High-frequency induction heated sintering of ball milled Fe-WC nanocomposites

被引:11
作者
Zakeri, M. [1 ]
Zanganeh, T. [2 ]
Najafi, A. [2 ]
机构
[1] Mat & Energy Res Ctr, Dept Ceram, Karaj, Iran
[2] Islamic Azad Univ, Saveh Branch, Dept Mat, Saveh, Iran
关键词
nanocomposites; metallic matrix composites; iron; tungsten carbide; induction heating; sintering; mechanical properties; METAL-MATRIX COMPOSITES; PARTICLE DISTRIBUTION; MECHANICAL-PROPERTIES; THERMAL-CONDUCTIVITY; HARD MATERIALS; MICROSTRUCTURE; CONSOLIDATION; TITANIUM; CARBIDE; ZONE;
D O I
10.1007/s12613-013-0785-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Fe-WC nanocomposites were successfully fabricated by high-frequency induction heated sintering of ball milled nanostructure powders. The ball milled powders were characterized by X-ray diffraction. Density measurements by the Archimedes method show that all sintered samples have the relative density higher than 95%. Studies on the effects of WC content, milling speed, and milling time indicate that a higher milling speed and a more WC content lead to the improvement of mechanical properties. There is a very good distribution of WC particles in the Fe matrix at the milling speed of 650 r/min. For the sintered sample 20-5-650 (20wt% WC, milling time of 5 h, and milled speed of 650 r/min), the maximum Brinell hardness and yield stress are obtained to be 3.25 GPa and 858 MPa, respectively. All sintered samples have brittle fracture during compression test except the sample 20-5-650.
引用
收藏
页码:693 / 699
页数:7
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