Tribological behavior and wear mechanisms of TiN/TiCN/TiN multilayer coatings
- National Cheng Kung Univ., Tainan (Taiwan, Province of China). Dept. of Mechanical Engineering
This work employs the PVD process to deposit coatings of single layer TiN, binary layer TiN/TiCN, multilayer TiN/Ti/TiN, and sequenced TiN/TiCN/TiN multilayer coatings with variable individual TiN-layer and TiCN-layer thicknesses on tungsten carbide disks and inserts. Also investigated are the fracture mechanisms and the influence of sequence and thickness of these coatings on cylinder-on-disk, line-contact wear mode and ball-on-disk, point-contact wear mode through SRV reciprocating wear tests. Actual milling tests identify wear performance. Experimental results indicate that the coating with a total thickness of 7 {micro}m and layer sequence TiN/TiCN/TiN exhibits good wear resistance on SRV wear test and milling test. The thickest multilayer TiN/Ti/TiN coating, although having the highest hardness, has the worst wear resistance for all tests. Notably zero-wear performance was observed for all coating disks under cutting fluid lubricated condition due to the transferred layers formed between the contact interface.
- OSTI ID:
- 669810
- Journal Information:
- Journal of Materials Engineering and Performance, Vol. 7, Issue 5; Other Information: PBD: Oct 1998
- Country of Publication:
- United States
- Language:
- English
Similar Records
Use of a TiBN Multilayer Coating for Wear Reduction
Fatigue strength of TiN and TiCN ceramic coated 1Cr-1Mo-0.25V steel