Research on Cavitation and Silt Erosion Resistance of HVAF Coatings

Juan Liu; Luo Ping Pan; Jiang Cheng Yu

doi:10.4028/www.scientific.net/MSF.686.618

Paper Titles

Microstructure Features of Cold-Sprayed NiCoCrAlTaY Coating and its High Temperature Oxidation Behavior
p.595

Nitrite, Nickel-Free Electrophoretic Coating Phosphating Solution
p.603

Properties of Oxide Film on the Surface of ZrH_X(x=0~2)
p.609

Properties of Sputtered NiCrAlY Used for Protective Gun Tube Coatings
p.613

Research on Cavitation and Silt Erosion Resistance of HVAF Coatings
p.618

Research on Properties of SiC Coating Inert Anode for Aluminum Electrolysis
p.623

Si-B Co-Deposition Coatings on an Nb Silicide Based Ultrahigh Temperature Alloy Prepared by Pack Cementation Technique
p.630

Improving the Bonding Strength of Y₂O₃ Coatings on Steel Substrates through a YO_X Adhesion Layer
p.637

Study of Y₂O₃/Er₂O₃ Multilayered Coatings Deposited by Magnetron Sputtering
p.641

HomeMaterials Science ForumMaterials Science Forum Vol. 686Research on Cavitation and Silt Erosion Resistance...

Research on Cavitation and Silt Erosion Resistance of HVAF Coatings

Abstract:

Two kinds of harding coatings: WC-12Co and CrC-25NiCr were made by active combustion-high velocity air flue (AC-HVAF). By the rotating disc test rig, the systematical experiments were carried to study the wear resistance and mechanisms of coatings on different test conditions: pure water cavitation and sandy water silt erosion. On the sandy water silt erosion test condition, the wear resistance of HVAF coatings is better than that of metal matrix. However, it is reverse on the other test condition. Basing on the scanning electron microscope (SEM) analysis, the surface morphology of coating surface after wear was studied. And the influence of adhesion strength, micro-hardness and porosity ratio of HVAF coating on wear resistance was researched in detail.