Curious dissolution and oxidation behavior of intermetallic compounds and design for biomedical metallic materials

• Project/Area Number: 25709070
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Material processing/Microstructural control engineering
• Research Institution: Osaka University
• Principal Investigator: TSUCHIYA Hiroaki 大阪大学, 工学(系)研究科(研究院), 准教授 (50432513)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000); Fiscal Year 2014: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000); Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
• Keywords: 陽極酸化 / 金属間化合物 / 酸化物成長 / 溶解性 / 電気化学 / ポーラス / ナノチューブ

Outline of Final Research Achievements

The present work examined the curious dissolution and oxidation behavior on anodization of intermetallic compounds and the control of reactivity of intermetallic compounds. The morphology, structure and thickness of oxide layer on intermetallic compounds were different from those predicted based on their compositions. Results obtained indicated that the behavior strongly depended on the difference in anodic current originated from intermetallic compound. It was also found that the small addition of alloying element to intermetallic compound can change the reactivity of the compound drastically.

Research Products

• [Presentation] Ti-Fe合金表面への陽極酸化被膜の成長挙動 (2015)
  • Author(s): 土谷博昭、撰年晃、藤本慎司
  • Organizer: 日本金属学会2015年春期講演大会
  • Place of Presentation: 東京大学
  • Year and Date: 2015-03-18 – 2015-03-20
• [Presentation] Ti-Ni合金の基板性状が酸化物層の形態に及ぼす影響 (2014)
  • Author(s): 金旻秀、土谷博昭、藤本慎司
  • Organizer: 日本金属学会第155回講演大会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] 金属間化合物相において発現する特異な酸化物形成・成長 (2014)
  • Author(s): 土谷博昭、撰 年晃、藤本慎司
  • Organizer: 日本金属学会第155回講演大会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] Ti-Fe合金表面に形成する陽極酸化被膜の形態および成長挙動 (2014)
  • Author(s): 撰年晃、土谷博昭、藤本慎司
  • Organizer: 日本金属学会第155回講演大会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] Growth of Oxide Layers on Intermetallic Compuonds (2014)
  • Author(s): H. Tsuchiya, T. Erami, S. Fujimoto
  • Organizer: 第65回国際電気化学会
  • Place of Presentation: EPFL、ローザンヌ、スイス
  • Year and Date: 2014-08-31 – 2014-09-05
• [Presentation] Growth of Oxide Nanotube Arrays on Ti-Ni Alloy (2014)
  • Author(s): M.-S. Kim, H. Tsuchiya, S. Fujimoto
  • Organizer: 225th Meeting of The Electrochemical Society
  • Place of Presentation: Hilton, Orando
  • Year and Date: 2014-05-11 – 2014-05-16
• [Presentation] Ti-Fe合金陽極酸化被膜の成長挙動 (2014)
  • Author(s): 撰年晃、土谷博昭、藤本慎司
  • Organizer: 電気化学会
  • Place of Presentation: 関西大学