During solidification of metallic materials, heterogeneous nucleation occurs on substrates, either endogenous or exogenous. The potency the substrates for is mainly dependent upon atomic arrangements substrate surface, which are affected by lattice misfit between and nucleated solid, surface roughness at scale, chemical interaction melt. Extensive examinations metal/substrate (M/S) interfaces s...

This work studies the process feasibility of milling a metal-matrix composite based on Inconel 625 with added NiTi-TiB2 fabricated by direct laser deposition. The is intended for manufacturing turbine blades and it has strength characteristics par those 625. However, addition TiB2 improved its heat wear resistance. material new, machinability not been studied. new was milled end mill cutters, r...

The equation of state (EOS) of titanium boride, TiB2, was investigated by in situ X-ray diffraction in a diamond anvil cell and multianvil high-pressure apparatus. The pressure-volume-temperature (P-V-T) data were collected at up to 111 GPa and room temperature for the diamond-anvil cell experiments and at up to 15 GPa and 1300 K for the multianvil experiments. No phase transition was observed ...

Fatigue and fracture mechanisms have been studied in a steel-based metal matrix composite (MMC), comprising a 316L austenitic matrix reinforced with 25 wt% particulate titanium diboride (TiB2). The fracture toughness was determined in the as-HIPped condition as being slightly below 30 MPa√m. Fatigue crack growth rates have been determined, and corrected for the effects of crack closure. The fra...