Cold spray is a solid-state coating deposition method in which powdered metals are accelerated through a nozzle to velocities sufficient to cause plastic deformation and bonding. In this way, layers of new metal can be added to worn surfaces, which can refurbish components subject to corrosion, wear, or impact damage and build up dimensions lost to other degradation processes. Cold spray is a particularly useful method for repairing components that don’t respond well to processes that produce high heat.
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