Statistical analysis of AA-1050 localized corrosion in anhydrous ethanol

Gazenbiller, Eugen; Arya, Visheet; Reitz, Rüdiger; Engler, Thomas W.; Oechsner, Matthias; Höche, Daniel

doi:10.1016/j.corsci.2020.109137

Cited by 7 publications

(2 citation statements)

References 53 publications

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“…Although these studies provide a qualitative characterization of the involved reaction, a reliable simulative approach requires more quantitative information starting with time dependent resolution of initiation times and the proceeding reaction kinetics. Consequently, the present work focuses on tailoring previously used experimental reactors/methods to deliver the essential parameters for developing a suitable method to simulate this corrosion mechanism and to analyze experimental data [20]. This work is therefore largely divided into 4 sections:…”

Section: Definition Of Problemmentioning

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: Definition Of Problemmentioning

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

“…For the two latter points, statistical effects were investigated by considering Weibull-distributions of the surface flux leading to localisation of mass loss, one cause for pitting corrosion [20]. The description of pitting corrosion of aluminium via Weibull statistics was discussed by [21]. The flow of data described above is depicted in fig.…”

Section: Modelingmentioning

confidence: 99%

Strength and Ductility Loss of Magnesium-Gadolinium Due to Corrosion in Physiological Environment: Experiments and Modeling

Steglich

Besson

Reinke

et al. 2023

Preprint

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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

Cited by 7 publications

References 53 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

Strength and Ductility Loss of Magnesium-Gadolinium Due to Corrosion in Physiological Environment: Experiments and Modeling

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

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