Enhanced Mechanical, Tribological, and Thermal Properties of Fe3Al Composites with Carbon Nanotubes

被引：2

作者：

Yao, Yuan ^{[1
]}

Liu, Cansen ^{[1
]}

Jie, Xiaohua ^{[1
]}

Mai, Yongjin ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2019年 / 28卷 / 05期

关键词：

carbon nanotubes; Fe3Al-based composite; microstructure; wear; METAL-MATRIX COMPOSITES; SLIDING WEAR BEHAVIOR; IRON ALUMINIDE; MICROSTRUCTURE; FABRICATION; CO;

D O I：

10.1007/s11665-019-04023-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, Fe3Al-based composites reinforced with carbon nanotubes were fabricated by a hot-press sintering process under various sintering pressures. The effects of sintering pressure and additives (alumina and lanthanum) on both the physical and the mechanical properties were systematically investigated. Results showed that with the sintering pressure of 15 MPa and incorporation of carbon nanotubes (CNTs), the microhardness of Fe3Al composite exhibited a peak value at 1038.1HV, which was similar to 60% higher than those without the addition of carbon nanotubes (644.9 HV). Also, both the compressive yield strength and the thermal conductivity of Fe3Al composite were also significantly improved. Results of wear test showed the Fe3Al composite exhibited a low wearing rate (10(-6)-10(-5) order of magnitude) and a friction coefficient (0.53-0.67).

引用

页码：2826 / 2833

页数：8

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