Dry corrosion of the aluminium alloy (EN AC‐48100), influence of temperature, ethanol and water content

Tuchscheerer, F.; Krüger, Lutz; Mandel, Marcel; Müller, Sven; Liebsch, S.

doi:10.1002/mawe.201300028

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…Thus, aluminium is a preferred material for automotive components with a high strength-to-weight ratio, recyclability, cost-effective large-scale manufacturability (machining, forming) and diverse choice of alloying elements [5]. However, aluminium when used in contact with water-free ethanol fuels is highly susceptible to pitting corrosion at higher temperatures, known as alkoxide or alcoholate corrosion [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of innovative microreactor for examination of alkoxide pitting corrosion and data generation for numerical transient model

Arya,

Gazenbiller,

Reitz

et al. 2024

Materialwissenschaft Werkst

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In fuel‐bearing components, particularly in automotive applications operating at elevated temperatures, the durability of light metals is significantly influenced by their susceptibility to alkoxide corrosion. Alkoxide corrosion is characterized by its spontaneous nature and exceptionally rapid degradation of materials once initiated. This study presents an innovative high‐pressure and high‐temperature micro‐reactor, which enables precise measurements with superior sensitivity for determining the exact initiation times and reaction rates of pitting corrosion. Exemplified tests of surface roughness and water content effect on pitting initiation times were conducted and data was generated for a numerical phase field model to demonstrate the reactor capabilities. Experimental findings suggest that impurities present on both the material surface and in the fuel exhibit a significant influence on corrosivity, thereby affecting the reliability of the components. Moreover, the experimental data points have been utilized to extract the corrosion kinetics and calibrate the numerical model. The initial findings successfully demonstrate the ability to replicate corrosion kinetics and accurately represent pit morphologies and estimate reaction‐related parameters in a predictive manner.

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Section: Introductionmentioning

confidence: 99%

Evaluation of innovative microreactor for examination of alkoxide pitting corrosion and data generation for numerical transient model

Arya,

Gazenbiller,

Reitz

et al. 2024

Materialwissenschaft Werkst

View full text Add to dashboard Cite

show abstract

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

Gazenbiller,

Arya,

Reitz

et al. 2024

Materials & Corrosion

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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.

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Statistical analysis of AA-1050 localized corrosion in anhydrous ethanol

et al. 2021

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Dry corrosion of the aluminium alloy (EN AC‐48100), influence of temperature, ethanol and water content

Cited by 3 publications

References 10 publications

Evaluation of innovative microreactor for examination of alkoxide pitting corrosion and data generation for numerical transient model

Evaluation of innovative microreactor for examination of alkoxide pitting corrosion and data generation for numerical transient model

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

Statistical analysis of AA-1050 localized corrosion in anhydrous ethanol

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