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Effect of Short Solution Heat Treatment Time on the Microstructure and Properties of Al-Si-Mg-Cu Alloys

Authors
  • Zhuang, P.1
  • Shi, H.1
  • Zhang, Z.1
  • Chai, R.1
  • Zan, J.2
  • Du, X.3
  • 1 School of Materials Science and Engineering, Hefei University of Technology, 230009 , (China)
  • 2 Anhui Topplo Automotive Technology Co., Ltd, 230009 , (China)
  • 3 Engineering Research Center of High Performance Copper Alloy Materials and Processing, Ministry of Education, Hefei University of Technology, 230009 , (China)
Type
Published Article
Journal
Practical Metallography
Publisher
De Gruyter
Publication Date
Dec 30, 2021
Volume
58
Issue
12
Pages
763–780
Identifiers
DOI: 10.1515/pm-2021-0073
Source
De Gruyter
Keywords
License
Yellow

Abstract

In this work, a solution heat treatment of Al-Si-Mg-Cu casting alloy was analyzed. A new short solution heat treatment (SHT) with only 60 min has been allowed. The results revealed that this short SHT enables the improvement of the dendritic structure and the spheroidization of the eutectic silicon particles. Furthermore, the alloy showed improved mechanical properties when compared to the same alloy subjected to a longer SHT of 4 h. It was observed that increasing the SHT temperature can accelerate the dissolution and homogenization of the silicon particles and intermetallic precipitates in the matrix.

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