The wettability characteristics of DLC coating for tribological engineering applications
Hard coating deposited to tool steel surface can greatly improve wear resistance and reduce sticking. Since solid-liquid interactions are present in every lubricated tribological contact, the present study is aimed to understand the physical phenomena of contact interactions between the DLC coate...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Proceeding Paper |
| Language: | en en en |
| Published: |
IOP
2019
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/85653/1/Sulaiman_2019_IOP_Conf._Ser.-_Mater._Sci._Eng._670_012053.pdf http://irep.iium.edu.my/85653/7/85653_The%20wettability%20characteristics%20of%20DLC%20coating_Scopus.pdf http://irep.iium.edu.my/85653/8/85653_Front%20matters.pdf http://irep.iium.edu.my/85653/ https://doi.org/10.1088/1757-899X/670/1/012053 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Hard coating deposited to tool steel surface can greatly improve wear resistance and
reduce sticking. Since solid-liquid interactions are present in every lubricated tribological
contact, the present study is aimed to understand the physical phenomena of contact interactions
between the DLC coated surface and the liquid. In this study, double-layer DLC/TiAlN coating
was prepared via Physical Vapour Deposition (PVD) process. The anti-sticking properties were
assessed using contact angle measurements using two liquids with distinctly different viscosity
– water and oil. No significant differences found in the contact angle values for both liquid
properties. The results revealed that the DLC/TiAlN coated tool steel surfaces exhibit
hydrophobic behaviour with high contact angle values. With a lower surface energy of the
DLC/TiAlN coating in comparison to uncoated surface, this suggests that the DLC/TiAlN
coating is a good hard coating candidate since it has a lower adhesion resistance and an improved
release performance. |
|---|