.ctf file EBSD

[Boyka202]

Hello everyone, I was able to successfully export the .ctf file from MTEX and import it into DREAM3D without any issues. For the next step, I am working on generating the DREAM3D file to create the geom.vti and material files for DAMASK3. I am currently following a specific pipeline in DREAM3D for this process. Could you please let me know if this is the correct approach? Also, I noticed that the process takes quite a long time—does this seem normal to you? How to set RVE? Because the RVE original is based on EBSD 7007001? When I decreased to such as 202020, just show me partial RVE, not the whole. Also one side is not clear.

Thanks a lot for your points. I have attached files. As I mentioned, DREAM3D reads .ctf file and gives Dream3D output, but the main problem is that nothing is applied to the geometry; it shows the geometry of the EBSD map with no output changes (7007001, resolution: 1401401), also,
the material file just included one phase after pipelines and nothing happened.
The point is that I extract material.yaml file and geom.vti file for DAMASK3 simulation via Python code, not in DREAM3D (it is not possible)

python code

import damask
import numpy as np
import glob
files = glob.glob("*.dream3d")
for file in files:
config=damask.ConfigMaterial.load_DREAM3D(file)
config.save('material.yaml')
grid=damask.GeomGrid.load_DREAM3D(file)
grid.save('ab')

materil file
phase: {'1': null}
homogenization:
direct: {N_constituents: 1}
material:

constituents:
    phase: 1
    O: [0.8084738722022345, 0.12320130165125133, -0.0864147839979203, 0.5689674176474038]
    v: 1.0
    homogenization: direct
constituents:
    phase: 1
    O: [0.8042655544898086, 0.12430019517945436, -0.09678337877374496, 0.5730090373918093]
    v: 1.0
    homogenization: direct
constituents:
    phase: 1
    O: [0.800022098195443, 0.12535207005519763, -0.11521260256951178, 0.5753064897435083]
    v: 1.0
    homogenization: direct
constituents:
    phase: 1
    O: [0.7979106079289381, 0.12443691390734077, -0.1304818063987511, 0.5751770287577629]
    v: 1.0
    homogenization: direct
constituents:
    phase: 1
    O: [0.7980604882902153, 0.10867003721607273, -0.14368967104525007, 0.5750161375790669]
    v: 1.0
    homogenization: direct

ctf.zip
dream.zip

Thanks alot.

[imikejackson]

Using both those files and DREAM.3D version 6.5.171 I was able to produce a synthetic microstructure. I am not familiar with DAMASK and how it wants you to preprocess the data. Also I am unsure of that part the .ctf file plays in all of this. It certainly does not play a part in the generation of the synthetic microstruture.

The pipeline completed in about 10 seconds on my machine.

I noticed that the average grain size for the primary phase is ~12 and the average grain size (ESD) for the precipitate phase is ~10. Are you really trying to have precipitates that large? Maybe that second phase should be another primary phase?

Also, what reference frame does MTEX use for the sample and crystal? Typically there needs to be reference frame corrections when reading in the .ctf files. (https://www.dream3d.io/nx_reference_manual/html/OrientationAnalysis/ReadCtfDataFilter.html) but I am not sure if MTEX took care of all of that or not.

[Boyka202]

Thank you very much. I used the original .ctf file directly from EBSD, not from MTEX.

My main question is: how did you perform this step? Did you use the same pipeline settings that I used to obtain the final data, or were there any differences?

Also, could you please share the DREAM3D file with me?
file.zip

[imikejackson]

I used the exact same pipeline. The only change was the file paths.