The FeAl–30%TiC nanocomposite produced by mechanical alloying and hot-pressing consolidation

摘要: Abstract Intermetallic matrix composites reinforced with particles such as TiC have attracted a great deal of attention over the past few years. In present study, mechanical alloying process followed by hot-pressing consolidation was used to produce FeAl–30%TiC nanocomposite. Since reduction grain size nanometer scale improves properties materials, this composite may be attractive for structural applications. An elemental powder mixture Al35Fe35Ti15C15 (in at.%) milled in high-energy ball mill. The phase transformations during milling were studied use X-ray diffraction (XRD). Transmission electron microscopy and differential scanning calorimetry examining microstructure thermal stability product. results obtained show that performed work leads formation bcc identified Fe(Al) solid solution fcc TiC, both phases are nanocrystalline. Subsequently, sintered at 750 °C under pressure 4 GPa. XRD investigations consolidated pellet revealed after sintering, material remained nanocrystalline there no changes, except ordering Fe(Al), i.e. FeAl intermetallic compound, sintering process. average hardness nanocomposite is 1287 HV 0.2 (12.6 GPa) its density 98% theoretical value.