ＴｉＣ分散Ｍｏ焼結合金における微細結晶粒組織の形成と結晶粒成長

• 瀧田 朋広

  東京タングステン(株)

• 五十嵐 廉

  東京タングステン(株)

• 土肥 義治

  富山県工業技術センター

書誌事項

タイトル別名

• Preparation and Grain Growth of Fine-Grained Sintered Molybdenum Alloy Dispersed with Titanium Carbide.
• TiC ブンサン Mo ショウケツ ゴウキン ニ オケル ビサイ ケッショウリ

抄録

Fine-grained sintered molybdenum alloy dispersed with 1.6mol% (1.0mass%) TiC was prepared by mechanical alloying and hot isostatic pressing. The mixture of fine molybdenum powder with grains measuring 20nm in diameter and TiC-particles, prepared by mechanical alloying, was sintered at 1570K for 10.8ks under 147MPa. Density of the sintered alloy was 10.1Mg/m³ (99.5% relative density); grain size of the molybdenum and the particle size of TiC in the sintered alloy were 0.4μm and below 0.2μm, respectively.<BR>Grain growth of the alloy was measured to estimate stability of the fine-grained microstructure at high temperatures. Fine grains measuring 2μm in diameter were remained after heating at 207OK for 3.6ks. (Ti, Mo)C_1-x was formed at the interface of the molybdenum and TiC-particles, and grains of molybdenum grew to 4μm in diameter after heating at 2270K for 3.6ks. After heating at 247OK, many voids and traces of liquid phase were observed at the grain boundary.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 45 (10), 969-973, 1998

  一般社団法人 粉体粉末冶金協会

キーワード

• molybdenum
• titanium carbide
• fine-grained structure
• mechanical alloying
• hot isostatic pressing
• grain growth

詳細情報

• CRID: 1390001206309189888
• NII論文ID: 10002053023
• NII論文ID: 10003381847
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.45.969
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 4585464
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4585464
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可