Rapid Spheroidization Process of S Phase (Al2CuMg) in the As-Cast 2024 Al Alloy Induced by High-Energy Electropulsing-Reference-Cited by-同舟云学术

Rapid Spheroidization Process of S Phase (Al2CuMg) in the As-Cast 2024 Al Alloy Induced by High-Energy Electropulsing

Published:2023-10-29 Issue:21 Volume:16 Page:6939
ISSN:1996-1944
Container-title:Materials
language:en
Short-container-title:Materials

Author:

Wei Lai¹,Xu Xiaofeng¹²,Zhao Yang²³,Yan Xudong¹,Zhou Yachong¹,Yu Yongqiang¹,Wu Zhicheng¹

Affiliation:

1. Key Laboratory of Automobile Materials, Ministry of Education, Department of Materials Science and Engineering, Jilin University, Changchun 130025, China

2. Weihai Institute for Bionics, Jilin University, Weihai 264400, China

3. Key Laboratory of Bionic Engineering, Ministry of Education, College of Biological and Agricultural Engineering, Jilin University, Changchun 130025, China

Abstract

The effect of electropulsing treatment (EPT) on the microstructure of the as-cast 2024 Al alloy at room temperature was investigated. The results show that EPT remarkably accelerated the spheroidizing of second phase (S phase) in the as-cast 2024 Al alloy. The mechanism for rapid spheroidizing of the second phase was proposed based on not only the accelerated dissolution, but also the growth of particles. The morphology and size of the secondary phase could be controlled by changing the cooling speed of the specimen after EPT. Furthermore, the dissolving process of the randomly distributed S phase was recognized as the combination effect of the two basic dissolving ways. Hence, the EPT can be applied to improve the microstructure and properties of the alloys.

Funder

Provincial Key Research and Development Program of Jilin

National Key Research and Development Program of China

Shandong Provincial Natural Science Foundation

National Natural Science Foundation of China

Talent Development-Excellent Young Talents Fund Project, China

Publisher

MDPI AG

Subject

General Materials Science

Link

https://www.mdpi.com/1996-1944/16/21/6939/pdf

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