Investigation of orientation gradients around a hard Laves particle in a warm-rolled Fe3Al-based alloy using a 3D EBSD-FIB technique

By J. Konrad, S. Zaefferer, Dierk Raabe. 2006

189 citations recorded by the source corpus.

We present a study of the microstructure around a hard Laves particle in a warm-rolled intermetallic Fe3Al-based alloy. The experiments are conducted using a system for three-dimensional orientation microscopy (3D electron backscattering diffraction, EBSD). The approach is realized by a combination of a focused ion beam (FIB) unit for serial sectioning with high-resolution field emission scanning electron microscopy with EBSD. We observe the formation of steep 3D orientation gradients in the Fe3Al matrix around the rigid precipitate which entail in part particle-stimulated nucleation events in the immediate vicinity of the particle. The orientation gradients assume a characteristic pattern around the particle in the transverse plane while revealing an elongated tubular morphology in the rolling direction. However, they do not reveal a characteristic common rotation axis. Recovered areas in the matrix appear both in the transverse and rolling directions around the particle. The work demonstrates that the new 3D EBSD-FIB technique provides a new level of microstructure information that cannot be achieved by conventional 2D-EBSD analysis.

Subfields: Biomedical Engineering, Computational Mechanics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/1f6f34df0aebe21b3fd18af98438c74eaff926b7

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. Franz Roters
2. Philip Eisenlohr
3. T. Bieler
4. Dierk Raabe
5. L. Hantcherli
6. D. Tjahjanto
7. Matti Schneider
8. O. A. Zambrano

In Computational Mechanics

1. Dierk Raabe

In Materials Chemistry

1. Franz Roters
2. Dierk Raabe
3. Philip Eisenlohr
4. T. Bieler
5. L. Hantcherli
6. D. Tjahjanto
7. M. Diehl
8. C. Tasan

Citations in the corpus

• Overview of constitutive laws, kinematics, homogenization and multiscale methods in crystal plasticity finite-element modeling: Theory, experiments, applications (2010, methodology): “In addition to these well-established methods, novel tomographic experiments allow one to compare CPFE predictions to real microstructures also in three dimensions, for instance by synchrotron orientation tomography [214,394], and EBSD tomography (3-D EBSD) [171,174,177,216, 395,396].”