Coating Compositions, Applications Thereof, and Methods of Forming
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United States of America Patent
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Issued Date -
Aug 22, 2013
app pub date -
Feb 22, 2012
filing date -
Feb 22, 2012
priority date (Note) -
Abandoned
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Abstract
Equipment (work piece) for use in corrosive resistant coating on equipment is disclosed. The equipment has at least a portion of its surface coated with a layer formed from a NiCrMo alloy composition containing at least two gettering components selected from Al, Si, and Ti in an amount of up to 25 wt. %. The coating in one embodiment is applied on the equipment using a thermal spray technique, e.g., twin wire arc spray, forming coatings of 5-50 mils thickness having a fine-scale micro-pore structure. The coating layer is characterized as having excellent adhesion strength and corrosion resistant properties, even when applied with varying parameters as in manual on-site coating applications. In one embodiment, the coating layer has an impurity content of less than 15%.
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