Tribological properties of TiC-Fe coatings obtained by plasma spraying reactive powders

Dallaire, S.; Cliche, G.

doi:10.1007/bf02647422

Cited by 12 publications

(1 citation statement)

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“…Due to porosity as well as weak interfacial bonding between TiC particles and nickel matrix, Ni-30TiC sintered at 900 • C composites exhibited very poor compressive behavior. [31] studied the tribological properties of TiC-Fe coating and found that the COF value of the layer remains low until 500 m sliding distance; after that, it increases drastically due to the porosity inside the matrix causes the surface broke down. The oscillating coefficient of friction on the graph for metal matrix composite is more than pure nickel, and these wear phenomena are called the slip-line field wear mechanism [32].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Mechanical and Tribological Behavior of Mechanically Alloyed Ni-TiC Composites Processed via Spark Plasma Sintering

et al. 2020

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Titanium carbide (TiC) reinforced nickel (Ni) matrix composites were processed via mechanical alloying (MA) followed by spark plasma sintering (SPS) process. Mechanical alloying has gained special attention as a powerful non-equilibrium process for fabricating amorphous and nanocrystalline materials, whereas spark plasma sintering (SPS) is a unique technique for processing dense and near net shape bulk alloys with homogenous microstructure. TiC reinforcement varied from 5 to 50 wt.% into nickel matrix to investigate its effect on the microstructure and mechanical behavior of Ni-TiC composites. All Ni-TiC composites powder was mechanically alloyed using planetary high energy ball mill with 400 rpm and ball to powder ratio (BPR) 15:1 for 24 h. Bulk Ni-TiC composites were then sintered via SPS process at 50 MPa pressure and 900–1200 °C temperature. All Ni-TiC composites exhibited higher microhardness and compressive strength than pure nickel due to the presence of homogeneously distributed TiC particles within the nickel matrix, matrix grain refinement, and excellent interfacial bonding between nickel and TiC reinforcement. There is an increase in Ni-TiC composites microhardness with an increase in TiC reinforcement from 5 to 50 wt.%, and it reaches the maximum value of 900 HV for Ni-50TiC composites.

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Section: Mechanical Propertiesmentioning

confidence: 99%