The workshop extends over two weeks and is part of the master course Introduction into crystallographic texture analysis and counts for 5 ECTS 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. A special focus will be the new features of MTEX 6.0 which includes pseudo 3d functionality for EBSD and grains and multiple spatial reference systems.
Week 1: Learning Crystallographic Texture Analysis with MTEX
Date: 04.03.2024 - 8.03.2024
During the first week we provide on a daily basis lectures covering the principles of EBSD, texture and crystallography and their relation to plastic deformation and macroscopic properties. All concepts will be illustrated via practical examples during the exercises within MTEX.
Matlab basics and general concepts of MTEX, the class vector3d, spherical coordinates
Lecture 1 - EBSD slides , video
data import, reference frame alignment, pole figures, inverse pole figures, color keys
Exercise 1 script , solution , data , video
Lunch
Lecture 2 - Orientations and Symmetries slides , video
crystal lattice, direct and reciprocal coordinate system, Miller indices, zonal axes, crystal shapes, point groups, Laue groups, symmetrically equivalent orientations, pole figures, inverse pole figures, fundamental sectors
Exercise 2 script , solution , video
segmentation, shape properties, orientation properties, grain selection, grain statistics
Exercise 3 script , solution , data , video
Lunch
Lecture 4 - Misorientations and Grain Boundaries slides , video , slides
grain boundary misorientations, misorientation axis, misorientation angle, KAM, GOS, IGMA, twin boundaries, tilt vs. twist boundaries, orientation, gradients, statistics of boundary networks
Exercise 4 script 1 , solution 1 , data 1 , script 2 , solution 2 , data 2 , video
Lunch
Lecture 5 - Density Functions slides , slides , video
kernel density estimation, orientation density function, pole density function, inverse pole density function, model ODFs, ODF characteristics, random sampling, ODF reconstuction from XRD data
Exercise 5 script , solution , video
Exercise 6 - Grain Boundaries and Misorientations script 1 , solution 1 , data 1 , script 2 , solution 2 , data 2 , video
Lunch
Lecture 7 - Tensorial Properties slides , video
tensor arithmetic, visualization, effect of symmetry, thermal expansion, stress and strain tensors, piezoelectricity, elasticity, wave velocities
Exercise 7 - From Single Grain to Bulk Tensors script , video
average tensors (Voigt, Reuss, Hill) from EBSD and ODF
how to set up your EBSD system for MTEX
Lecture 9 - Plasticity script , video
deformation tensors, slip systems, dislocation systems, Schmid Factor, Taylor factor, combining MTEX with external software like VPSC
lunch
Lecture 10 - Parent Grain Reconstuction script , video
determination of orientation relationships, phase transition, parent grain reconstruction, transformation textures, variant selection
Free Discussion of Personal Data Sets
Times: Lecture 1: 8:00 - 9:30, Exercise 1: 10:00 - 11:30, Lecture 2: 13:00-14:30, Exercise 2: 15:00 - 16:30
Week 2: MTEX in Applications
Date: 11.03.2024 - 13.03.2024
The second week is a get together of new and experienced MTEX users to share their use cases of MTEX, research results and MTEX specific tricks and tips. There will be introductory lectures by invited experts that explain their workflow in specific applications of MTEX. To encourage discussions we plan with slots of 20 minutes talks followed by 10 minute discussions. As we expect a very heterogeneous auditorium we kindly ask the participants to keep their talks as accessible as possible.
Keynote Speakers
-
Dorian Depriester (Ecole Nationale Supérieure d’Arts et Métiers, Aix-en-Provence): Mechanical behaviour of polycrystals: from EBSD to numerical simulations
-
Thomas Griffiths (Universität Wien): Unravelling the evolution of partially molten silicate systems using EBSD and MTEX
-
Claire Griesbach (ETH Zürich): Rate-dependent ferroelectric switching mechanisms in lead zirconium titanate elucidated by spherically indexed EBSD patterns
-
Katharina Marquardt (University of Oxford): Grain boundary complexion transition in Forsterite, an EBSD study
-
Alec Saville (National Institute of Standards and Technology, USA): Connecting Microstructure, Processing, and Phase Transformations in Metals Via MTEX.
-
Marco Witte (Salzgitter Mannesmann): Steel: Production, Processing and MTEX
Time Schedule
| Time | Speaker | Title |
|---|---|---|
| 9:00−10:00 | T. Griffiths | Unraveling the evolution of partially molten silicate systems using EBSD and MTEX video |
| Coffee | ||
| 10:30−11:00 | V. Tong | TrueEBSD distortion correction and grain boundary smoothing video |
| 11:00−11:30 | T. Nyyssönen | Three-dimensional shape metrics of transformation products from two-dimensional orientation maps: ongoing work video |
| 11:30−12:00 | F. Niessen | Parent Grain Reconstruction in MTEX - a journey beyond default parameters video |
| Lunch | ||
| 13:30−14:30 | K. Marquardt | canceled Grain boundary complexion transition in Forsterite, an EBSD study |
| 14:30−15:00 | R. Kühn | Clay mineral textures from the hikurandi margin |
| Coffee | ||
| 15:30−15:50 | D. Souza | High Pressure - high temperature deformation experiments to understand deep earthquakes video |
| 15:50−16:10 | G. Lopez | Mechanical Implications of Mica Bearing rocks video |
| 16:10−16:30 | G. McGill | Micro Porosity in plastically deformed Quartz video |
| Short walk through Freiberg | ||
| 18:00 | Dinner at Stadtwirtschaft Freiberg |
| Time | Speaker | Title |
|---|---|---|
| 8:30−9:30 | C. Griesbach | Rate-dependent ferroelectric switching mechanisms in lead zirconium titanate elucidated by spherically indexed EBSD patterns video |
| 9:30−10:00 | L. Richter | Spherical indexing of pseudo symmetries video |
| Coffee | ||
| 10:30−11:00 | P. Prathik | A synergistic approach to characterize anisotropic materials using ultrasound and microstructural analysis (online) video |
| 11:00−11:30 | T. Vermeij | Local Identification of Deformation Twinning from Deformation Fields video |
| 11:30−12:00 | C. Mornout | Methodology for Local Identification of Grain Boundary Sliding on the Nanoscale video |
| Lunch | ||
| 13:30−14:30 | A. Saville | Connecting Microstructure, Processing, and Phase Transformations in Metals Via MTEX (online) video |
| 14:30−15:00 | D. Guan | Track-Rex: a universal toolbox for tracking recrystallization and grain growth behaviors in polycrystalline materials. (online) video |
| Coffee | ||
| 15:00−16:00 | D. Depriester | Mechanical behaviour of polycrystals: from EBSD to numerical simulations video |
| 16:00−16:20 | B. Jacobsen | MTEX 6.0 and Grain3d - the current state video |
| 16:20−16:40 | R. de Oliveira Melo | Relation between microstructure and mechanical properties of a 17-4PH grade steel manufactured by additive manufacturing Powder Bed Fusion Laser Based technique video |
| Time | Speaker | Title |
|---|---|---|
| 8:30−9:30 | M. Witte | Steel: Production, Processing and MTEX video |
| 9:30−10:00 | V. Babic | EBSD analysis workflows – Efficient, automatic, easy! video |
| Coffee | ||
| 10:30−11:00 | K. Molodov | On the effect of microalloying on retained austenite in hot-dip galvanized multiphase steels video |
| 11:00−11:20 | J. Dietrich | Slip trace and texture analysis in wrought magnesium alloys video |
| 11:20−11:40 | S. Mohagheghi | Determination of orientation relationships in three-phase eutectic grains video |
| 11:40−12:00 | H. Sofiane Meddas | Use of OR tool for variant pairing analysis and secondary carbide precipitation of tempered tool steel: Impact of multiple austenitization cycles on mechanical properties video |
| Lunch | ||
| 13:30−14:30 | Round Table Discussion | |
| Coffee |
Venue:
Hotel Kreller: 80 Euro per night with breakfast, very close
Hotel am Obermarkt: 79 Euro per night without breakfast, very close
Elly Hostel: 77 Euro per night, with kitchen
Registration:
- Please register at https://acatrain.net/events/freiberg-mtex-workshop-2024
- Deadline for registration is 28th of February 2024
Registration Fee:
- first + second week (presence): (PhD) students - 400 Euro, other - 600 Euro
- first + second week (online): (PhD) students - 200 Euro, other - 300 Euro
- second week: (PhD) students - 100 Euro, other - 200 Euro
- Payment includes Lunch for all days and Excursion fee
- Registration for students of the TU Freiberg, the TU Chemnitz and the University of Halle is free of charge
Organizers:
Ralf Hielscher (TU Bergakademie Freiberg), Rüdiger Kilian (Universität Halle), Luiz Morales (ETH Zürich), Frank Niessen (DTU Dänemark)
