Wear-resistant P/M titanium carbide - iron coatings

  • Narva V
  • Kalinichenko V
  • Beilina L
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Abstract

In thw work described the electric contact sinter-bonding process was employed for applying, to type 45 steel, TiC-iron composite coatings exhibiting high hardness (up to 550 HV), low porosity (0.45%), and good adhesion to their bases (up to 12 · 107 N/m2). The abrasive wear resistance of the materials of these coatings proved to be twice as high as that of quenched type 45 steel. The electric contact s inter-bonding method of application of coatings enables uncomminuted coarse powders to be employed and ensures high rates of coating application (the optimum sinter-bonding time is 0.16–0.18 sec, the weight rate of coating application being 5 kg/h). Coatings applied by the electric contact sinter-bonding method can be employed for building up worn surfaces of components of, e.g., agricultural machines.

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Authors

  • V. K. Narva

  • V. M. Kalinichenko

  • L. M. Beilina

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