Yiku Xu
Investigation of Microstructure Evolution and Phase Selection of Peritectic Cuce Alloy During High-Temperature Gradient Directional Solidification
Xu, Yiku; Huang, Zhaohao; Chen, Yongnan; Xiao, Junxia; Hao, Jianmin; Hou, Xianghui; Liu, Lin
Authors
Zhaohao Huang
Yongnan Chen
Junxia Xiao
Jianmin Hao
Xianghui Hou
Lin Liu
Abstract
In this work, a CuCe alloy was prepared using a directional solidification method at a series of withdrawal rates of 100, 25, 10, 8, and 5 ?m/s. We found that the primary phase microstructure transforms from cellular crystals to cellular peritectic coupled growth and eventually, changes into dendrites as the withdrawal rate increases. The phase constituents in the directionally solidified samples were confirmed to be Cu2Ce, CuCe, and CuCe + Ce eutectics. The primary dendrite spacing was significantly refined with an increasing withdrawal rate, resulting in higher compressive strength and strain. Moreover, the cellular peritectic coupled growth at 10 ?m/s further strengthened the alloy, with its compressive property reaching the maximum value of 266 MPa. Directional solidification was proven to be an impactful method to enhance the mechanical properties and produce well-aligned in situ composites in peritectic systems.
Citation
Xu, Y., Huang, Z., Chen, Y., Xiao, J., Hao, J., Hou, X., & Liu, L. (2020). Investigation of Microstructure Evolution and Phase Selection of Peritectic Cuce Alloy During High-Temperature Gradient Directional Solidification. Materials, 13(4), Article 911. https://doi.org/10.3390/ma13040911
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 15, 2020 |
Online Publication Date | Feb 19, 2020 |
Publication Date | Feb 19, 2020 |
Deposit Date | Feb 23, 2020 |
Publicly Available Date | Mar 29, 2024 |
Journal | Materials |
Electronic ISSN | 1996-1944 |
Publisher | MDPI |
Peer Reviewed | Peer Reviewed |
Volume | 13 |
Issue | 4 |
Article Number | 911 |
DOI | https://doi.org/10.3390/ma13040911 |
Keywords | CuCe alloy; directional solidification; primary spacing; phase selection; cellular peritectic coupled growth |
Public URL | https://nottingham-repository.worktribe.com/output/4000649 |
Publisher URL | https://www.mdpi.com/1996-1944/13/4/911 |
Files
Materials-709439
(6.8 Mb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
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