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최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- Among the several processes for making the Fe bulk bodies, the metal injection molding (MIM) process has some advantages such as easily making the small sized and complex components as well as its high mass and low cost production [4]. In this work, as a basic study on the ZrO2 dispersion strengthening of nano crystalline Fe bodies, we focused on the fabrication of Fe-ZrO2 composites using MIM process, in which the ZrO2 contents were verified (0vol. %, 5vol.%, 10vol. %). To investigate the relationship between microstructure and material properties of Fe-ZrO2 composites depend on the sintering temperature, SEM and TEM techniques were used.
- 3 is SEM micrographs showing the wear surfaces of Fe-ZrO2 composites depending on the ZrO2 contents. The wear test was carried out using the ball on disk type as following conditions; 1Kg load, 60 rpm speed and for 2hours. As a counter ball, the steel ball with 2 mm in diameter was used.
- In this work, the relationship between microstructure and mechanical properties of Fe-ZrO2 composites fabricated by MIM process was investigated depending on sintering temperature and ZrO2 content. Nano ZrO2 particles were homogeneously dispersed at grain boundary and in the Fe grains.
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