Effect of Compression Process of MWCNT-Reinforced Al6061 Powder on Densification Characteristics and Its Mechanical Properties

被引：8

作者：

Seo, Hyung Yoon ^{[1
]}

Jiang, Long Rui ^{[2
]}

Kang, Chung Gil ^{[3
]}

Jin, Chul Kyu ^{[4
]}

机构：

[1] GCRC SOP, San 30 Chang Jun Dong, Busan 46241, South Korea

[2] Pusan Natl Univ, Grad Sch, Precis Mfg Syst Div, San 30 Chang Jun Dong, Busan 46241, South Korea

[3] Pusan Natl Univ, Sch Mech Engn, San 30 Chang Jun Dong, Busan 46241, South Korea

[4] Kyungnam Univ, Sch Mech Engn, 7 Kyungnamdaehak Ro, Changwon Si 51767, Gyeongsangnam D, South Korea

来源：

METALS | 2017年 / 7卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

MWCNTs/Al6061; composites; open-die forging; sintering; mechanical properties; microstructure; ALUMINUM COMPOSITE; CARBON NANOTUBES;

D O I：

10.3390/met7100437

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, aluminium-based (Al6061) composites with 1, 3, 5, 7, and 10 vol % of multi-walled carbon nanotubes (MWCNTs) are investigated. The composites are fabricated by high-energy ball milling, cold-compacting at room temperature under compacting pressures of 400-1600 MPa, and sintering at 620 degrees C in an argon gas atmosphere. Thereafter, the hardness and microstructure of MWCNTs/Al6061 composites are examined. Further, to improve the relative density and hardness level of the complex material, open-die forging is performed after cold-compacting under 1 GPa pressure at room temperature and sintering at 620 degrees C. The open-die forging parameters include 1, 3, 5, 7, and 10 vol % MWCNTs/Al6061, and Al6061. The experimental results show that the mechanical properties of the composites are significantly superior to that of the Al6061 alloy after undergoing cold-compacting, sintering, and open-die forging.

引用

页数：14

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