Effect of hot dip galvanized coating on the corrosion resistance of the external surface of reinforcement steel

The microstructure of the galvanized coating was investigated using scanning electron microscope equipped with energy dispersive X-ray spectroscope. The immersing and electrochemical corrosion tests were carried out to study the corrosion resistance of the galvanized coating. The addition of Bi in Zn-bath affects remarkably the morphology of the galvanized coating. The thickness of δ + ζ phase layer in the coating reaches the maximum when the content of Bi in Zn-bath is 0.5 wt.%. The corrosion resistance of the galvanized coating declines with the increase of the content of Bi.

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The study of corrosion resistance of reinforcement steel embedded in concrete composed of commercial Portland cement and final tin slag against chloride environment

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/431/5/052006 ◽

2018 ◽

Vol 431 ◽

pp. 052006 ◽

Cited By ~ 1

Author(s):

R Riastuti ◽

A Cahyadi ◽

Y Pratesa ◽

S T Siallagan

Keyword(s):

Corrosion Resistance ◽

Portland Cement ◽

Reinforcement Steel ◽

Tin Slag ◽

Chloride Environment

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A Study on Corrosion Resistance and Weatherability of Fluorocarbon Anti-Corrosion Coatings for External Surface of Ocean Platform

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.159.29 ◽

2012 ◽

Vol 159 ◽

pp. 29-34

Author(s):

Bei Bei Xie ◽

Wen Li Han ◽

Yan Jun Zhang ◽

Zhong Ping Xu ◽

Yao Hui Yang ◽

...

Keyword(s):

Corrosion Resistance ◽

External Surface ◽

Uv Light ◽

Polyurethane Coatings ◽

Light Stability ◽

Silicone Coatings ◽

Acrylic Polyurethane ◽

Rubber Coatings ◽

Salt Fog ◽

Comparison Data

In order to ravel out the problem of serious corrosion and difficult repeated construction on the sea, the fluorocarbon coatings for external surface of ocean platform has been researched. The UV light stability, salt fog resistance, acid and alkali corrosion resistance of fluorocarbon coatings are investigated. The comparison data between fluorocarbon coating and chlorinated rubber coatings, acrylic polyurethane coatings and silicone coatings are given.

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The Impact of Zinc Coating Specifications on Corrosion Resistance аnd Durability of Steels

Materials Science Forum ◽

10.4028/www.scientific.net/msf.945.740 ◽

2019 ◽

Vol 945 ◽

pp. 740-745

Author(s):

I.A. Kovalenko ◽

D.V. Laskin ◽

A.Y. Trifonova

Keyword(s):

Corrosion Resistance ◽

Statistical Analysis ◽

Chemical Composition ◽

Service Life ◽

Zinc Coating ◽

Useful Life ◽

Galvanized Coating ◽

Zinc Coatings ◽

The Impact ◽

High Chloride

The article contains the findings on impact of zinc coating specifications on corrosion resistance and service life of steels of various chemical composition used often in modern industries. Characteristics such as type, class, chemical compound and thickness of zinc-based coatings are also addressed. Experiments were performed in which corrosion rate and useful life of zinc coatings in probable operating-like conditions — i.e., in environments of varying degrees of corrosive power (humid and high-chloride environments) were determined. It has been established which one of the environments is the most corrosive for steels depending on the zinc-based coatings’ specifications. Qualitative (visual) and quantitative (gravimetric) assessment of corrosion resistance and service life of chosen steels is presented. Optimal hot dip galvanized coating specifications were determined using statistical analysis.

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