Quantitative prediction of the mechanical properties of precipitation-hardened alloys with special application to Al–Mg–Si

Proper design of the heat treatments of metallic materials is crucial for creating a suitable microstructure resulting in the desired properties. In this paper, we present a multi-component simulation procedure for the quantitative prediction of yield strength, fracture strain, and fracture toughnes...

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Published inMaterials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 703; pp. 380 - 385
Main Authors Österreicher, Johannes Albert, Papenberg, Nikolaus Peter, Kumar, Manoj, Ma, Duancheng, Schwarz, Sabine, Schlögl, Carina Maria
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier B.V 04.08.2017
Elsevier BV
Subjects
Aging (artificial)
Aluminum alloys
Aluminum base alloys
CALPHAD
Computer simulation
Fracture toughness
Heat treating
Magnesium base alloys
Mechanical properties
Microstructure
Aluminum alloys
CALPHAD
Microstructure
Fracture toughness
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Summary:Proper design of the heat treatments of metallic materials is crucial for creating a suitable microstructure resulting in the desired properties. In this paper, we present a multi-component simulation procedure for the quantitative prediction of yield strength, fracture strain, and fracture toughness of precipitation-hardened alloys, with special emphasis on Al–Mg–Si alloys. The procedure combines thermokinetic and micromechanical models, taking the microstructural information in terms of different populations of various second-phase particles into account. The predictions are compared to the results of experiments performed on AA6082 samples subjected to different artificial aging times, and good quantitative agreement is demonstrated.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2017.07.080