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Adhesion between ferrite iron-€“iron/cementite countersurfaces: A molecular dynamics study
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics.ORCID iD: 0000-0003-0205-0178
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics.ORCID iD: 0000-0001-6029-2613
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics.
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics. (Materials Engineering, Materials Science)ORCID iD: 0000-0002-9441-2502
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2016 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 103, 113-120 p.Article in journal (Refereed) Published
Abstract [en]

The adhesive properties of Fe(110)/Fe(110) and Fe3C(001)/Fe(110) countersurfaces have been investigated by using classical molecular dynamics simulations. The simulation results show that Fe3C/Fe exhibits a relatively lower adhesion compared to the Fe/Fe. Additionally, the temperature dependence of the adhesive properties between 300–700 K has been examined. The results demonstrate that, with increasing the temperature, the values of the adhesion force and the work of adhesion continuously decrease in the case of Fe3C/Fe; they initially slightly increase up to 500 K then decrease in the case of Fe/Fe. Furthermore, the effect of lattice coherency between Fe/Fe has been examined and found to slightly reduce the adhesion. These results explain how carbides improve galling resistance of tool steel observed during dry sliding. 

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 103, 113-120 p.
Keyword [en]
Adhesion; Carbides; Iron; Temperature distribution; Tool steel, Adhesive properties; Cementite; Classical molecular dynamics; Commensurability; Galling resistance; Lattice coherency; Temperature dependence; Work of adhesion, Molecular dynamics
National Category
Materials Engineering Nano Technology
Research subject
Materials Engineering
Identifiers
URN: urn:nbn:se:kau:diva-45815DOI: 10.1016/j.triboint.2016.06.027ISI: 000384777100012ScopusID: 2-s2.0-84978120893OAI: oai:DiVA.org:kau-45815DiVA: diva2:967625
Available from: 2016-09-09 Created: 2016-09-09 Last updated: 2016-12-07Bibliographically approved

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AlMotasem, AhmedBergström, JensGåård, AndersKrakhmalev, PavelHolleboom, Thijs
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