アトマイズ鋳鉄粗粉末のパルス通電加圧焼結の初期過程におけるネック成長

• 南口 誠

  東京工業大学工学部金属工学科

• 丸山 俊夫

  東京工業大学工学部金属工学科

• 冨野 寿和

  香川県工業技術センター

書誌事項

タイトル別名

• Neck Growth on Initial Stage of Pulse Current Pressure Sintering for Coarse Atomized Powder Made of Cast-Iron
• アトマイズ チュウテツソフンマツ ノ パルス ツウデン カアツ ショウケツ ノ ショキ カテイ ニ オケル ネック セイチョウ

抄録

Sample temperature and neck growth were investigated on pulse-current pressure sintering of coarse cast-iron powder (diameter: 200 μm) produced by a gas atomizing technique. At 873 K of die temperature, the temperatures of sample inside and its surface were 950 K and 910 K, respectively. Microstructure observation of the sintered cast-iron revealed that there were no melting and remarkable deformation around the grain interface. Neck growth was governed by plastic deformation during the initial stage of the process. A model calculation of neck growth by assuming the plastic deformation of particles is in good agreement with the experimental results. The results indicate that the initial stage on pulse current pressure sintering is similar to conventional hot-press sintering for coarse cast-iron powder.

収録刊行物

• 日本金属学会誌

  日本金属学会誌 63 (7), 917-923, 1999

  公益社団法人 日本金属学会

キーワード

• pulse-current pressure sintering
• spark plasma sintering (SPS)
• neck growth
• plastic deformation
• cast-iron powder
• samle temperature

詳細情報

• CRID: 1390001206490383104
• NII論文ID: 10005345205
• NII論文ID: 10007814836
• NII書誌ID: AN00187860
• DOI: 10.2320/jinstmet1952.63.7_917
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL書誌ID: 4811185
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4811185
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet1952/63/7/63_7_917/_pdf
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