scholarly journals Observation of Deformed GP Zone on the Shear Bands and Quantitative Analysis of Relative Strain by Three-dimensional Electron Tomography

Materia Japan ◽  
2007 ◽  
Vol 46 (12) ◽  
pp. 788-788
Author(s):  
Koji Inoke ◽  
Kenji Kaneko ◽  
Kenji Higashida ◽  
Zenji Horita ◽  
M. Weyland ◽  
...  
2006 ◽  
Vol 503-504 ◽  
pp. 603-608
Author(s):  
Koji Inoke ◽  
Kenji Kaneko ◽  
Z. Horita

A significant change in microstructure occurs during the application of severe plastic deformation (SPD) such as by equal-channel angular pressing (ECAP). In this study, intense plastic strain was imposed on an Al-10.8wt%Ag alloy by the ECAP process. The amount of strain was controlled by the numbers of passes. After 1 pass of ECAP, shear bands became visible within the matrix. With increasing numbers of ECAP passes, the fraction of shear bands was increased. In this study, the change in microstructures was examined by three-dimensional electron tomography (3D-ET) in transmission electron microscopy (TEM) or scanning transmission electron microscopy (STEM). With this 3D-ET method, it was possible to conduct a precise analysis of the sizes, widths and distributions of the shear bands produced by the ECAP process. It is demonstrated that the 3D-ET method is promising to understand mechanisms of microstructural refinement using the ECAP process.


2018 ◽  
Author(s):  
Davi R. Ortega ◽  
Catherine M. Oikonomou ◽  
H. Jane Ding ◽  
Prudence Rees-Lee ◽  
Alexandria ◽  
...  

AbstractThree-dimensional electron microscopy techniques like electron tomography provide valuable insights into cellular structures, and present significant challenges for data storage and dissemination. Here we explored a novel method to publicly release more than 11,000 such datasets, more than 30 TB in total, collected by our group. Our method, based on a peer-to-peer file sharing network built around a blockchain ledger, offers a distributed solution to data storage. In addition, we offer a user-friendly browser-based interface, https://etdb.caltech.edu, for anyone interested to explore and download our data. We discuss the relative advantages and disadvantages of this system and provide tools for other groups to mine our data and/or use the same approach to share their own imaging datasets.


2019 ◽  
Author(s):  
Ephraim Haffner-Staton ◽  
Antonino La Rocca ◽  
Alasdair Cairns ◽  
Michael McGhee ◽  
Mike Fay

2006 ◽  
Vol 46 (supplement2) ◽  
pp. S430
Author(s):  
Tatsunori Goto ◽  
Rina Nagai ◽  
Junichi Takagi ◽  
Kenji Iwasaki ◽  
Takuo Yasunaga

Structure ◽  
2010 ◽  
Vol 18 (2) ◽  
pp. 239-245 ◽  
Author(s):  
Philip N. Lewis ◽  
Christian Pinali ◽  
Robert D. Young ◽  
Keith M. Meek ◽  
Andrew J. Quantock ◽  
...  

2007 ◽  
Vol 45 (9) ◽  
pp. 1122-1125 ◽  
Author(s):  
Takayuki Ikehara ◽  
Hiroshi Jinnai ◽  
Takeshi Kaneko ◽  
Hideo Nishioka ◽  
Toshio Nishi

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