Substantiative research on the repeating contact model for the formation mechanism of granular region in subsurface fracture

地下裂缝颗粒区形成机制重复接触模型的实证研究

• 批准号: 19H02034
• 负责人: OGUMA Hiroyuki
• 金额: $ 11.4万
• 依托单位: National Institute for Materials Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2019
• 资助国家: 日本
• 起止时间: 2019-04-01 至 2023-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-19H02034/
• 关键词: 超高サイクル疲労; 内部起点型破壊; 真空環境; 組織微細化; 凝着; 粒状領域; 高強度金属材料; 放射光X線nano-CT

项目成果

Initiation and propagation process of small fatigue crack in beta titanium alloy via multiscale synchrotron radiation computed tomography

多尺度同步辐射计算机断层扫描β钛合金细小疲劳裂纹的萌生和扩展过程

• 发表时间: 2021
• 作者: Gaoge Xue;Takashi Nakamura;Nao Fujimura;Hiroyuki Oguma;Akihisa Takeuchi;Masayuki Uesugi;Kentaro Uesugi
• 通讯作者: Kentaro Uesugi

A fractographic study of the initiation and propagation progress of internal fatigue cracks in Ti-22V-4Al with different alpha-phase precipitation

不同α相析出Ti-22V-4Al内部疲劳裂纹萌生和扩展过程的断口研究

• 发表时间: 2021
• 作者: Gaoge Xue;Takashi Nakamura1;Nao Fujimura;Kosuke Takahashi and Hiroyuki Oguma
• 通讯作者: Kosuke Takahashi and Hiroyuki Oguma

Formation mechanism of the distinctive granular fracture surface in subsurface fracture of Ti6Al4V alloy

• DOI: 10.1016/j.mtla.2021.101312
• 发表时间: 2022-01
• 期刊: Materialia
• 影响因子: 3.4
• 作者: H. Oguma

Nondestructive observation of internal fatigue crack initiation in Ti-6Al-4V via synchrotron radiation X-ray CT

同步辐射X射线CT无损观察Ti-6Al-4V内部疲劳裂纹萌生

• 发表时间: 2021
• 作者: Fumiyoshi Yoshinaka;Takashi NAKAMURA;Hiroyuki OGUMA;Nao FUJIMURA;Akihisa TAKEUCHI;Masayuki UESUGI;Kentaro UESUGI
• 通讯作者: Kentaro UESUGI

Initiation and propagation of small fatigue crack in beta titanium alloy observed through synchrotron radiation multiscale computed tomography

同步辐射多尺度计算机断层扫描观察β钛合金细小疲劳裂纹的萌生和扩展

• DOI: 10.1016/j.engfracmech.2022.108308
• 发表时间: 2022
• 期刊: Engineering Fracture Mechanics
• 影响因子: 5.4
• 作者: Xue Gaoge;Nakamura Takashi;Fujimura Nao;Takahashi Kosuke;Oguma Hiroyuki;Takeuchi Akihisa;Uesugi Masayuki;Uesugi Kentaro
• 通讯作者: Uesugi Kentaro