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

• Published in: International journal of minerals, metallurgy and materials metallurgy and materials, 2013-07, Vol.20 (7), p.693-699
• Main Authors: Zakeri, M., Zanganeh, T., Najafi, A.
• Format: Article
• Language: English
• Subjects: Ball milling; Brinell hardness; Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Composites; Corrosion and Coatings; Density; Diffraction; Glass; Iron; Materials Science; Mechanical properties; Metallic Materials; Nanocomposites; Natural Materials; Sintering; Sintering (powder metallurgy); Specific gravity; Surfaces and Interfaces; Thin Films; Tribology; X-ray diffraction; X-射线衍射; Yield stress; 相对密度; 研磨球; 研磨速度; 粉末烧结; 纳米复合材料; 阿基米德法; 高频感应加热
• ISSN: 1674-4799; 1869-103X
• DOI: 10.1007/s12613-013-0785-5

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/rain. 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.