Ｔｉ‐Ｎｉ系アモルファス合金粉末のＨＩＰ焼結

• 伊藤 滋

  東京理科大学理工学部工業化学科

• 細越 隆司

  東京理科大学理工学部工業化学科

• 明石 和夫

  東京理科大学理工学部工業化学科

書誌事項

タイトル別名

• HIP Sintering of Ti-Ni Amorphous Alloy Powders.
• Ti Niケイ アモルファス ゴウキン フンマツ ノ HIP ショウケツ

抄録

Amorphous Ti50-Ni50 powders prepared by MA were sintered by HIP above 700°C to obtain the compacts with non-equilibrium phases.The x-ray diffraction peaks of the specimen obtained at 700°C were relatively weak and broad.On the other hand, the specimen obtained at 900°C consisted of TiNi, Ti₂Ni and Ni₃Ti with relatively sharp peaks in the x-ray diffraction pattem.The compacts obtained may be in the non-equilibrium states leading to the equilibrium phase of TiNi.The most amorphous like compact was obtained at 700°C for lhr under 200MPa and its density was 6.2g/cm³ corresponding to 94% of the density obtained at 900°C.The grains in the compacts obtained at 700-800°C maintained the shape formed by MA, while the micro structure obtained at 900°C was largely different.The Vickers hardness of the compact obtained at 700°C was 900Hv compared with 800Hv at 900°C.The electric resistivity of the compact obtained at 700°C was 2 times higher than that of TiNi alloy.Anodic polarization curves of the compacts indicated high corrosion resistance in the compact obtained at low Hipping temperature.It was concluded that the high density compact of Ti-Ni was obtained keeping some properties of amorphous metal using low temperature HIP of amorphous Ti-Ni powders.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 42 (4), 496-500, 1995

  一般社団法人 粉体粉末冶金協会

キーワード

• HIP
• MA
• Ti-Ni system
• non-equilibrium

詳細情報

• CRID: 1390282681286282240
• NII論文ID: 10001726892
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.42.496
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 3616528
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3616528
• 本文言語コード: ja
• データソース種別:
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  • NDL
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  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可