Structure and wear-resistance of an Fe-VC surface composite produced in situ

Correlation of microstructure with hardness and wear resistance of VC/steel surface-alloyed materials fabricated by high-energy electron-beam irradiation

“…[12,13] Upon electronalloyed materials reinforced with VC include coating methbeam irradiation of the metal surface, where ceramic powods using laser evaporation [3,4] and ion implantation, [5] surders are evenly deposited, the material surface and ceramic face alloying methods using laser beam, [6,7] and in-situ powders are either partially or completely melted, and alloying methods. [8] However, the coated materials have poor ceramic elements are dispersed into the metal. In the melted bonding strength between coated layer and substrate, while layer, carbides, borides, and nitrides are precipitated during the surface-alloyed ones using laser beam have shortcomings solidification, thereby fabricating ceramic/metal surfaceof thin surface-hardened layer and obvious overlapping phealloyed materials or surface composites.…”

The Effect of Fe Addition on Fragmentation Phenomena, Macrostructure, Microstructure, and Hardness of TiC-Fe Local Reinforcements Fabricated In Situ in Steel Casting

“…Some limitations of this method are the long heat-treatment time and relatively small layer thickness (which is 148 lm after 8 hours of annealing at a temperature of 1423 K). The essence of the second method is the placement of green compacts containing mixtures of TiC or TiC and TiB 2 reactants undergoing the SHS reaction [9][10][11][12][13][14][15][16][17][18][19][20][21] in a mold cavity. [5][6][7][8][9][10][11][12][13][14][15] Similar to the previous method, the liquid alloy poured into the mold cavity activates the SHS reactions, but due to the self-sustaining reaction occurring in the whole compact, it is possible to fabricate an LR in a wide range of dimensions.…”

Kinetics of niobium carbide reinforced composite coating produced in situ

“…In recent decades, hard carbide and nitride coatings of transition metal elements have proven to be highly effective materials for improving the wear resistance of dies and machine components. These coatings are fabricated by surface modification methods, such as laser treatment [3], plasma jet cladding [4], chemical vapor deposition [5], physical vapor deposition [6], thermo-reactive deposition (TRD) [7], and in situ synthesis (ISS) techniques [8]. However, while some of these techniques may achieve good results, distinct disadvantages, such as high costs, complex equipment, operational difficulties, or limitation of the coating thickness (d) [2,9], have also been observed; these disadvantages greatly restrict the wider industrial application of these coatings.…”