Summary & Purpose

Each folder in this section of data is for a single picoindentation sample with its related files. Generally, for each sample indentation, a video of the indentation, a .txt file with the collected load-displacement data, and a copy of the original .hys file is included. Where samples have multiples of the .hys files, multiple indentations were made on the same sample. These are labeled sequentially. These files are all of the Fe++ 100 dpa 500C ODS micro-pillars. Videos, text files, and .hys files are collected using the Hysitron Picoindentation software. A final excel sheet summarizes all the Fe++ 100 dpa 500 C pillar data and calculates the stress-strain curves from the .txt load-displacement files included in each individual sample folder. Collecting both video and load-displacement data allows for a quantitative and qualitative analysis.

Date of Publication or Submission

7-28-2017

DOI

https://doi.org/10.18122/B2M41Z

Funding Citation

This research was sponsored in part by the US Nuclear Regulatory Commission Grant NRC-HQ-84-14-G-0056, the Micron Foundation, and by the US DOE, Office of Nuclear Energy under DOE Idaho Operations Office Contract DE-AC07-05ID14517, as part of the Nuclear Science User Facilities experiment 15-540.

Single Dataset or Series?

Series

Data Format

Hysitron file format is .hys and can only be opened using the Hysitron Picoindenter software. Video files are in .avi format. Excel files are in .xlsx format. Data files are in .txt format.

Data Attributes

Fe++ irradiation conducted at Michigan Ion Beam Laboratory. TEM picoindentation samples were prepared using an FEI Quanta 3D FEG focused ion beam (FIB) at the Center for Advanced Energy Studies (CAES). Samples were cut and lifted perpendicular to the surface of the bulk sample. This orientation allowed for each sample to be made from the damaged layer. Prior to milling, all specimen surfaces were protected with a 1 μ platinum deposit. Each sample was milled from the same liftout. The liftout had dimensions of ~40 μ wide, 3 μ thick, and ~13 μ tall. Picoindentation samples were milled into this liftout at a variety of dimensions. Picoindentation was run in displacement controlled mode. Initial samples were taken to a variety of displacements. As the users began to be more familiar with the process, displacement depths were held at half the pillar height. Video viles were compressed using MJPEG compression. They were taken at 30 fps and with an exposure of 0.15 s on the TEM.

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