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2018 | OriginalPaper | Buchkapitel

The Microstructure Evolution of Al–Mg–Si–Mn–Er–Zr Alloy During Homogenization

verfasst von : Xiang Zhang, Hui Huang, Xiaoli Liu, Yifei Liu, Hongbo Wang, Shengping Wen, Kunyuan Gao, Xiaolan Wu

Erschienen in: High Performance Structural Materials

Verlag: Springer Singapore

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Abstract

The formation of non-equilibrium intermetallic phases during solidification significantly deteriorates the mechanical properties of Al–Mg–Si–Mn–Zr–Er alloy, but homogenization heat treatment can effectively reduce these residual phases. Therefore, it is necessary to study the evolution of these non-equilibrium intermetallic phases during different homogenization treatment. In this study, the methods we used are OM, SEM in combination with EDS, XRD and TEM. The results showed that non-equilibrium intermetallic phases between grains are mainly Al0.5Fe3Si0.5, Al0.7Fe3Si0.3 and Al5Mn12Si7. After homogenization, the main residual phase is Al5Mn12Si7. Compared with single homogenization, two-stage homogenization can effectively reduce the homogenization time and is good for the precipitation of fined Al3(Er, Zr) particles.

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Metadaten
Titel
The Microstructure Evolution of Al–Mg–Si–Mn–Er–Zr Alloy During Homogenization
verfasst von
Xiang Zhang
Hui Huang
Xiaoli Liu
Yifei Liu
Hongbo Wang
Shengping Wen
Kunyuan Gao
Xiaolan Wu
Copyright-Jahr
2018
Verlag
Springer Singapore
DOI
https://doi.org/10.1007/978-981-13-0104-9_15

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