Structure and Nanomechanical Properties of the Al-Si-Fe Alloy Produced by Blowing the Melt with Oxygen

被引：6
|
作者：
Chikova, O. A. [1 ]
Finkel'shtein, A. B. [1 ]
Shefer, A. A. [1 ]
机构：
[1] Ural Fed Univ First President Russia BN Yeltsin, Ekaterinburg 620002, Russia
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2018年 / 119卷 / 07期
关键词：
aluminum matrix composite material; microstructure; scanning electron microscopy; EDS analysis; EBSD analysis; atomic force microscopy; nanoindentation; mechanical properties; MECHANICAL-PROPERTIES;
D O I：
10.1134/S0031918X18070037
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The microstructure and nanomechanical properties of the Al-7% Si-1% Fe as-cast alloy produced by blowing oxygen into the melt have been studied. Blowing oxygen into liquid aluminum alloy results in the formation of Al2O3 nanoparticles, which increase the strength of the alloy after subsequent cooling and crystallization. Scanning electron and atomic force microscopy (EDS and EBSD analyses) have been used to examine the microstructure of the Al-7% Si-1% Fe alloy. The nanohardness and Young's modulus of alpha-Al in microvolumes are measured using nanoindentation. Blowing oxygen into the melt has been found to significantly decrease the random scatter of Young's modulus of alpha-Al. The results have been considered through the lens of modern knowledge of how composite materials of the aluminum matrix are strengthened.
引用
收藏
页码：685 / 690
页数：6
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