Effect of Zr on Microstructure and Oxidation Behavior of α and α + α₂ Ti-Al-Nb Alloys

• Matsunaga Sae

  Shibaura Institute of Technology High Temperature Materials Design Group, National Institute for Materials Science

• Serizawa Ai

  Shibaura Institute of Technology

• Yamabe-Mitarai Yoko

  High Temperature Materials Design Group, National Institute for Materials Science

書誌事項

タイトル別名

• Effect of Zr on Microstructure and Oxidation Behavior of α and α + α₂ Ti-Al-Nb Alloys
• Effect of Zr on microstructure and oxidation behavior of alpha and alpha + alpha(2) Ti-Al-Nb alloys

抄録

To develop high-temperature Ti alloys, microstructure and oxidation behavior were investigated in Ti-(10,15)Al-2Nb-(1,2)Zr (at%) alloys. For reference, ternary Ti-15Al-2Zr alloy was also investigated. A single α phase exists in Ti-10Al-2Nb-(1, 2)Zr alloys; on the other hand, an α and α₂ two-phase was observed in Ti-15Al-2Nb-(1, 2)Zr alloys. Fine α₂ precipitates of about 10 nm were observed in the Ti-15Al alloys. The oxidation behavior of Ti-Al-Nb-Zr and Ti-Al-Zr ternary alloys was investigated to understand the effect of Zr on oxidation behavior at 1023 K. It was found that Zr improves the oxidation resistance of the α phase more effectively than Nb. TiO₂ was formed in all tested alloys. The addition of Zr drastically decreased the growth rate of TiO₂. It was also found that the addition of Nb improved adhesion of the oxide layer.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 57 (11), 1902-1907, 2016

  公益社団法人 日本金属学会

キーワード

• oxidation behavior
• α titanium
• α₂ precipitates

詳細情報

• CRID: 1390001204254237824
• NII論文ID: 130005289954
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.maw201603
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 027680886
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027680886
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/57/11/57_MAW201603/_pdf
• 本文言語コード: en
• 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