Ti<SUB>3</SUB>Al単相中における相互拡散

• 加藤 雅彦

  工学院大学大学院工学研究科機械工学専攻

• 笹野 久興

  金属材料技術研究所

• 鈴木 敏之

  工学院大学大学院工学研究科機械工学専攻

書誌事項

タイトル別名

• Single-Phase Interdiffusion in Intermetallic Compound Ti<SUB>3</SUB>Al
• Ti3Al単相中における相互拡散
• Ti3Al タンソウ チュウ ニ オケル ソウゴ カクサン

抄録

Interdiffusion in single-phase Ti₃Al has been investigated using a vapor-solid diffusion couple in the temperature range between 1086 and 1345 K. Aluminum was diffused by a chemical transportation technique in which aluminum chloride was used as the carrier gas. The results show that the interdiffusion coefficients at temperatures above 1209 K are almost the same at both sides of stoichiometry. However, the diffusion mode below 1132 K is completely different from that above 1209 K. Although the diffusion layer is formed uniformly in the surface of the base metal above 1209 K, the new crystal grains which are obviously different from the grains in the base metal are formed in the surface of the base metal below 1132 K. As the result, aluminum diffuses along the newly formed crystal grain boundary. This means that the interdiffusion below 1132 K must be controlled by a grain boundary diffusion mechanism instead of the lattice diffusion above 1209 K.

収録刊行物

• 日本金属学会誌

  日本金属学会誌 63 (5), 656-660, 1999

  公益社団法人 日本金属学会

キーワード

• intermetallic compound
• interdiffusion
• Ti<SUB>3</SUB>Al
• vapor-solid diffusion couple
• grain boundary diffusion

詳細情報

• CRID: 1390282681467449344
• NII論文ID: 130007341376
• NII論文ID: 10002550277
• NII書誌ID: AN00187860
• DOI: 10.2320/jinstmet1952.63.5_656
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL書誌ID: 4736127
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4736127
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet1952/63/5/63_5_656/_pdf
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