226 Characteristic improvements of sintered compacts by controlling particle size distribution of atomized ferrous alloy powders
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- NAKAGOMI Yohei
- Tokyo City Univ. Grad. School of Mechanical Engineering
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- HIDA Shogo
- Tokyo City Univ. Grad. School of Mechanical Engineering
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- MOCHIDZUKI Tomohito
- Tokyo City Univ. Dept. of Mechanical Engineering, Fac. of Engineering
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- FUJIMA Takuya
- Tokyo City Univ. Dept. of Mechanical Engineering, Fac. of Engineering
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- TAKAGI Ken-ichi
- Tokyo City Univ. Dept. of Mechanical Engineering, Fac. of Engineering
Bibliographic Information
- Other Title
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- 226 粒度分布制御によるアトマイズ鉄粉の焼結体の諸特性の改善(粉末成形とその評価(1),ものづくりにおける基礎研究と先端技術の融合)
Description
Effect of particle size distribution on the density and shrinkage of atomized ferrous alloy powder compacts were investigated by controlling particle size distribution of the two bimodal ferrous alloy powders (-25μm / 125-150μm, 25-46μm / 125-150μm). These powders were sintered at 1473K in vacuum after compacted at the pressure of 490MPa. As a result, the sintered compact of -5μm / 125-150μm bimodal powder with fine powder content of 35 mass% showed higher density and lower shrinkage ratio than those of other powder compacts. The improvement of particle packing depends strongly on the size ratio, mixing compositions of the fine to coarse powder. The density increase by the fine powder addition is considered to improve the mechanical properties of the sintered compacts without further addition of alloying elements.
Journal
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- The Proceedings of the Materials and processing conference
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The Proceedings of the Materials and processing conference 2010.18 (0), _226-1_-_226-3_, 2010
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390001205877348864
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- NII Article ID
- 110008743002
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- ISSN
- 2424287X
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed