Structural and mechanical characterization of Al-based composite reinforced with heat treated Al2O3 particles

被引：45

作者：

Hossein-Zadeh, Mohsen ^{[1
]}

Mirzaee, Omid ^{[1
]}

Saidi, Peyman ^{[2
]}

机构：

[1] Semnan Univ, Dept Mat Engn, Semnan, Iran

[2] McMaster Univ, Dept Sci & Mat Engn, Hamilton, ON, Canada

来源：

MATERIALS & DESIGN | 2014年 / 54卷

关键词：

Al-Al2O3; composites; Heat treatment; Microstructure; Mechanical properties; MATRIX COMPOSITES; WEAR-RESISTANCE; MICROSTRUCTURE; FABRICATION; PARAMETERS; BEHAVIOR; ALUMINA; POWDER; MICRO; STIR;

D O I：

10.1016/j.matdes.2013.08.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the addition of 1.00 wt.% Al2O3 crystals to the metal matrix of the liquid aluminum was studied. In order to investigate the influence of heat treatment on activation of Al2O3 powders and mechanical properties of Al-Al2O3 composites, the Al2O3 particles were heated at 1000 degrees C. X-ray Diffraction (XRD) analysis used to characterize the crystal lattice of Al2O3 and its variation during heat treatment. The size and morphology of the Al2O3 grains was evaluated by Scanning Electron Microscopy (SEM). The results showed a considerable change in morphology of Al2O3 grains during the heat treatment. Mechanical evaluation such as hardness, compression and wear tests showed enhancement in the properties of Al-1.00 wt.% heat treated Al2O3 vs. Al-1.00 wt.% Al2O3 composite. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.

引用

页码：245 / 250

页数：6

共 23 条

[1] Nano-sized aluminum oxide reinforced commercial casting A356 alloy matrix: Evaluation of hardness, wear resistance and compressive strength focusing on particle distribution in aluminum matrix [J].