Author
Abstract
In this study an electroplating method has been employed (with zinc, nickle).
Studying of mechanical, surface, metallurgical properties for each coated systems
and made a comparison among them and with shoot penned coated systems. Low
carbon steel alloy has been selected as a substrate. Studying of specified
properties including coating thickness and dry corrosion properties (oxidation at
high temperature) and comparison the results of each treatment with other
treatment results. Coated samples with nickel and zinc by electroplating methods
are used in order to compare among the resulting coating layer properties. Shoot
penning method also has been employed to the two coatings in order to determine
the compression residual stresses role in the variation of studied properties.
Results showed that nickel coating layer has higher oxidation resistance than zinc
coating layer at high temperature, but has lower roughness, micro hardness, wear
resistance and density. Microstructure inspection results showed ferrite- pearlite
phases in the treated samples for all coated systems, This ensures that this
treatment will not subject to any phases transformation, and formation of coating
layer with a different thickness as illustrated by micro structure images.
Keywords
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