Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Mechanical and Microestructural Properties of Titanium Matrix Composites Reinforced by TiN Particles

  • Romero, F. (Mechanical and Materials Department. Politechnical University of Valencia C/ Camino de Vera S/N) ;
  • Amigo, V. (Mechanical and Materials Department. Politechnical University of Valencia C/ Camino de Vera S/N) ;
  • Salvador, M.D. (Mechanical and Materials Department. Politechnical University of Valencia C/ Camino de Vera S/N) ;
  • Martinez, E. (Mechanical and Materials Department. Politechnical University of Valencia C/ Camino de Vera S/N)
  • Published : 2006.09.24
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Abstract

Particulate reinforced titanium composites were produced by PM rout. Differents volumetric percentages of TiN reinforcements were used, 5,10,15 vol%. Samples were uniaxial pressed and vacuum sintered at differents temperatures between $1200-1300^{\circ}C$. Density, porosity, shrinkage, mechanical properties and microstructure were studied. Elastic properties and strength resistance were analysed by flexural strength and tension tests, and after the test, fractured samples were analysed too, obtaining a correlation between the fracture, interparticulated or intraparticulated, and the reinforcement addition.. Hardness and microhardness test were applied too, in order to complete the study about mechanical properties. In order to study wear resistance pin-on-disc test were used. In addition, the temperature influence, the reactivity between matrix and reinforcement, and the microstructures developed were observed by optical and electron microscopy.

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