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

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Effect of the Size and Carbides Dispersion in the Sintering and Hardness of Samples of Stainless Steel Reinforced with NbC And TaC

  • Da Silva Soares, Sergio R. (Departamento de Fisica Teorica e Experimental, Universidade Federal do Rio Grande do Norte -UFRN Campus Universitario) ;
  • Gomes, Uilame Umbelino (Departamento de Fisica Teorica e Experimental, Universidade Federal do Rio Grande do Norte -UFRN Campus Universitario) ;
  • Furukava, Marciano (Departamento de Fisica Teorica e Experimental, Universidade Federal do Rio Grande do Norte -UFRN Campus Universitario) ;
  • De Souza, Carlson Pereira (Departamento de Engenharia Quimica, Universidade Federal do Rio Grande do Norte -UFRN Campus Universitario)
  • Published : 2006.09.24
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Abstract

The present study investigates the behavior of the sintering and hardness of stainless steel samples reinforced with NbC and TaC. Matrixes of pure stainless steel were compacted with addition of up to 3% wt NbC or TaC in a cylindrical die of steel $(\phi\;=\;5,0\;mm)$ at 700 MPa and sintered in an electrical resistance furnace under argon atmosphere. The sintered samples were characterized by density and hardness measurement, optical microscopy and scanning electron microscopy (SEM). The preliminary results show that the size and distribution of carbides influence in the sintering and hardness of the sintered samples.

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