Plasma-arc spray-coating of powders of self-fluxing iron-base alloys. II. Structure and properties of the coatings

1996 ◽  
Vol 34 (3-4) ◽  
pp. 146-150
Author(s):  
A. A. Nechiporenko ◽  
E. P. Martsevoi
1995 ◽  
Vol 11 (01) ◽  
pp. 53-55
Author(s):  
Frank S. Rogers

Thermal spraying of steel with aluminum to protect it from corrosion is a technology that has been proven to work in the marine environment. The thermal spray coating system includes a paint sealer that is applied over the thermally sprayed aluminum; this extends the service life of the coating, and provides color to the end product. The thermal spray system protects steel both through the principle of isolation (as in painting) and galvanization (as in galvanizing). With this dual protection mechanism, steel is protected from corrosion even when the coating is damaged. The thermal sprayed aluminum coating system has proven to be the most cost-effective corrosion protection system for the marine environment. Until recently, however, the initial cost of application has limited its use for general application. Today a new arc spray technology has reduced the application cost of thermal spraying aluminum to below that of painting. Commercial shipbuilders could use this technology to enhance their market position in the marine industry.


2019 ◽  
Vol 785 ◽  
pp. 846-854 ◽  
Author(s):  
Jian Zhao ◽  
Qingwei Gao ◽  
Houqin Wang ◽  
Fengyuan Shu ◽  
Hongyun Zhao ◽  
...  

2015 ◽  
Vol 76 (10) ◽  
Author(s):  
Muhamad Hafiz Abd Malek ◽  
Nor Hayati Saad ◽  
Sunhaji Kiyai Abas ◽  
Noriyati Mohd Shah

Thermal arc spray coating was regard as most preferred method as a protective coating due to its ability to sustain in high temperature, high friction surface, and low cost process. It has been applied by most of industrialist especially in oil and gas field, where current application of the coating used in onshore. This research is a study on mechanical properties of thermal arc spray coating by using aluminium alloy with purity 99.5% as coating material. Two samples with different coating thickness at range of 200 μm – 300 μm and 300 μm – 400 μm were used for this research. Some of tests were prepared to evaluate coating mechanical properties. Surface microstructures were viewed and analysed using scanning electron microscope and energy dispersive x-ray analysis.  The hardness was inspected using Vickers Hardness testing. Corrosion rate was established by performing Salt Spray Test. Porosity value was calculated using Image Analyzer. Surface roughness was viewed using Infinitefocus G4 machine. Experimental results were found that coating porosity was raising with enhancing of coating thickness. The increment coating thickness also resulted in reduction of hardness and surface roughness. For corrosion rate purpose, two samples with coating thickness at range of 200 μm – 300 μm and two samples with coating thickness at range 300 μm – 400 μm were prepared. It recorded at Rating 5 – Rating 7 after exposed in salt spray cabinet within 144 hours. As a result, coating thickness at range of 200 μm – 300 μm performs the most efficiency in terms of mechanical properties; less corrosion rate, less porosity and contribute to high hardness and surface roughness.  


Vacuum ◽  
2000 ◽  
Vol 59 (1) ◽  
pp. 179-184 ◽  
Author(s):  
H.C. Dickey ◽  
T.T. Meek

1990 ◽  
Vol 29 (3) ◽  
pp. 216-218
Author(s):  
I. N. Gorbatov ◽  
A. G. Zherdin ◽  
Yu. K. Pokrovskii ◽  
O. D. Timoshenko ◽  
S. Yu. Koshkina ◽  
...  

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