TY - JOUR
T1 - Role of interfacial adhesion on minimum wear particle size and roughness evolution
AU - Milanese, Enrico
AU - Brink, Tobias
AU - Aghababaei, Ramin
AU - Molinari, Jean François
PY - 2020/10
Y1 - 2020/10
N2 - Adhesion between two bodies is a key parameter in wear processes. At the macroscale, strong adhesive bonds are known to lead to high wear rates, as observed in clean metal-on-metal contact. Reducing the strength of the interfacial adhesion is then desirable, and techniques such as lubrication and surface passivation are employed to this end. Still, little is known about the influence of adhesion on the microscopic processes of wear. In particular, the effects of interfacial adhesion on the wear particle size and on the surface roughness evolution are not clear and are therefore addressed here by means of molecular dynamics simulations. We show that, at short timescales, the surface morphology and not the interfacial adhesion strength dictates the minimum size of wear particles. However, at longer timescales, adhesion alters the particle motion and thus the wear rate and the surface morphology.
AB - Adhesion between two bodies is a key parameter in wear processes. At the macroscale, strong adhesive bonds are known to lead to high wear rates, as observed in clean metal-on-metal contact. Reducing the strength of the interfacial adhesion is then desirable, and techniques such as lubrication and surface passivation are employed to this end. Still, little is known about the influence of adhesion on the microscopic processes of wear. In particular, the effects of interfacial adhesion on the wear particle size and on the surface roughness evolution are not clear and are therefore addressed here by means of molecular dynamics simulations. We show that, at short timescales, the surface morphology and not the interfacial adhesion strength dictates the minimum size of wear particles. However, at longer timescales, adhesion alters the particle motion and thus the wear rate and the surface morphology.
UR - http://www.scopus.com/inward/record.url?scp=85093356501&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.102.043001
DO - 10.1103/PhysRevE.102.043001
M3 - Journal article
C2 - 33212720
AN - SCOPUS:85093356501
SN - 2470-0045
VL - 102
JO - Physical Review E
JF - Physical Review E
IS - 4
M1 - 043001
ER -