REVIEW ARTICLE
Effect of Rare Earth Upon As-Cast Microstructure and High Temperature Performance of ZA40 Alloy
Jiaming Ji*, 1, 2, Guocui Meng1, 2, Yuanyong Lu3, Honghong Shao1, 2, Dongqing Gu1, 2
1 School of Material Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P.R. China
Article Information
Identifiers and Pagination:
Year: 2014Volume: 8
First Page: 251
Last Page: 256
Publisher Id: TOMEJ-8-251
DOI: 10.2174/1874155X01408010251
Article History:
Received Date: 25/07/2014Revision Received Date: 04/08/2014
Acceptance Date: 04/08/2014
Electronic publication date: 16/9/2014
Collection year: 2014
© 2014 Jiaming et al
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
In testing comparison, this study is made on the modification effect of 0.05 wt.% La-rich rare earth (RE) upon as-cast microstructure, mechanical properties of materials at high temperatures (100, 150, 200°C) and wear resistance under different temperatures (100and 200°C) of ZA40 alloy containing Si. The addition of RE shows that it can not only effectively refine Al-rich and Cu-rich phase, but also reduce the amount of needle-like eutectic silicon, and then make the size of massive primary silicon phase smaller. Thus, there are the improvement of strength, ductility and wear resistance of materials at high temperature. The analyses are also conducted on the mechanism of underlying RE elements.
Keywords: High temperature performance, high temperature wear resistance, microstructure, mixed rare earth, ZA40.
