Reactive thermal spraying of TiC-Fe composite coating by using asphalt as carbonaceous precursor

Reactive detonation spraying of in situ synthesised TiC reinforced Fe36Ni based composite coatings via sucrose as carbonaceous precursor

“…The reinforcing phase reacted in situ may be more compatible with the matrix and the phase boundaries may be cleaner as compared with other composites produced conventionally. 20,28 The TiC particles in the matrix would increase the toughness by limiting crack propagation. 34 In addition, because of a number of ultrafine and thermally stable TiC particles uniformly distributed on the matrix of Fe-36Ni alloy, the yield strength is increased through dispersion strengthening and grain size mechanisms.…”

“…The carbon prepared by the pyrolysis of the precursor is a reactive constituent as well as a binder in the compound powders. 28 Reactive detonation spraying (RDS) is a novel technology combining the in situ reactive synthesis with detonation spraying. The ceramic phases, formed by an in situ reaction directly, are fine, spherical and uniformly dispersed and have a clean interfacial structure with the metal matrix, which sharply increases the wear resisting property of the coating.…”

“…At first, reactive mixture powders for reactive spraying are prepared by mechanical blending of raw materials 22,23 or adding binder and plasticiser into raw materials to bind these raw materials. 21,[24][25][26][27] Owing to the very low bonding strength among mixture powders prepared by the first means, 28 the reactive constituent powder particles are liable to incompletely react with each other during spraying, so that some reactive constituent particles remain in coatings, for example, residuals of Ti and FeTi can still be found. 22,23 Although the mixture powders were bonded in the second means, it was found that graphite was lost during spraying because of the low bonding strength between graphite and other powders.…”

HVOF Sprayed Fe-Based Wear-Resistant Coatings with Carbide Reinforcement, Synthesized In Situ and by Mechanically Activated Synthesis

“…Alternatively, the in situ synthesis of the carbide phase [11] during the deposition of the coating is considered. Multiple studies reported the successful in situ synthesis of TiC in coatings, using induction cladding [12], laser remelting [13], as well as various welding [14][15][16] and thermal spray [17,18] methods. The authors of this study [19] successfully achieved the in situ formation of TiC reinforcement inside of iron matrix using the selective laser melting technique.…”

Electrodeposition Kinetics of Ni/Nano-Y2O3 Composite Coatings

“…Recently, metal matrix composites reinforced with solid particles have been widely applied in many engineering fields owing to their enhanced physical and chemical properties (e.g., high level of hardness, wear and corrosion resistance, and thermal stability, among others) [1][2][3]. Generally, metallic composites can be fabricated through diverse technologies, such as hot pressing [4], casting [5], thermal spraying [6], cold spraying [7], powder metallurgy [8], and electrochemical deposition [9]. Among these techniques, electrodeposition has attracted much attention due to its lower cost and ability to operate at an ambient temperature and under normal pressure.…”