Hardfacing is a metalworking process where harder or tougher material is applied to a base metal. It is welded to the base material, and generally takes the form of specialized electrodes for arc welding or filler rod for oxyacetylene and TIG welding. Powder metal alloys are used in (PTA) also called Powder plasma welding system and Thermal spray ...
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http://en.wikipedia.org/wiki/Hardfacing
Depositing filler metal on a surfsae by welding, spraying, or braze welding to increase resistance to abrasion, erosion, wear, galling. impact, or cavitation damage.
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http://www.encyclo.co.uk/local/20742
Depositing filler metal on a surfsae by welding, spraying, or braze welding to increase resistance to abrasion, erosion, wear, galling. impact, or cavitation damage
Found on
http://www.encyclo.co.uk/local/21115
The application of a cladding or coating of material designed to resist wear.
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https://www.encyclo.co.uk/local/20828
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