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Mechanistic insights into chemical corrosion of AA1050 in ethanol‐blended fuels with water contamination via phase field modeling

Gazenbiller, Eugen ; Arya, Visheet ; Reitz, Rüdiger ; Oechsner, Matthias ; Zheludkevich, Mikhail L. ; Höche, Daniel (2024)
Mechanistic insights into chemical corrosion of AA1050 in ethanol‐blended fuels with water contamination via phase field modeling.
In: Materials and Corrosion = Werkstoffe und Korrosion, 75 (9)
doi: 10.1002/maco.202414388
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

Aluminum alloys are widely used in automotive construction, and since the introduction of biogenic ethanol into fuels, the issue of nonaqueous alcoholate corrosion has become an important topic. In this paper, the kinetics of AA1050 temperature‐induced alcoholate pitting corrosion are examined experimentally with a specially constructed microreactor. The generated data are utilized to create a phase field model for the pit growth phase. The effects of ethanol‐blend composition and water content are quantitatively assessed and simulated. Phase field simulations allow for the first time the mechanistic characterization of the chemical corrosion process with a water content of up to 0.3% and an estimation of relevant reaction parameters at temperatures of up to 150°C. The approach can further be utilized to develop strategies for minimizing corrosion risk in‐service.

Typ des Eintrags: Artikel
Erschienen: 2024
Autor(en): Gazenbiller, Eugen ; Arya, Visheet ; Reitz, Rüdiger ; Oechsner, Matthias ; Zheludkevich, Mikhail L. ; Höche, Daniel
Art des Eintrags: Bibliographie
Titel: Mechanistic insights into chemical corrosion of AA1050 in ethanol‐blended fuels with water contamination via phase field modeling
Sprache: Englisch
Publikationsjahr: September 2024
Ort: Weinheim
Verlag: Wiley-VCH
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Materials and Corrosion = Werkstoffe und Korrosion
Jahrgang/Volume einer Zeitschrift: 75
(Heft-)Nummer: 9
DOI: 10.1002/maco.202414388
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Kurzbeschreibung (Abstract):

Aluminum alloys are widely used in automotive construction, and since the introduction of biogenic ethanol into fuels, the issue of nonaqueous alcoholate corrosion has become an important topic. In this paper, the kinetics of AA1050 temperature‐induced alcoholate pitting corrosion are examined experimentally with a specially constructed microreactor. The generated data are utilized to create a phase field model for the pit growth phase. The effects of ethanol‐blend composition and water content are quantitatively assessed and simulated. Phase field simulations allow for the first time the mechanistic characterization of the chemical corrosion process with a water content of up to 0.3% and an estimation of relevant reaction parameters at temperatures of up to 150°C. The approach can further be utilized to develop strategies for minimizing corrosion risk in‐service.

Freie Schlagworte: aluminum, finite element method, non‐aqueous corrosion, phase field model
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau
600 Technik, Medizin, angewandte Wissenschaften > 670 Industrielle und handwerkliche Fertigung
Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Fachgebiet und Institut für Werkstoffkunde - Zentrum für Konstruktionswerkstoffe - Staatliche Materialprüfungsanstalt Darmstadt (IfW-MPA)
Hinterlegungsdatum: 28 Nov 2024 06:17
Letzte Änderung: 28 Nov 2024 07:06
PPN: 524192812
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