Molecular dynamics simulation and experimental study on Si3N4-GCr15 of thin film lubrication

3rd China-Romania Science and Technology Seminar

自然科学;工业技术

Lixiu, Z.^1,2 ; Bing, L.^2 ; Junhai, W.^1,2 ; Tian, T.^2 ; Qinghua, S.^3

Testing and Analysis Center, Shenyang Jianzhu University, Shenyang, China^1

Mechanical College, Shenyang Jianzhu University, Shenyang, China^2

Party and Government Office, Shenyang Jianzhu University, Shenyang, China^3

关键词: Experimental investigations;    Friction and wear;    Geometry optimization;    Lubrication property;    Molecular dynamics methods;    Molecular dynamics simulations;    Thin film lubrication;    Van der Waals energies;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/399/1/012035/pdf
DOI  :  10.1088/1757-899X/399/1/012035

来源: IOP

【 摘 要 】

The molecular dynamics analysis and experimental investigation of thin film lubrication of silicon nitride (Si3N4) and bearing steel(GCr15) under the n-hexadecane-based lubricant were studied. A molecular dynamics method was used to establish a molecular model with Materials Studio7.0 software. Forcite module for Geometry Optimization, Dynamics and Confined Shear in three steps. The effects of pressure and velocity on lubrication properties such as van der Waals energy and shear stress of film lubrication were explored. The Rtec friction and wear tester was used to test the Si3N4-GCr15 friction pair with the change of speed and load.