Issue |
MATEC Web Conf.
Volume 67, 2016
International Symposium on Materials Application and Engineering (SMAE 2016)
|
|
---|---|---|
Article Number | 05019 | |
Number of page(s) | 5 | |
Section | Chapter 5 Metallurgical Engineering | |
DOI | https://doi.org/10.1051/matecconf/20166705019 | |
Published online | 29 July 2016 |
Evolution of Iron-containing Compounds in Al-Cu Alloys during Heat Treatment
Key laboratory for Anisotropy and Texture of Materials; (Ministry of Education) Northeastern University, Shenyang, 110004, China
a k.liu1350@hotmail.com
b zhaog@mail.neu.edu.cn
c tiann@atm.neu.edu.cn
* Corresponding author: k.liu1350@hotmail.com
The evolution of iron-containing compounds in Al-Cu 206 cast alloy during solution treatment has been investigated. Results show that platelet β-Fe and Chinese script α-Fe are the two iron-containing compounds in as-cast condition. Little change is observed on β-Fe during solution treatment. However, fine blocky post β-Fe begins to form on α-Fe when solution treated at 520°C for 8hrs. When soaking time is extended to 24 hrs, α–Fe is found to decompose to fine branches while post β-Fe present as clusters on these branches. Al-Cu-Mg-Si Q phase is observed to form at the edge of decomposed α-Fe, possibly the result of Si from decomposed α-Fe.
© The Authors, published by EDP Sciences, 2016
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