The study of properties of Ni-W2C and Co-W2C powders thermal sprayed deposits

Samples of a carbon steel base metal were thermal sprayed by self fluxing cobalt and nickel base alloys (PE 8961 and PE 1229 powders blended with 50 or 60% of tungsten carbides W2C). Six samples of every one PE 8961 and PE 1229 powders thermal sprayed deposits (further called PE 8961 deposit and PE 1229 deposit) with dimensions were provided for following tests: ASTM G65 procedure abrasive wear resistance test, hardness tests and metallographic examinations. It was shown that the abrasive wear resistance of PE 1229 deposit is 2.5 times higher than PE 8961 deposit and 27.9 times higher than reference 400HB steel and 33.8 times higher than reference AISI 316L steel.