Tribological Properties of a Mesh-Like Nanostructured Diamond-Like Carbon (DLC) Lubricated with a Fully Formulated Oil at DLC/Steel Contacts under Boundary Lubrication
نویسندگان
چکیده
The present paper describes the tribological properties of a mesh-like nanostructure diamond-like carbon (DLC) in formulated engine oil at DLC/steel contacts. This novel nanostructured DLC was characterized as non-hydrogenated amorphous (a-C) with nano-mesh structure layer outermost surface, herein named NM-a-C. From results our friction tests, we observed that NM-a-C/steel tribopair exhibited lower and higher wear-resistance than a-C:H/steel tribopair, though mechanical were nearly identical. analytical result indicated tribofilm formation process chemical composition varied depending on types DLC. In particular, thicker MoS2-rich tribofilms formed NM-a-C surface. Hence, promoted MoS2 under lubrication fully oil, leading to high contact boundary conditions.
منابع مشابه
Biomedical applications of diamond-like carbon (DLC) coatings: A review
To resist wear, biomedical components require coatings that are exceptionally hard, have low friction, and are bioinert. Diamond-like carbon has been shown to provide this capability and to prevent leaching of metallic ions into the body. There are many ways to deposit such coatings from carbonaceous precursors, and some offer the means to incorporate other elements such as nitrogen, titanium, ...
متن کاملDiamond, Diamond-Like Carbon (DLC) and Diamond-Like Nanocomposite (DLN) Thin Films for MEMS Applications
متن کامل
Tribological behaviour of different diamond-like carbon materials
This paper comparatively studies the tribological behaviour of different types of diamond-like carbon (DLC) coatings in a reciprocating sliding wear test. The results are interpreted in terms of structure and surface morphological characteristics. At the beginning of each reciprocating sliding wear test, the higher coefficient of friction of the DLC coatings reflects the original surface condit...
متن کاملThe tribological properties of low-friction hydrogenated diamond-like carbon measured in ultrahigh vacuum
In this paper, we investigate the sliding friction and wear behavior of a hydrogenated diamond-like carbon (DLC) film in ultrahigh vacuum (UHV) and under partial pressures of water vapor, oxygen, nitrogen and hydrogen. The initial friction coefficient of the film in UHV was 0.15, but decreased steadily to values as low as 0.03 after about 30 sliding passes. During longer duration tests, the fri...
متن کاملTribological properties of hydrogenated and hydrogen-free diamond-like carbon coatings
The amorphous hydrogenated carbon coatings (a-C:H) deposited by plasmaassisted chemical vapour deposition (PACVD), and tetrahedral amorphous carbon coatings (ta-C) deposited by pulsed vacuum arc discharge were evaluated by scratch adhesion testing, load-carrying capacity testing and tribological testing in unlubricated and lubricated sliding conditions. The wear surfaces of the coatings and cou...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Coatings
سال: 2021
ISSN: ['2079-6412']
DOI: https://doi.org/10.3390/coatings11070746