NANOINDENTATION DATA:

Nanoindentation datasets are grouped into folders for a given material and irradiation condition.  Folder nomenclature is:

ALLOY-FABRICATION_TEMPERATURE_DOSE_ID-NUMBER

For example, the folder G91-C_400C_3DPA_ID-666 contains data from specimen ID number 666, which is alloy Grade 91, cast, irradiated at 400 degC to 3 dpa.

Each folder contains three types of files:

1)  One “Read Me” .txt file:  The first line of these files lists the total number of indents, N, made on the given specimen (typically N = 20-30 indents per specimen).  The remainder of this file lists the file names corresponding to each of these N indents and tabulates key indentation results and parameters, specifically:  maximum indent depth hmax (nm), characteristic depth hc (nm), maximum load Pmax (microN), stiffness S (microN/nm), indent area A (nm^2), effective depth heff (nm), reduced modulus Er (GPa), and hardness H (GPa).  These values can be used with the corresponding raw data files (see #2 below) to calculate H versus depth and E versus depth curves, per the Oliver-Pharr method.

2)  A total of N raw data .txt files, each corresponding to one of the indents made on the given specimen.  Indent depth (nm), load (microN), and time (s) are tabulated throughout the duration of each indent, from initial to deepest indent depths.  Load-displacement curves can be generated from these raw data.

3)  Some specimen ID numbers will have an associated .jpg image that displays the array of indents made on the specimen.  Images were not collected for all specimens, so are not available in all folders.