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Fabrication of Injection Molded Fe-50%Ni Sintered Bodies

사출성형된 Fe-50%Ni 소결체의 제조

  • Kim Ki-Hyun (Division of Advanced Materials Engineering, Kongju National University) ;
  • Yoon Hyeong-Chul (Division of Advanced Materials Engineering, Kongju National University) ;
  • Choi Chul-Jin (Korea Insitute of Machinery and Materials) ;
  • Lee Byong-Taek (Division of Advanced Materials Engineering, Kongju National University)
  • 김기현 (공주대학교 나노소재응용공학부) ;
  • 윤형철 (공주대학교 나노소재응용공학부) ;
  • 최철진 (한국기계연구원 나노분말재료그룹) ;
  • 이병택 (공주대학교 나노소재응용공학부)
  • Published : 2004.12.01

Abstract

The Fe-Ni compact bodies were fabricated using Fe-Ni mixed powders with 50 nm in diameter by injection molding process. The relationship between microstructure and material properties was characterized with respect to the volume ratio of powder/binder and sintering temperature with SEM and TEM. In the compact body having the volume percent ratio of 45(Fe-Ni) : 55(binder), which was sintered at $900^{\circ}C$ the values of relative density and hardness were low about 97.7% and 277.1 Hv, respectively. Using the composition of 50(Fe Ni) : 50(binder) and sintered at $900^{\circ}C$, the values of relative density and hardness were 98.5%, 294.4 Hv, respec-tively. The grain size of sintered bodies strongly depended on the sintering temperature. In both samples sintered at $600^{\circ}C$ and $900^{\circ}C$, the average grain sizes were about 150 nm and 500 nm in diameter, respectively.

Keywords

References

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Cited by

  1. Microstructure and High Temperature Oxidation Behaviors of Fe-Ni Alloys by Spark Plasma Sintering vol.24, pp.1, 2017, https://doi.org/10.4150/KPMI.2017.24.1.53