Realization of 4D Materials Science via Advanced Synchrotron Radiation Nanotomography

通过先进同步辐射纳米断层扫描实现 4D 材料科学

• 批准号: 17360340
• 负责人: TODA Hiroyuki
• 金额: $ 3.76万
• 依托单位: Toyohashi University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360340/
• 关键词: Synchrotron radiation; Tomography; In-situ observation; 3D observation; Material strength; Fracture; Strain measurement; Visualization; 三次元開発

3-D visualization of microstructures inside bulk materials at sub-micron level resolutions and the in-situ observation of material tests have been realized in our trials by utilizing ultra-high resolution synchrotron microtomography since 2001. In the present project, those techniques have been developed remarkably. The developed visualization techniques realize "4-D(i.e. 3D + time scale) materials science" in the wide research fields of the materials science through high-quality, high-resolution and information-rich imaging of 3D micro- and nanostructures as well as their advanced analyses. Substantial techniques developed are as follows ;1) The development of visualization techniques for nanostructures which are well below the present resolution of the synchrotron X-ray CT2) 3-D high-density mapping(- several ten thousand point level) of internal local mechanical quantities via tracking microstructural features under external disturbance3) Specialized imaging technique (algorithms) b … More y which high-resolution imaging for local areas inside large specimensThe developed technique might enable dynamic and effective approach to complex phenomena and microstructural optimization through 3-D observation of microstructures inside bulk materials. It might also provide new and advanced knowledge which is well beyond the traditional science and engineering or the research and development processes based on the conventional 2-D observation. Excepting classical approaches such as the serial sectioning, the developed technique is a unique one which can enable these matters. We can expect revolutions in efficiency and quality in research and development over a wide research field in the materials science. Actually, by combining the procedures developed in this research, state-of-the-art grain boundary tracking technique has been realized. It enables to visualized 3-D and 4-D change in grain boundary shape during deformation together with strain visualization at grain boundaries and within grains. It can be expected that significant academic progress is achieved by utilizing a series of the new and advanced techniques developed. Less

自2001年以来，通过利用超高分辨率同步微图像，在我们的试验中实现了次数材料内部微型材料内部微观结构的3-D可视化以及对材料测试的原位观察。开发的可视化技术通过高质量的3D微型和纳米结构的高质量，高分辨率和信息丰富的成像及其先进分析，实现了材料科学的广泛研究领域的“ 4-D（3D +时间尺度）材料科学”。所开发的实质技术如下； 1）纳米结构的可视化技术的开发，该纳米结构远低于同步器X射线CT2）3-D高密度映射（ - 数千次局部机械量）的3-D高密度映射（几个数千点），通过在外部扰动下跟踪微观结构的局部内部图表3）开发的技术可以通过3-D观察大量材料内的微观结构来实现复杂现象和微观结构优化的动态和有效方法。它还可能提供新的和先进的知识，这远远超出了基于传统的2-D观察的传统科学和工程或研发过程。除了诸如串行分区之类的经典方法外，开发的技术是一种可以实现这些问题的独特技术。我们可以预期，材料科学领域广泛的研究领域的研发效率和质量方面的革命。实际上，通过结合本研究中开发的程序，已经实现了最先进的晶粒边界跟踪技术。它可以在变形过程中可视化3-D和4-D变化，以及在晶界和晶粒内的应变可视化。可以预期，通过利用一系列新的和先进的技术，可以实现重大的学术进步。较少的

项目成果

3D Characterization of Fatigue Crack Propagation in a Cast Al Alloy using High Resolution Synchrotron Microtomography

使用高分辨率同步加速器显微断层扫描技术对铸造铝合金中的疲劳裂纹扩展进行 3D 表征

• 发表时间: 2006
• 作者: M.;Matsuda;M.;Yamashita;K.;Hirayama;M.;Nishida;T.;Hara;H. Zhang
• 通讯作者: H. Zhang

3-D strain measurement via tracking features in high-resolution X-ray CT image

通过高分辨率 X 射线 CT 图像中的跟踪功能进行 3D 应变测量

• 发表时间: 2006
• 作者: Yuji Hiruma;Kazushige Yoshii;Hajime Nagata;Tadashi Takenaka;M. kobayashi
• 通讯作者: M. kobayashi

Preferential penetration path of gallium into grain boundary in practical aluminium alloy

实用铝合金中镓向晶界的优先渗透路径

• 发表时间: 2006
• 期刊: Philosophical Magazine 86・28
• 作者: M.Kobayashi;H.Toda;K.Uesugi;T.Ohgaki;T.Kobayashi;Y.Takayama;B.-G.Ahn
• 通讯作者: B.-G.Ahn

アルミニウム合金中のミクロポアが延性破壊に及ぼす影響

铝合金中微孔对韧性断裂的影响

• 发表时间: 2007
• 作者: Y.;Sutou;K.;Yamauchi;T.;Takagi;T.;Maeshima;M.;Nishida;日高達真
• 通讯作者: 日高達真

In-situ high-resolution X-ray CT observation of compressive and damage behaviour of aluminium foams by local tomography technique

局部断层扫描技术原位高分辨率X射线CT观察泡沫铝的压缩和损伤行为

• 发表时间: 2006
• 期刊: Advanced Engineering Materials (印刷中)
• 作者: T.Ohgaki;H.Toda;M.Kobayashi;K.Uesugi;T.Kobayashi;M.Niinomi;T.Akahori;K.Makii;Y.Aruga
• 通讯作者: Y.Aruga