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Effects of Internal Oxidation Methods on Microstructures and Properties of Al2O3 Dispersion-Strengthened Copper Alloys Read chapter Read first chapter

2018 | OriginalPaper | Chapter

Effect of Erbium–Zirconium Composite Modifications on the Microstructure and Mechanical Properties of A356 Aluminum Alloy

Authors : Liantao Ji, Wei Wang, Hui Huang, Shengping Wen, Kunyuan Gao, Xiaolan Wu

Published in: High Performance Structural Materials

Publisher: Springer Singapore

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Abstract

The Al–7Si–0.3 Mg (A356) alloys with various contents of the rare earth element Er, Zr were prepared by the conventional casting technique. The effect of Er, Zr composite modifications on the microstructure and mechanical properties of A356 alloys was investigated using the optical microscopy (OM), scanning electronic microscopy (SEM), energy spectrum analysis and mechanical testing. The results show that addition of 0.3 wt% Er and Zr had an excellent refining effect on α-Al grains and a modification effect on Si containing phase in the as-cast state. The size of α-Al dendrite reduced, the acicular eutectic Si became short rod-shaped or granular. When Er and Zr content was 0.3 wt%, the tensile strength and hardness of the alloys reached up to maximum values.

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previous chapter Microstructure and Properties of Spray-Formed Si–30Al Alloy Used for Electronic Packaging
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Metadata
Title
Effect of Erbium–Zirconium Composite Modifications on the Microstructure and Mechanical Properties of A356 Aluminum Alloy
Authors
Liantao Ji
Wei Wang
Hui Huang
Shengping Wen
Kunyuan Gao
Xiaolan Wu
Copyright Year
2018
Publisher
Springer Singapore
Book
High Performance Structural Materials

Print ISBN: 978-981-13-0103-2

Electronic ISBN: 978-981-13-0104-9

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-981-13-0104-9_11

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