- 期刊
The Effect of Surface Pre-Treatment and Coating Post-Treatment to the Properties of TiN Coatings
並列摘要
Nowadays physical vapour deposited (PVD) coatings are widely used in a variety of different applications to reduce the wear of tools. Thin hard coatings have good wear resistance only when they have good adhesion and certain surface roughness. Thus, dry micro-abrasive blasting method with SiC abrasive was implemented as a pre-treatment process on WC-Co substrates. Post-treatment was conducted by using drag grinding method. The effect of surface preand post-treatment on the adhesion and tribological properties of TiN hard coatings have been investigated. TiN hard coatings were deposited by means of lateral rotating cathode arc method with the thickness of 2.3 μm. The surface roughness was measured by means of Mahr Perthometer and the standard Rockwell adhesion test was implemented to evaluate the adhesion of PVD TiN coatings. Tribological properties were determined by ball-on-disk method. The experimental part was focused on the effect of microblasting on the tribological properties of the coating. The relation between post-treatment of the coating and friction coefficient is indicated.
延伸閱讀
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