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- Fe-Cr-Mo 합금 분말의 성형 및 소결특성에 미치는 입도분포 영향
- 김기봉, 양상선, 김용진, 박용호
- Influence of Particle Size Distribution on Green and Sintered Properties of Fe-Cr-Mo Prealloy Powder
- Ki-Bong Kim, Sangsun Yang, Yong-Jin Kim, Yong-Ho Park
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Journal of Korean Powder Metallurgy Institute 2013;20(1):7-12
DOI: https://doi.org/10.4150/KPMI.2013.20.1.007
1한국기계연구원 부설 재료연구소
2한국기계연구원 부설 재료연구소
3한국기계연구원 부설 재료연구소
4부산대학교 재료공학과
1Korea Institute of Materials Science (KIMS)
2Korea Institute of Materials Science (KIMS)
3Korea Institute of Materials Science (KIMS)
4Department of Materials Science and Engineering, Pusan National University
2한국기계연구원 부설 재료연구소
3한국기계연구원 부설 재료연구소
4부산대학교 재료공학과
1Korea Institute of Materials Science (KIMS)
2Korea Institute of Materials Science (KIMS)
3Korea Institute of Materials Science (KIMS)
4Department of Materials Science and Engineering, Pusan National University
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Abstract
The effect of particle size distribution on green and sintered properties of Fe-Cr-Mo prealloy powder was investigated in this study. For the study, prealloyed Fe-Cr-Mo powders with different particle sizes were mixed as various ratios and cold compacted at various pressure and sintered at 1250°C for 30 min, 90%N_2+10%H_2 atmosphere in the continuous sintering furnace. The results shows that the powders with large particle size distribution have high compressibility and low ejection force. However the green strength are much less than those with small particle size distribution. Tensile prperties of the sintered specimes with large particles size also have high strength and elongation.
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