Effect of Er addition on the microstructural characteristics and compressive behavior of insitu Al-15 wt. % Mg2Si composites

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ROUSTA ZAHRA; KHOSRAVI HAMED; Tohidlou Esmaeil

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Journal: Journal of Science and Technology of Composites Year:2019 | Volume:6 | Issue:2 Page(s): 242-247

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Title

Effect of Er addition on the microstructural characteristics and compressive behavior of insitu Al-15 wt. % Mg2Si composites

Author(s)

ROUSTA ZAHRA | KHOSRAVI HAMED | Tohidlou Esmaeil | Issue Writer Certificate

Keywords

Al-Mg2Si in situ compositeQ1

ErbiumQ1

MicrostructureQ2

Compressive strengthQ2

Abstract

The modification of Mg2Si is considered as a key parameter to improve the mechanical properties of Al-Mg2Si composites. In the present work, the effect of Erbium (Er) on the microstructural charactristics and compressive behavior of cast Al-15 wt. % Mg2Si in situ metal matrix composite was studied. Microstructural examination was conducted using optical and scanning electron microscopy (SEM). The results showed that the size of the primary Mg2Si phase was reduced from 14 to 8. 5 μ m with the addition of 0. 6 wt. % Er and the its morphology was modified from a coarse dendritic shape to a polyhedral shape. Through the addition of Er, the morphology of eutectic Mg2Si was also altered from coarse flake-like to a fine fibrous form. Besides, it was found that some Al3Er compound were formed during solidification. Compression test indicated that Er addition enhanced the Compressive strength of the composite. The highest Compressive strength was obtained for the 0. 6 wt. % of Er-modified composite with 32% increase.

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APA: Copy

ROUSTA, ZAHRA, KHOSRAVI, HAMED, & Tohidlou, Esmaeil. (2019). Effect of Er addition on the microstructural characteristics and compressive behavior of insitu Al-15 wt. % Mg2Si composites. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), 6(2 ), 242-247. SID. https://sid.ir/paper/251594/en

Vancouver: Copy

ROUSTA ZAHRA, KHOSRAVI HAMED, Tohidlou Esmaeil. Effect of Er addition on the microstructural characteristics and compressive behavior of insitu Al-15 wt. % Mg2Si composites. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC)[Internet]. 2019;6(2 ):242-247. Available from: https://sid.ir/paper/251594/en

IEEE: Copy

ZAHRA ROUSTA, HAMED KHOSRAVI, and Esmaeil Tohidlou, “Effect of Er addition on the microstructural characteristics and compressive behavior of insitu Al-15 wt. % Mg2Si composites,” JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), vol. 6, no. 2 , pp. 242–247, 2019, [Online]. Available: https://sid.ir/paper/251594/en

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