Effect of adhesion on material removal during adhesive wear

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Effect of adhesion on material removal during adhesive wear. / Aghababaei, Ramin.

I: Physical Review Materials, Bind 3, Nr. 6, 063604, 06.2019.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

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Aghababaei, Ramin. / Effect of adhesion on material removal during adhesive wear. I: Physical Review Materials. 2019 ; Bind 3, Nr. 6.

Bibtex

@article{01350d587ee546e688956dd86e1b6aab,
title = "Effect of adhesion on material removal during adhesive wear",
abstract = "The process of surface degradation and material removal due to adhesive force between rubbing surfaces (i.e., adhesive wear) involves an apparent contradiction. The material exchange between sliding surfaces requires a strong adhesion between surface asperities, whereas the detachment of final wear particles demands a weak adhesion between worn fragments and sliding surfaces. Here, using a coarse-grained numerical technique, we study the complete process of wear particle formation (i.e., nucleation, evolution, and detachment) during adhesive sliding contact. We show that discrepant experimental and theoretical wear observations can be attributed to different stages of the wear particle formation. In particular, we address the opposite contribution of adhesion into the formation and detachment processes of wear particles. Our simulations reveal that reducing adhesion diminishes the adhesive wear in three ways: (i) reducing the probability of wear particle formation, (ii) increasing the required energy per unit volume of removed materials (i.e., decreasing the energy efficiency for particle formation), and (iii) alleviating the growth of formed wear fragments.",
keywords = "CONTACT, CRITERION, DEBRIS, DELAMINATION THEORY, FRICTION, MECHANICS, ORIGINS, PARTICLE FORMATION, SUBSURFACE CRACK-PROPAGATION, SURFACE-ROUGHNESS",
author = "Ramin Aghababaei",
year = "2019",
month = jun,
doi = "10.1103/PhysRevMaterials.3.063604",
language = "English",
volume = "3",
journal = "Physical Review Materials",
issn = "2476-0455",
publisher = "American Physical Society",
number = "6",

}

RIS

TY - JOUR

T1 - Effect of adhesion on material removal during adhesive wear

AU - Aghababaei, Ramin

PY - 2019/6

Y1 - 2019/6

N2 - The process of surface degradation and material removal due to adhesive force between rubbing surfaces (i.e., adhesive wear) involves an apparent contradiction. The material exchange between sliding surfaces requires a strong adhesion between surface asperities, whereas the detachment of final wear particles demands a weak adhesion between worn fragments and sliding surfaces. Here, using a coarse-grained numerical technique, we study the complete process of wear particle formation (i.e., nucleation, evolution, and detachment) during adhesive sliding contact. We show that discrepant experimental and theoretical wear observations can be attributed to different stages of the wear particle formation. In particular, we address the opposite contribution of adhesion into the formation and detachment processes of wear particles. Our simulations reveal that reducing adhesion diminishes the adhesive wear in three ways: (i) reducing the probability of wear particle formation, (ii) increasing the required energy per unit volume of removed materials (i.e., decreasing the energy efficiency for particle formation), and (iii) alleviating the growth of formed wear fragments.

AB - The process of surface degradation and material removal due to adhesive force between rubbing surfaces (i.e., adhesive wear) involves an apparent contradiction. The material exchange between sliding surfaces requires a strong adhesion between surface asperities, whereas the detachment of final wear particles demands a weak adhesion between worn fragments and sliding surfaces. Here, using a coarse-grained numerical technique, we study the complete process of wear particle formation (i.e., nucleation, evolution, and detachment) during adhesive sliding contact. We show that discrepant experimental and theoretical wear observations can be attributed to different stages of the wear particle formation. In particular, we address the opposite contribution of adhesion into the formation and detachment processes of wear particles. Our simulations reveal that reducing adhesion diminishes the adhesive wear in three ways: (i) reducing the probability of wear particle formation, (ii) increasing the required energy per unit volume of removed materials (i.e., decreasing the energy efficiency for particle formation), and (iii) alleviating the growth of formed wear fragments.

KW - CONTACT

KW - CRITERION

KW - DEBRIS

KW - DELAMINATION THEORY

KW - FRICTION

KW - MECHANICS

KW - ORIGINS

KW - PARTICLE FORMATION

KW - SUBSURFACE CRACK-PROPAGATION

KW - SURFACE-ROUGHNESS

UR - http://www.scopus.com/inward/record.url?scp=85067356470&partnerID=8YFLogxK

U2 - 10.1103/PhysRevMaterials.3.063604

DO - 10.1103/PhysRevMaterials.3.063604

M3 - Journal article

AN - SCOPUS:85067356470

VL - 3

JO - Physical Review Materials

JF - Physical Review Materials

SN - 2476-0455

IS - 6

M1 - 063604

ER -