
1) Metallographic Structure
Dense coating, great bonding with matrix, oxide is unseen, WC particles are distributed evenly.
2) Porosity
Porosity is less than 0.5%
3) Bonding Strength
Bonding strength is greater than 70MPa
4) Micro Hardness
Micro harness test press of coating is good, no subside, the hardness is consistent
WC-10Co-4Cr HV0.3 1100-1350
1) Coating Corrosion Resistance
Under standardized salt spray test, no obvious corrosion trace appeared after 240H.
2) Coating Sealing Property
The coating has great sealing property, passes the dye penetrant inspection.
3) Coating High Temperature Resistance
The coating has excellent high temperature resistance, the applying temperature of WC-10Co-4Cr series is ≤540℃
GP10CU-42 is a kind of Tungsten carbide thermal spray powder, with the composition of 86% Tungsten carbide+ 10% Cobalt and 4% Chromium, the particle size is 5-15um. The powder shape is spherical due to the manufacturing process of agglomerated and sintered. It is one of HVOF powder which could be applied with both HVOF/HVAF with excellent oxidation resistance, so it is often used for papermaking rolls, gate valve and ball valves.
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