10PCuRE steel with RE is increased 30.15% at -20°C, and the tensile strength and reduction of area have been improved 27.14%, 8.9%, respectively.

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Accelerated corrosion behavior of weathering steel Q345qDNH for bridge in industrial atmosphere

Construction and Building Materials ◽

10.1016/j.conbuildmat.2021.124864 ◽

2021 ◽

Vol 306 ◽

pp. 124864

Author(s):

Jun-dong Fu ◽

Shui Wan ◽

Ying Yang ◽

Qiang Su ◽

Wen-wen Han ◽

...

Keyword(s):

Corrosion Behavior ◽

Weathering Steel ◽

Accelerated Corrosion ◽

Industrial Atmosphere

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The Role of Mo Addition in the Improvement of Corrosion Resistance of Weathering Steel Under a Wet-Dry Cyclic Condition

ECS Meeting Abstracts ◽

10.1149/ma2020-02131325mtgabs ◽

2020 ◽

Vol MA2020-02 (13) ◽

pp. 1325-1325

Author(s):

Yu Sugawara ◽

Yu Okamura ◽

Masatsugu Murase

Keyword(s):

Corrosion Resistance ◽

Weathering Steel ◽

Cyclic Condition

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Influence of a CuS04 Treatment on Atmospheric Steel Rust Formation a Mössbauer Spectroscopy Study

CORROSION ◽

10.5006/1.3593866 ◽

1982 ◽

Vol 38 (4) ◽

pp. 206-211 ◽

Cited By ~ 11

Author(s):

C. Saragovi-Badler ◽

I. A. Maier ◽

F. Labenski

Keyword(s):

Copper Deposit ◽

Steel Plates ◽

Weathering Steel ◽

Spectroscopy Study ◽

Spectroscopy Analysis ◽

Amorphous Substance ◽

Significant Difference ◽

Amorphous Compound ◽

Industrial Atmosphere

Abstract Mössbauer spectroscopy has been used to analyze the rust layers formed on a weathering steel and a 1010 steel exposed for 10-1/2 months to an urban-industrial atmosphere. No significant difference was found comparing the rusts of both steels: they were composed by γ-FeOOH, superparamagnetic α-FeOOH, and an amorphous or gel-like compound. γ-FeOOH is more abundant in the internal rust layers, whereas the amount of α-FeOOH and the amorphous compound increase in the external rusts. Part of the samples received an initial copper deposit by immersion of the steel plates in a CuSO4 bath. Mössbauer spectroscopy analysis showed that the amorphous substance was no longer present in the rusts of those specimens; that is, the rusts of both steels were formed only by γ-FeOOH and α-FeOOH.

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