Mechanism of pseudoelasticity in a beta-titanium shape memory alloy with a wide working temperature range

• Project/Area Number: 15H06206
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Structural/Functional materials
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Shinohara Yuri 東京工業大学, 科学技術創成研究院, 助教 (30755864)
• Project Period (FY): 2015-08-28 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: マルテンサイト変態 / 形状記憶合金 / マルテンサイト / チタン / 構造・機能材

Outline of Final Research Achievements

In this study, anomalous temperature dependence of pseudoelasticity in a β-titanium alloy, was investigated from a standpoint of small particles of the ω phase in the matrix, and in terms of phase stability.
It was revealed that (1) the martensite was not formed by cooling at -260℃ without stress and (2) the matrix transformed to the martensite and the ω phase disappeared when exposed to stress.

Research Products

• [Journal Article] Morphology and Compatibility of Martensite Microstructure in Ti-39Ni-11Pd Shape Memory Alloy (2017)
  • Author(s): Takehiro Okamoto, Takeshi Teramoto, Yuri Shinohara, Masaki Tahara, Hideki Hosoda, Tomonari Inamura
  • Journal Title: Proceedings of MRS Meetings Volume: 印刷中
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Anisotropy of Young's Modulus in a Ti-Mo-Al-Zr Alloy with Goss Texture (2016)
  • Author(s): Y. Shinohara*, D. Narita, M. Tahara, H. Hosoda and T. Inamura
  • Journal Title: MATERIALS TRANSACTIONS Volume: 57 Issue: 12 Pages: 1998-2001
  • DOI: 10.2320/matertrans.MI201505
  • NAID: 130005284386
  • ISSN: 1345-9678, 1347-5320
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Shape Memory Behavior of Ti-Au-Cr Biomedical Alloy (2016)
  • Author(s): Hideki Hosoda, Takuya Ishigaki, Yuri Shinohara, Tomonari Inamura, Kenji Goto, Shuichi Miyazaki
  • Journal Title: The 13th World Conference on Titanium proceedings Volume: -
• [Journal Article] Effect of Annealing Temperature on Texture Formation of Ti-4Au-5Cr-8Zr Biomedical Superelastic Alloy (2015)
  • Author(s): 篠原百合，田原正樹，稲邑朋也，細田 秀樹
  • Journal Title: Journal of the Japan Institute of Metals and Materials Volume: 80 Issue: 1 Pages: 45-50
  • DOI: 10.2320/jinstmet.JB201516
  • NAID: 130005115560
  • ISSN: 0021-4876, 1880-6880, 2433-7501
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] Ti-22Nb-2Al形状記憶合金における自己調整組織のメゾスケール解析 (2017)
  • Author(s): 長内大輔, 岡本岳大, 篠原百合, 田原正樹, 細田秀樹, 稲邑朋也
  • Organizer: 2017年金属学会春期大会
  • Place of Presentation: 首都大学東京南大沢キャンパス
  • Year and Date: 2017-03-15
• [Presentation] Ti-Mo-Al-Zr合金ワイヤ材の<001>繊維集合組織に及ぼす断面減少率の影響 (2017)
  • Author(s): 松本義規, 成田大樹, 篠原百合, 細田秀樹, 稲邑朋也
  • Organizer: 2017年金属学会春期大会
  • Place of Presentation: 首都大学東京南大沢キャンパス
  • Year and Date: 2017-03-15
• [Presentation] Morphology and Compatibility of Martensite Microstructure in Ti-39Ni-11Pd Shape Memory Alloy (2016)
  • Author(s): Takehiro Okamoto, Takeshi Teramoto, Yuri Shinohara, Masaki Tahara, Hideki Hosoda, Tomonari Inamura
  • Organizer: MRS2016 Fall Meeting & Exhibit
  • Place of Presentation: Hynes Convention Center, Massachusetts
  • Year and Date: 2016-11-27
  • Int'l Joint Research
• [Presentation] 生体用 Ti-Mo-Al-Zr 合金におけるヤング率の圧延面内異方性に及ぼす集合組織の影響 (2016)
  • Author(s): 篠原百合, 成田大樹, 田原正樹, 細田秀樹, 稲邑朋也
  • Organizer: 2016年金属学会秋期大会
  • Place of Presentation: 大阪大学豊中キャンパス
  • Year and Date: 2016-09-21
• [Presentation] 種々の熱処理を施した Ti-Cr-Sn 形状記憶合金の冷間加工性と組織 (2016)
  • Author(s): 上杉広大, 篠原百合, 田原正樹, 稲邑朋也, 細田秀樹
  • Organizer: 2016年金属学会秋期大会
  • Place of Presentation: 大阪大学豊中キャンパス
  • Year and Date: 2016-09-21
• [Presentation] Ti-39Ni-11Pd 形状記憶合金におけるバリアント再配列挙動の in-situ 観察 (2016)
  • Author(s): 岡本岳大, 篠原百合, 田原正樹, 細田秀樹, 稲邑朋也
  • Organizer: 2016年金属学会秋期大会
  • Place of Presentation: 大阪大学豊中キャンパス
  • Year and Date: 2016-09-21
• [Presentation] Ti-Mo-Al-Zr生体用合金の再結晶集合組織の形成過程 (2016)
  • Author(s): 篠原 百合, 佐々木知也, 田原 正樹, 稲邑 朋也, 細田 秀樹
  • Organizer: 日本金属学会 2016年春期大会
  • Place of Presentation: 東京理科大学 金町キャンパス
  • Year and Date: 2016-03-23
• [Presentation] Goss Texture in Ti-Mo-Al-Zr biomedical shape memory alloy (2015)
  • Author(s): Tomonari Inamura, Tomoya Sasaki, Katsunori Hiramatsu, Yuri Shinohara, Masaki Tahara, Hideki Hosoda
  • Organizer: PFAM24(Processing and Fabrication of Advanced Materials - XXIV)
  • Place of Presentation: Centenary Memoryal Hall, Senriyama Canpus, Kansai University
  • Year and Date: 2015-12-18
  • Int'l Joint Research