Localized Strengthening of Al-Based Casting Alloys by Automatized Optimization of Laser Heat Treatment

Ludwig, A.; Holzmann, T.

doi:10.1007/978-3-319-65133-0_16

A. Ludwig¹⁰ &
T. Holzmann¹⁰

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

The mechanic properties of many Aluminum alloys can be changed by a heat treatment and quenching procedure. If locally a strengthening of the alloy is needed, a localized heat treatment and quenching procedure may be an alternative to the energy intensive and costly treatment of the whole part. However, it is not obvious which process parameters are required in order to achieve the desired local strengthening. Thus, a numerical simulation of local heating and cooling in combination with predictions of the material constitution and thus local property changes is used for a multicriteria optimization approach where the desired local strengthening is defined as target function. The optimization scheme performs a series of process simulations where laser power and exposure time are varied automatically until the effective process is found which ensures sufficient local strengthening of the alloy.

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Authors and Affiliations

Montanuniversitaet Leoben, Austria
A. Ludwig (Chair of Simulation and Modelling of Metallurgical Processes) & T. Holzmann (Chair of Simulation and Modelling of Metallurgical Processes)

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A. Ludwig
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T. Holzmann
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Editors and Affiliations

Metallurgical and Materials Engineering Department, The University of Alabama, Tuscaloosa, Alabama, USA
Laurentiu Nastac (Associate Professor of Metallurgical and Materials Engineering, Key FEF Professor and the Director of the Solidification Laboratory and the UA-COE foundry) (Associate Professor of Metallurgical and Materials Engineering, Key FEF Professor and the Director of the Solidification Laboratory and the UA-COE foundry)
University of Science and Technology Beijing, China
Lifeng Zhang (Professor and the Dean of the School of Metallurgical and Ecological Engineering, Distinguished Professor) (Professor and the Dean of the School of Metallurgical and Ecological Engineering, Distinguished Professor)
Yangtze River Scholars, China
Lifeng Zhang (Professor and the Dean of the School of Metallurgical and Ecological Engineering, Distinguished Professor) (Professor and the Dean of the School of Metallurgical and Ecological Engineering, Distinguished Professor)
University of Illinois, USA
Brian G. Thomas (Gauthier Professor of Mechanical Engineering, Director of the Continuous Casting Consortium) (Gauthier Professor of Mechanical Engineering, Director of the Continuous Casting Consortium)
Northeastern University (NEU), Shenyang, China
Miaoyong Zhu (Professor and Dean of Metallurgy School (MS) (Professor and Dean of Metallurgy School (MS)
Metallurgy Department, Montanuniversitaet Leoben, Austria
Andreas Ludwig (Full Professor) (Full Professor)
Materials Science and Technology Division, Oak Ridge National Laboratory, USA
Adrian S. Sabau (Senior Research Staff Member) (Senior Research Staff Member)
University of Greenwich, London, UK
Koulis Pericleous (Chair of Computational Fluid Dynamics, Director of the Centre for Numerical Modelling and Process Analysis) (Chair of Computational Fluid Dynamics, Director of the Centre for Numerical Modelling and Process Analysis)
Ecole des Mines de Nancy (Lorraine University), France
Hervé Combeau (professor) (professor)

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Ludwig, A., Holzmann, T. (2016). Localized Strengthening of Al-Based Casting Alloys by Automatized Optimization of Laser Heat Treatment. In: Nastac, L., et al. CFD Modeling and Simulation in Materials Processing 2016. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-65133-0_16

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DOI: https://doi.org/10.1007/978-3-319-65133-0_16
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-65132-3
Online ISBN: 978-3-319-65133-0
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)

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