Microstructure and Properties of Al-Mg-Si-Li Alloys with Different Mg Content

DOI

10.2991/icadme-15.2015.205How to use a DOI?

Keywords

Mg content; Al-Mg-Si-Li alloys; Microstructure; Properties.

Abstract

Microstructure and properties of Al-Mg-Si-Li alloys with different Mg content were investigated. The microstructure was observed by optical microscopy, the phases were determined by X-rays diffractometry, the hardness was monitored by Vickers, the mechanical properties were determined by tensile tester, fracture morphology was conducted by scanning electron microscopy. The tensile strength and the elongation of the Al-Si-Li alloys is improved by the addition of magnesium. With the increment of Mg content, the -Al is refined, the amount of primary Si decreases, the eutectic increases, and the mechanical properties of the alloys are improved. The alloys containing 3.0wt.%Mg has excellent strength and elongation. If the Mg content is too much, the alloys have poor mechanical properties as Chinese script Mg2Si are present.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhongkui Zhao
AU  - Qing Gao
AU  - Yu Yao
AU  - Bozu Liu
AU  - Di Zhang
AU  - Quiqing Wang
PY  - 2015/10
DA  - 2015/10
TI  - Microstructure and Properties of Al-Mg-Si-Li Alloys with Different Mg Content
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 1109
EP  - 1113
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.205
DO  - 10.2991/icadme-15.2015.205
ID  - Zhao2015/10
ER  -