Improving the Properties of Carbon Steel Using Silication by Chemical Vapor Deposition (CVD)
Abstract
The silication is one of the surface treatment technologies that can produce silic containing surface layers with high hardness, good corrosion, and wear resistance on the steel matrix.This study aims to add silica to the carbon steel used locally in the manufacture of some elements of the machines in a manner of CVD (deposition steam chemical) and to increase the hardness and stamina and resistance to shock and friction, also earning silica steel high resistance to corrosion and scratching, and soluble in acids, with the application of Asalkna for (2) hours at temperatures 565,1000,1100,1200 oC, using ammonium chloride and ammonium fluoride in a mixture silication.Found that the proportion of silica formed on the surface of steel and its compounds are the best we can when the heat treatment of the degree of 1100oC and use of fluoride of ammonium in a mixture Asalkna, and also increases hardness outer surface of the steel carbon and high summit of silica compared with the top of the iron in the case of sample treatment and the presence of the amount of very little silica compared with the high percentage of iron ore in the case of the sample; and the increasing rate of protection to the surface of the steel from corrosion at the same previous conditions.
Keywords: CVD - FeSi (chemical vapor deposited Silicon Iron)
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ISSN (Paper)2224-3224 ISSN (Online)2225-0956
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