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Generic Coatings > Thermal Spray Coatings > Spray & Fused Alloy Coatings Spray & Fused Alloy CoatingsNickel Based Coatings are specified by many of our customers because they are reliable, relatively inexpensive and they perform very well in service. These coatings are special alloys of nickel, chromium, silicon, boron, and carbon in varying amounts depending on the blend. Their major attribute, in addition to their excellent resistance to galling and abrasive wear, is that their melting point is only about two thousand degrees Fahrenheit. This means that they can be sprayed onto a metallic component and then subsequently fused, or melted, without melting the base metal. This fusing process densifies the coating and enables it to form a metallurgical bond with the base alloy. This provides these coatings with excellent adhesion with no porosity. Thickness limits range up to .090", and their properties of corrosion resistance and impact resistance are very good. Cobalt Based Coatings offer improved corrosion resistance over nickel based coatings, however the price of cobalt based coatings is significantly higher than the price of their nickel-base counterparts. Cobalt based coatings are applied and fused in the same manner as nickel based coatings and offer the same thickness ranges. Impact resistance and abrasion resistance are greater than nickel based coatings. Tungsten Carbide Particles can be added to either of the above coatings in order to increase the abrasive wear resistance, in effect, alloying the original material with tungsten carbide. We apply many of these modified coatings. Items coated with these modified materials are generally more expensive, in large part because of the greater difficulty required to machine and finish grind them. For help selecting the right coating for your situation, contact ICS TECHNOLOGIES. |
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ICS TECHNOLOGIES • P: 519.337.3300 • F: 519.337.6610 • sales@icstechnologies.com |
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