Abstract
This experiment was on the basis of the argon-arc clad injection technology, Ni60 self-fluxed alloy powder was coated on the surface of Q235 steel plate, then TiC, TiN, MoC and Co powder were sprayed by the modificated injection device, and at the same time the powder was vibrated by the ultrasonic-assisted vibration device self-designed. So the sprayed powder particles were smaller, shape was more regular, and distribution more uniform. The results show that the microhardness of composite coating was more than 5 times than that of the matrix, and the wear volume was about 1/5 than the matrix. The good combination, high strength and high wear resistance composite coating was obtained.
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