Gutiérrez-Urrutia, I.: Electron channelling contrast imaging under controlled diffraction conditions: A powerful technique for quantitative microstructural characterization of deformed materials. International Symposium on Plastic Deformation and Texture Analysis, Alcoy, Spain (2012)
Gutiérrez-Urrutia, I.; Marceau, R. K. W.; Raabe, D.: Multi-scale investigation of strain-hardening mechanisms in high-Mn steels from the mesoscale to the atomic scale. Lecture at Materials Department, Oxford University, Oxford, UK (2012)
Chen, Z.; Boehlert, C.; Gutiérrez-Urrutia, I.; Llorca, J.; Pérez-Prado, M. T.: In-situ analysis of the tensile deformation mechanisms in rolled AZ31. TMS 2012 Annual Meeting, Orlando, FL, USA (2012)
Gutiérrez-Urrutia, I.; Raabe, D.: Evaluation of twin boundary interfaces to strain hardening by electron channeling contrast imaging. TMS 2012 Annual Meeting, Orlando, FL, USA (2012)
Gutiérrez-Urrutia, I.: Electron channeling contrast imaging: A powerful technique for quantitative microstructural characterization of deformed materials in the SEM. Seminar at Bundesanstalt fuer Materialforschung-pruefung (BAM), Berlin, Germany (2012)
Gutiérrez-Urrutia, I.; Raabe, D.: New insights on quantitative microstructure characterization by electron channeling contrast imaging under controlled diffraction conditions in the SEM. Microscopy & Microanalysis, Phoenix, AZ, USA (2012)
Gutierrez-Urrutia, I.; Raabe, D.: Study of deformation twinning and planar slip in a TWIP steel by Electron Channelling Contrast Imaging in a SEM. International Conference on the Textures of Materials, ICOTOM 16, Bombay, India (2011)
Pérez-Prado, M. T.; Boehlert, C.; Llorca, J.; Gutiérrez-Urrutia, I.: In-situ analysis of deformation and recrystallization mechanisms. European Congress on Advanced Materials and Processes, EUROMAT 2011, Montpellier, France (2011)
Gutierrez-Urrutia, I.; Raabe, D.: Dislocation imaging by electron channeling contrast under controlled diffraction conditions in the SEM. Microscopy Conference MC 2011, Kiel, Germany (2011)
Gutierrez-Urrutia, I.; Dick, A.; Hickel, T.; Neugebauer, J.; Raabe, D.: Understanding TWIP steel microstructures by using advanced electron microscopy and ab initio predictions. International Conference on Processing & Manufacturing of Advanced Materials THERMEC 2011, Québec City, QC, Canada (2011)
Gutierrez-Urrutia, I.; Raabe, D.: The influence of planar slip and deformation twinning on mechanical behavior in TWIP steels. International Conference on Processing & Manufacturing of Advanced Materials THERMEC 2011, Québec City, QC, Canada (2011)
Raabe, D.; Gutierrez-Urrutia, I.: Effect of strain path and texture on microstructure in Fe–22 wt.% Mn–0.6 wt.% C TWIP steel. 1st International Conference on High Manganese Steels 2011, Seoul, South Korea (2011)
Gutierrez-Urrutia, I.; Zaefferer, S.; Raabe, D.: Effect of grain size and heterogeneous strain distribution on deformation twinning in a Fe–22Mn–0.6C TWIP steel. THERMEC 2009, Berlin, Germany (2009)
Gutierrez-Urrutia, I.; Zaefferer, S.; Raabe, D.: Quantitative electron channelling contrast imaging: A promising tool for the study of dislocation structures in SEM. Electron Backscatter Diffraction Meeting, Swansea, UK (2009)
Archie, F. M. F.: Nanostructured High-Mn Steels by High Pressure Torsion: Microstructure-Mechanical Property Relations. Master, Materials Chemistry, Lehrstuhl für Werkstoffchemie, RWTH Aachen, Aachen, Germany (2014)
The aim of the Additive micromanufacturing (AMMicro) project is to fabricate advanced multimaterial/multiphase MEMS devices with superior impact-resistance and self-damage sensing mechanisms.
We have studied a nanocrystalline AlCrCuFeNiZn high-entropy alloy synthesized by ball milling followed by hot compaction at 600°C for 15 min at 650 MPa. X-ray diffraction reveals that the mechanically alloyed powder consists of a solid-solution body-centered cubic (bcc) matrix containing 12 vol.% face-centered cubic (fcc) phase. After hot compaction, it consists of 60 vol.% bcc and 40 vol.% fcc. Composition analysis by atom probe tomography shows that the material is not a homogeneous fcc–bcc solid solution
Magnetic properties of magnetocaloric materials is of utmost importance for their functional applications. In this project, we study the magnetic properties of different materials with the final goal to discover new magnetocaloric materials more suited for practical applications.
Laser Powder Bed Fusion (LPBF) is the most commonly used Additive Manufacturing processes. One of its biggest advantages it offers is to exploit its inherent specific process characteristics, namely the decoupling the solidification rate from the parts´volume, for novel materials with superior physical and mechanical properties. One prominet…
Statistical significance in materials science is a challenge that has been trying to overcome by miniaturization as in micropillar compression. However, this process is still limited to 4-5 tests per parameter variance, i.e. Size, orientation, grain size, composition, etc. as the process of fabricating pillars and testing has to be done one by one.…
In this project we pursue recent developments in the field of austenitic steels with up to 18% reduced mass density. The alloys are based on the Fe-Mn-Al-C system.
Local lattice distortion is one of the core effects in complex concentrated alloys (CCAs). It has been expected that the strength CCAs can be improved by inducing larger local lattice distortions. In collaboration with experimentalists, we demonstrated that VCoNi has larger local lattice distortions and indeed has much better strength than the…
This project is a joint project of the De Magnete group and the Atom Probe Tomography group, and was initiated by MPIE’s participation in the CRC TR 270 HOMMAGE. We also benefit from additional collaborations with the “Machine-learning based data extraction from APT” project and the Defect Chemistry and Spectroscopy group.