Consolidated Al/Al2O3 Nanocomposites by Equal Channel Angular Pressing and Hot Extrusion

被引：21
|
作者：
Casati, Riccardo [1 ]
Vedani, Maurizio [1 ]
Dellasega, David [2 ]
Bassani, Paola [3 ]
Tuissi, Ausonio [3 ]
机构：
[1] Politecn Milan, Dept Mech Engn, I-20156 Milan, Italy
[2] Politecn Milan, Dept Energy, I-20156 Milan, Italy
[3] CNR IENI, Lecce, Italy
来源：
MATERIALS AND MANUFACTURING PROCESSES | 2015年 / 30卷 / 10期
关键词：
Extrusion; Milling; Ball; Nanocomposite; ECAP; Aluminum; MMNC; Alumina; Powder; METAL-MATRIX COMPOSITES; CARBON NANOTUBES; ALLOY;
D O I：
10.1080/10426914.2014.912305
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work is aimed at producing Al-matrix nanocomposites through the powder metallurgy (PM) process. An initial study on pure aluminum powder was performed to analyze the performance of different PM techniques. In particular, Al powder was refined via high-energy ball milling and consolidated by hot extrusion and equal channel angular pressing. The latter revealed to be a very efficient procedure for powder compaction (high density and hardness of the products) and it was adopted for the production of Al-based composites reinforced with 2% and 5wt% of Al2O3 nanoparticles. The composites exhibited higher hardness than the pure aluminum sample.
引用
收藏
页码：1218 / 1222
页数：5
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