Volume 18, Issue 1 (March 2021)                   IJMSE 2021, 18(1): 71-79 | Back to browse issues page


XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Rousta Z, Tohidlou E, Khosravi H. Influence of Erbium Addition on the Microstructural Evolution and Tensile Properties of Al/Mg2Si in-situ Metal Matrix Composites. IJMSE 2021; 18 (1) :71-79
URL: http://ijmse.iust.ac.ir/article-1-1728-en.html
Abstract:   (10165 Views)
This study deals with the effects of erbium (Er) addition on the microstructural evolution and tensile properties of Al-Mg2Si in-situ metal matrix composites. The morphology of primary Mg2Si and eutectic phases were observed in details using optical microscope and scanning electron microscopy (SEM). The results showed that the increase of Er content has a slight effect on the size and morphology of primary Mg2Si phases, but the eutectic structure evolves from the coarse structure into the fine one. Also, with Er addition the eutectic mixtures of Al and Mg2Si with fibrous morphology has been developed instead of the flake like Al-Mg2Si eutectic microstructure. Meanwhile, Al3Er phase was observed in the samples containing Er. The ultimate tensile strength (UTS) of the composite changes under the various content of Er. The maximum strength was found at the 0.6 wt% Er with the fine eutectic microstructure. The study of SEM micrographs from the fracture surface of composites revealed that Er addition changes the fracture mode from brittle to ductile one with fine dimples. The mechanism of microstructural evolution was discussed in details.
Full-Text [PDF 1105 kb]   (5445 Downloads)    
Type of Study: Research Paper | Subject: Casting and Solidification

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2022 All Rights Reserved | Iranian Journal of Materials Science and Engineering

Designed & Developed by : Yektaweb