Tribological behavior and wear mechanisms of TiN/TiCN/TiN multilayer coatings

Journal Article · Thu Oct 01 04:00:00 EDT 1998 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1361/105994998770347440· OSTI ID:669810

Su, Y L; Kao, W H ^[1]

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1. 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, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 5 Vol. 7; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARBONITRIDES
COATINGS
COMPOSITE MATERIALS
LAYERS
LUBRICATION
PHYSICAL VAPOR DEPOSITION
TITANIUM COMPOUNDS
TITANIUM NITRIDES
WEAR