Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Porous and Porous Surfaced Ti-6Al-4V Implants Fabricated by Electro-Discharge-Sintering : (2) Hardness and Compressive Strength

전기방전소결에 의해 제조된 다공성 및 다공성 표면을 갖는 Ti-6Al-4V 임플란트 : (2) 경도 및 압축강도

  • Hyun, C. Y. (Department of Materials Engineering, Seoul National University of Technology) ;
  • Huh, J. K. (Department of Materials Engineering, Seoul National University of Technology) ;
  • Lee, W. H. (Department of Advanced Materials Engineering, Sejong University)
  • 현창용 (서울산업대학교 신소재공학과) ;
  • 허재근 (서울산업대학교 신소재공학과) ;
  • 이원희 (세종대학교 신소재공학과)
  • Published : 2005.10.01
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Abstract

Porous and porous surfaced Ti-6Al-4V implant compacts were fabricated by electro-discharge-sintering (EDS) of atomized spherical Ti-6Al-4V powders with a diameter of $100-150\;{\mu}m$, The solid core formed in the center of the compact after discharge was composed of acicular ${\alpha}+{\beta}$ Widmanstatten grains, The hardness value at the solid core was much higher than that at the particle interface or particles in the porous layer, which can be attributed to both heat treatment and work hardening effects induced from EDS, The compressive yield strength was in a range of 19 to 436 MPa which significantly depends on both input energy and capacitance, Selected porous-surfaced Ti-6Al-4V implant compacts with a solid core have much higher compressive strengths compared to the human teeth and sintered Ti dental implants.

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References

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