Preparation of Al2O3/Al-Si Composites by In Situ Reaction of Fe2O3+MnO2/Al System-Reference-Cited by-同舟云学术

Preparation of Al₂O₃/Al-Si Composites by In Situ Reaction of Fe₂O₃+MnO₂/Al System

Published:2015-04 Issue: Volume:816 Page:48-53
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Zhang Jing¹,Yu Hua Shun²,Shuai Xin Ting¹,Chen Hong Mei¹,Min Guang Hui²

Affiliation:

1. Jiangsu University of Science and Technology

2. Shandong University

Abstract

Al2O3 particles reinforced ZL109 composites were prepared by in-situ reaction between Fe2O3+MnO2 and Al in this paper. The influence of ratio of Mn to Fe on the morphologies of Al-Si-Mn-Fe phase and mechanical properties of the composites was investigated. The microstructure was studied by electron probe micro-analyzer (EPMA) and transmission electron microscopy (TEM). The results show that the Al2O3 particles displaced by the Fe2O3+MnO2/Al system are in nanosize. The acicular Al-Si-Fe phases change from acicular to polygonal shape and become smaller with the increase manganese content. The hardness test results have no big difference on the composites. However, the ultimate tensile strength at room temperature and 350°C enhance evidently with the increasing of Mn/Fe.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.816.48.pdf

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