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Adhesion between ferrite iron-€“iron/cementite countersurfaces: A molecular dynamics study
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för ingenjörsvetenskap och fysik (from 2013).ORCID-id: 0000-0003-0205-0178
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för ingenjörsvetenskap och fysik (from 2013).ORCID-id: 0000-0001-6029-2613
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för ingenjörsvetenskap och fysik (from 2013).
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för ingenjörsvetenskap och fysik (from 2013). (Materials Engineering, Materials Science)ORCID-id: 0000-0002-9441-2502
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2016 (engelsk)Inngår i: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 103, s. 113-120Artikkel i tidsskrift (Fagfellevurdert) 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. 

sted, utgiver, år, opplag, sider
Elsevier, 2016. Vol. 103, s. 113-120
Emneord [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
HSV kategori
Forskningsprogram
Materialteknik
Identifikatorer
URN: urn:nbn:se:kau:diva-45815DOI: 10.1016/j.triboint.2016.06.027ISI: 000384777100012Scopus ID: 2-s2.0-84978120893OAI: oai:DiVA.org:kau-45815DiVA, id: diva2:967625
Tilgjengelig fra: 2016-09-09 Laget: 2016-09-09 Sist oppdatert: 2019-11-04bibliografisk kontrollert

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AlMotasem, Ahmed TamerBergström, JensGåård, AndersKrakhmalev, PavelHolleboom, Thijs Jan

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