Tensile Strength and Electrical Conductivity of Carbon Nanotube Reinforced Aluminum Matrix Composites Fabricated by Powder Metallurgy Combined with Friction Stir Processing

被引：119

作者：

Liu, Z. Y. ^{[1
,2
]}

Xiao, B. L. ^{[1
]}

Wang, W. G. ^{[3
]}

Ma, Z. Y. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

[2] Dalian Univ Technol, Dalian 116024, Peoples R China

[3] Liaoning Shihua Univ, Fushun 113001, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2014年 / 30卷 / 07期

关键词：

Carbon nanotubes; Metal matrix composites; Mechanical properties; Electrical properties; Friction stir processing; NANOTUBE/ALUMINUM COMPOSITES; MECHANICAL-PROPERTIES; TECHNOLOGY; SCIENCE; CNTS;

D O I：

10.1016/j.jmst.2014.04.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A route combining powder metallurgy and subsequent friction stir processing was utilized to fabricate carbon nanotube (CNT) reinforced Al (CNT/Al) and 6061Al (CNT/6061Al) composites. Microstructural observations indicated that CNTs were uniformly dispersed in the matrix in both CNT/Al and CNT/6061Al composites. Mg and Si elements tended to segregate at CNT Al interfaces in the CNT/6061Al composite during artificial aging treatment. The tensile properties of both the Al and 6061 Al were increased by CNT incorporation. The electrical conductivity of CNT/Al was decreased by CNT addition, while CNT/6061Al exhibited an increase in electrical conductivity due to the Mg and Si segregation.

引用

页码：649 / 655

页数：7

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