Mechanical behaviour and constitutive models of ZDDP tribofilms on DLC coatings using nano-indentation data and finite element modelling

Bartolomé, Luis (avtor), Oblak, Eva (avtor), Kalin, Mitjan (avtor)

The mechanical behaviour of zinc dialkyldithiophosphate (ZDDP) tribofilms on diamond-like carbon (DLC) coatings has been studied by combining the nano-indentation experimental data and finite-element modelling. Different constitutive models, whose analysis was performed using a global algorithm that consists of forward and inverse algorithms, were chosen to establish which of them more accurately predicts the actual mechanical behaviour of the ZDDP tribofilms. A non-homogeneous, dual structure, which was also verified by the local stiffness using the AFM force-modulation mode, was found. Based on the proposed algorithm, the mechanical properties of the ZDDP tribofilms were found, e.g. the elastic modulus E=26 GPa and the yield stress Y=1.55 GPa for the harder component and approximately E=1.65 GPa and Y=0.144 GPa for the softer component.

• Jezik: Angleški jezik
• Ključne besede: DLC coatings, ZDDP, finite-element method, AFM
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Leto izida: 2016
• Št. strani: Str. 19-26
• Številčenje: Vol. 95
• PID: 20.500.12556/RUL-106737
• UDK: 539.92:531.43:621.89(045)
• ISSN pri članku: 0301-679X
• DOI: 10.1016/j.triboint.2015.10.036
• COBISS.SI-ID: 14342939
• Datum objave v RUL: 14.03.2019

Gradivo je del revije

• Naslov: Tribology international
• Skrajšan naslov: Tribol. int.
• Založnik: Butterworth Scientific
• ISSN: 0301-679X
• COBISS.SI-ID: 26558976

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: DLC prevleke, metoda končnih elementov, mazanje, tribologija

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0231
• Naslov: Tribologija