Effect of Carbon Nanotubes as Reinforcement on the Mechanical Properties of Aluminum-Copper-Magnesium Alloy

被引：29

作者：

Anas, N. S. ^{[1
,2
]}

Dash, R. K. ^{[2
]}

Rao, Tata N. ^{[1
]}

Vijay, R. ^{[1
]}

机构：

[1] Int Adv Res Ctr Powder Met & New Mat ARCI, Hyderabad 500005, Andhra Prades, India

[2] Univ Hyderabad, Sch Engn Sci & Technol, Hyderabad 500046, Andhra Prades, India

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2017年 / 26卷 / 07期

关键词：

Al-Cu-Mg alloy; carbon nanotubes; composites; mechanical properties; METAL-MATRIX COMPOSITES; STRENGTHENING MECHANISMS; AL COMPOSITES; BEHAVIOR; POWDER;

D O I：

10.1007/s11665-017-2730-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Elemental powders of Al, Cu, Mg and x wt.% CNT (x: 0-2.5) were blended and milled in the high-energy ball mill for 4 h. Milled powders of Al alloy-CNT composites were subsequently consolidated by upset forging followed by hot extrusion. Even though the particle size of milled powders of Al alloy-CNT composites decreased with the addition of CNT, there is no significant effect on crystallite size. Raman spectra indicated that the nanocrystalline structure of CNT is retained after milling. Yield and ultimate tensile strengths increased with CNT content and Al alloy-2.5 wt.% CNT exhibited an enhancement of 56 and 73%, respectively, when compared to Al alloy in solutionized condition. The improvement in mechanical properties of Al alloy-CNT composites is due to ultra-fine grain size, finer second-phase precipitates and uniform dispersion of CNT.

引用

页码：3376 / 3386

页数：11

共 40 条

[1] Processing of CNTs Reinforced Al-Based Nanocomposites Using Different Consolidation Techniques [J].