Chemnitz MTEX Workshop 2021
Learning Crystallographic Texture Analysis with MTEX
The workshop extends over two weeks and is part of the Master Course Introduction into the crystallographic texture analysis and counts for 4 ETCS points. While the first week is mainly devoted to beginners in MTEX and/or texture analysis the second week is a meeting of MTEX users with different experiences to share specific use cases, tips and tricks and discuss recent and upcoming developments in MTEX.Week 1: 08.03.2021 - 12.03.2021
During the first week we provide on a daily basis two morning lectures covering the basic theoretical principles of crystallography, diffraction and texture analysis. During the two afternoon exercises the theoretical concepts will be demonstrated at practical examples within MTEX. Lecture 1 - General Concepts:
free
video,
Matlab basics and general concepts of MTEX
the class vector3d, spherical coordinates
Lecture 2 - Crystal Lattice:
crystal lattice, direct and reciprocal coordinate system,
Miller indices, zonal axes, crystal shapes
Lecture 3 - Rotations and Crystal Symmetries:
rotation representations, Euler angles, Rodrigues vectors, visualizations,
fibers, crystal symmetries, point groups, Laue groups, space groups, fundamental
sectors
Exercise 1:
Lecture 4 - Orientations:
symmetrically equivalent orientations, pole figures,
inverse pole figures, visualizations, parameterization
Lecture 5 - Density Functions:
kernel density estimation, orientation density function, pole density
function, inverse pole density function, model ODFs, ODF
characteristics, random sampling
Lecture 6 - ODF Reconstruction from Pole Figure Data:
X-ray, neutron and synchrotron diffraction, data import, ghost correction, ODF estimation
Exercise 2:
Lecture 7 - EBSD:
data import, pole figures, inverse pole figures, color keys, reference
frame, properties
Lecture 8 - Grains:
grain reconstruction, shape properties, orientation properties
Exercise 3 - EBSD:
Exercise 4 - Grains:
Lecture 9 - Misorientations:
definition, visualization, phase transitions, misorientation
axis, misorientation angle distribution, KAM, GOS
Lecture 10 - Grain Boundaries:
geometric properties, visualization, smoothing, tilt vs. twist
boundaries, grain boundaries misorientations
Exercise 5 - Grain Boundaries :
Exercise 6 - Denoising EBSD Data and Misorientations:
Lecture 11 - Plastic / Elastic Deformation :
stress, strain, deformation tensors, slip systems, Schmid Factor,
dislocation systems, GND
Lecture 12 - Tensorial Properties:
wave velocities, visualization, average tensors (Voigt, Reuss, Hill) from EBSD and ODF
Exercise 7 - Tensorial Properties :
Times: Lecture 1: 8:45-10:00, Lecture 2: 10:30 - 11:45, Exercise 1: 13:00-14:30, Exercise 2: 15:00 - 16:00
Week 2: 15.03.2021 - 17.03.2021
The second week will consist of lectures by invited experts that explain in detail the application of MTEX to specific problems as listed below. Furthermore, current or future users of MTEX are invited to share their experiences with MTEX or ask questions about specific use cases. To encourage discussions we plan with slots of 20 minutes talk given by the participants followed by a 10 minutes discussion. As we expect a very heterogeneous auditorium we kindly ask the participant to keep their talks as simple as possible.
Jessica Hiscocks
(Kingston Process Metallurgy, Canada) |
|
Zachary Michels
(University of Minnesota, USA) |
|
Luiz Morales
(ETH Zürich) |
|
Frank Niessen
(DTU, Technical University of Denmark) |
Parent grain reconstruction from fully and partially transformed martensitic microstructures |
Steve Niezgoda
(Ohio State University) |
Extending EBSD Texture Analysis - Parametric models and Uncertainty Quantification |
Anthony Rollett
(Carnegie Mellon University, USA) |
Texture in laser powder bed fusion (LPBF) printing |
Daniel Savage
(Los Alamos, USA) |
Time Schedule
Monday | Tuesday | Wednesday | |
---|---|---|---|
9:00 - 10:00 |
F. Niessen
Parent grain reconstruction |
L. Morales
Interphase misorientations |
S. Hunt, Energy dispersive XRD,
N. Byres, Texture in hot rolled Ti64 plate A. Plowman, Crystal plasticity modeling, |
10:00 - 10:30 |
T. Nyyssönen Twins in reconstructed austenite |
Sheng Fan
Dynamic recrystallization in ice |
G. Zeng
Nucleation of Al-Mn-(Fe) |
10:30 - 11:00 |
D. Depriester
Meshing and finite element analysis |
M.G. Llorens
Dynamic recrystallisation in rocks |
M. Witte
MTEX in industrial research |
11:00 - 11:30 |
P. Lehto
Dislocation sub-structures |
B. Sørensen
Host / twin classification |
G. Nolze
CALM down: Identifying unknown phases |
Lunch | free discussions | ||
13:30 - 14:30 |
D. Savage
Graph Based Twin Analysis |
Z. Michels
MTEX for structural geologists |
A. Rollett
Texture in LPBF printing |
14:30 - 15:00 |
J. Hiscocks
Lies my EBSD system told me |
R. Kilian
Quartz textures and deformation |
S. Niezgoda
Uncertainty Quantification |
15:00 - 15:30 |
S. Nayir
Low and high angle boundaries |
U. Faul
Olivine grain boundaries |
Round Table Discussion Improvements to MTEX |
15:30 - 16:00 |
L. Lutterotti
MAUD and MTEX |
M. Allard
Active Slip Systems in Plagioclase |
Round Table Discussion Future Developments in MTEX |
16:00 - 16:30 |
B. Britton
Advancing pattern analysis |
R. McDermott
EBSD post-processing methods |
Registration:
- Please use our registration form (now working 😉) to subscribe or write an email to Ralf.Hielscher@mathematik.tu-chemnitz.de.
- Deadline for registration is 19th of February 2021
- Registration fee first and second week: students - 100 Euro, other - 200 Euro
- Registration fee second week only: 100 Euro
Organizers:
- Ralf Hielscher, email contact: ralf.hielscher@mathematik.tu-chemnitz.de
- Rüdiger Kilian, Universität Halle