PT-MAT™ has a long experience designing coatings for the toughest wear applications.  Our latest development for PTA cladding combines diamond particles along with tungsten carbide in a nickel based matrix alloy. This allows us to offer coatings that can handle the toughest abrasion conditions.

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The diamonds and spherical fused tungsten carbide (SFTC) are spread throughout the overlay to form a coating with extreme wear resistance.  The coating is welded to the base metal.  PT-MAT has developed several matrices that allow for high particles concentration, easy weld-ability and limited carbide dissolution.

 

 

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The diamonds are encapsulated in a shell that protects them during the welding process and anchor them in the coating..
This results in diamonds between 150µm and 250µm s embedded alongside tungsten carbide particles.

Hardness SFTC : 2750-3100 HV0.1
Hardness Diamond > 5,000 HV0.1

 

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Different concentration of diamonds and tungsten carbide are possible to optimize the wear properties.