Effect of nanocrystalline TiC powder addition on the hardness and wear resistance of cast iron

Decorated Dislocations with Fine Precipitates Observed by FIB-SEM Slice-sectioning Tomography

“…Nb is one of the best candidates among these microalloying elements, because both solute Nb atoms and NbC precipitates have a large effect on the microstructure and mechanical properties, from a combination of strengthening mechanisms including solid solution, grain size, dislocation, and precipitation hardening. [4][5][6][7] For example, grains can be refined which increases the grain coarsening temperature 8,9) and retards the recrystallization by pinning effect of NbC or solute drag effect of Nb. [10][11][12] The refinement of grain sizes also leads to the increase of the yield strength and tensile strength.…”

Characterization of the MC Carbides and Mechanical Properties in a TiC Particles-Strengthened Cobalt-Based Alloy through HIP, Solid-Solution and Aging Treatments

“…1) Their design is aimed primarily at improving elevated temperature strength by use of solid-solution and carbidestrengthening mechanisms. 2,3) In the cobalt-based alloys, chromium improves oxidation and heat-corrosion resistance; producing strengthening by the formation of M 7 C and M 23 C 6 carbides. Molybdenum and tungsten are solid-solution strengtheners; producing strengthening by formation of inter-metallic compound of Co 3 M and MC carbides; and the formation of M 6 C carbide.…”

“…Molybdenum and tungsten are solid-solution strengtheners; producing strengthening by formation of inter-metallic compound of Co 3 M and MC carbides; and the formation of M 6 C carbide. Carbon produces strengthening by the formation of MC, M 7 C 3 , M 23 C 6 and possibly M 6 C carbides. 4) Titanium carbide (TiC) is extremely hard carbide, which has special advantages in comparison with other carbides.…”

“…5) There are many materials that can be used in the iron or cobalt matrix composites, but TiC is more favorable because of the advantages such as high hardness, good wet-ability and satisfactory resistance against thermal shocks. 5,6) Metal matrix composites (MMCs) are knows to be very hard and to exhibit exceptional wear resistance. In this respect, several investigators used TiC as reinforcing medium in ferrous metal in order to enhance these properties.…”

Microstructure and Mechanical Properties of 440C–TiC Composite Steels Produced through Powder Metallurgy Processing

“…[4][5][6] Metal matrix composites are known to exhibit exceptional wear resistance; therefore, several investigators used titanium carbide (TiC) as a reinforcing medium in a ferrous metal matrix in order to enhance this property. [7][8][9][10] TiC has proved its suitability in Fe or Fe base alloys due its high hardness, low density and chemical stability with Fe-based alloys. Pagounis et al used a similar type of specimen for impact toughness measurements of tool steels, which were reinforced with TiC particles and synthesized by powder metallurgical techniques.…”