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Metallurgical and Materials Transactions A
Erschienen in: Metallurgical and Materials Transactions A 1/2016

19.10.2015

Precipitation of Non-spherical Particles in Aluminum Alloys Part II: Numerical Simulation and Experimental Characterization During Aging Treatment of an Al-Mg-Si Alloy

verfasst von: Qiang Du, Bjørn Holmedal, Jesper Friis, Calin D. Marioara

Erschienen in: Metallurgical and Materials Transactions A | Ausgabe 1/2016

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Abstract

This is the second part of the investigation on the precipitation of needle-shaped particles. In part I, two particle aspect ratio-dependent correction factors are introduced to describe the effects of non-spherical precipitate shape on precipitate growth kinetics. In this part II, the two factors are integrated into a CALPHAD-coupled multi-component Kampmann–Wagner numerical model to predict precipitation kinetics of needle-shaped metastable particles during aging treatment of an Al-Mg-Si alloy. The predictions are compared with transmission electron microscopy observations on precipitate number density, volume fraction, and size distribution. Improved agreement is reported, and in particular, the shape of the predicted particle size distribution density function becomes more realistic.
Vorheriger Artikel Precipitation of Non-Spherical Particles in Aluminum Alloys Part I: Generalization of the Kampmann–Wagner Numerical Model
Nächster Artikel A Transient Heat Transfer Model for Assessment of Flash Temperature During Dry Sliding Wear in a Pin-on-Disk Tribometer

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Metadaten
Titel
Precipitation of Non-spherical Particles in Aluminum Alloys Part II: Numerical Simulation and Experimental Characterization During Aging Treatment of an Al-Mg-Si Alloy
verfasst von
Qiang Du
Bjørn Holmedal
Jesper Friis
Calin D. Marioara
Publikationsdatum
19.10.2015
Verlag
Springer US
Erschienen in
Metallurgical and Materials Transactions A / Ausgabe 1/2016
Print ISSN: 1073-5623
Elektronische ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-015-3196-6

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