Ab initio prediction of strong interfacial bonding in the Fe|Al bimetallic composite system

Kamil Czelej , Krzysztof Kurzydłowski

Abstract

Atomic-scale calculations were used to investigate the formation of interfacial bonds in the Fe|Al bimetallic composite system. The results indicate that chemical bonds at pristine Fe|Al interface display more covalent character than constituent materials resulting in enhanced interface strength. Such an interface exhibits large cohesive energy exceeding significantly the value of bulk aluminum. The effect of two technologically relevant solute elements, i.e. carbon and magnesium on the interface strength was analyzed. Our robust yet simple computational model can be used to predict the most efficient combination of steels and aluminum alloys for cold pressure welding, leading to strong interfacial bonding
Author Kamil Czelej
Kamil Czelej,,
-
, Krzysztof Kurzydłowski (FME / DMPE)
Krzysztof Kurzydłowski,,
- Department of Material and Production Engineering
Journal seriesScripta Materialia, [Scripta Metallurgica et Materialia], ISSN 1359-6462, [0036-9748], (N/A 140 pkt)
Issue year2020
Vol177
Pages162-165
Publication size in sheets0.5
Keywords in EnglishInterfacial bonds, Cohesive energy, Fe|Al, DFT, Composite
ASJC Classification2200 General Engineering; 2500 General Materials Science; 3104 Condensed Matter Physics
DOIDOI:10.1016/j.scriptamat.2019.10.030
URL https://www.sciencedirect.com/science/article/pii/S1359646219306232
Internal identifierROC 19-20
Languageen angielski
LicenseJournal (articles only); published final; Other open licence; with publication
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 14-02-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.696; WoS Impact Factor: 2018 = 4.539 (2) - 2018=4.559 (5)
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