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Molecular dynamics study on friction of the iron-aluminum alloy
Shanghai Univ, Sch Mechatron Engn & Automat, Shanghai 200444, Peoples R China..
Shanghai Univ, Sch Mechatron Engn & Automat, Shanghai 200444, Peoples R China..
KTH, School of Engineering Sciences (SCI), Engineering Mechanics. Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol Adv Equipment SKLT, Beijing 100084, Peoples R China..ORCID iD: 0000-0002-7547-6535
Shanghai Univ, Sch Mechatron Engn & Automat, Shanghai 200444, Peoples R China..
2022 (English)In: Materials Today Communications, ISSN 2352-4928, Vol. 33, p. 104402-, article id 104402Article in journal (Refereed) Published
Abstract [en]

Iron-aluminum alloy has been widely used in aerospace, nuclear power, electronics and other fields. Taking into account the limitations of the continuum mechanics model at the microscopic scale, it is critical to use nanoscale simulation methods like molecular dynamics (MD) to have a deeper understanding of the friction and wear behavior. Through MD simulation, this thesis mainly studied the friction and wear process of iron aluminum alloy under different conditions. The main conclusions are as follows:(1) The frictional force first experiences a period of growth, and then stabilizes with some fluctuations due to the release of stress-energy caused by deformation.(2) Temperature and friction speed has no significant effect on friction force.(3) The higher the friction speed is, the more wear debris it produces, and the more severely the material is damaged.(4) The force and coefficient of friction will increase with the rise of aluminum content, and the plastic deformation of the alloy is strengthened, while the elastic deformation decreases.(5) The frictional force increases with the wear depth since the accumulation phenomenon of atoms becomes more obvious.

Place, publisher, year, edition, pages
Elsevier BV , 2022. Vol. 33, p. 104402-, article id 104402
Keywords [en]
Molecular dynamics simulation, Wear, Friction, Iron -aluminum alloy
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Identifiers
URN: urn:nbn:se:kth:diva-321317DOI: 10.1016/j.mtcomm.2022.104402ISI: 000874650300003Scopus ID: 2-s2.0-85140042696OAI: oai:DiVA.org:kth-321317DiVA, id: diva2:1710210
Note

QC 20221111

Available from: 2022-11-11 Created: 2022-11-11 Last updated: 2022-11-11Bibliographically approved

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Liu, Zibo

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