Search Results - "Zaefferer, S."

A critical review of orientation microscopy in SEM and TEM by Zaefferer, S.

“…Orientation microscopy (OM) refers to techniques for reconstruction of microstructures based on the spatially resolved measurement of individual…”
Get full text

Assessment of geometrically necessary dislocation levels derived by 3D EBSD by Konijnenberg, P.J., Zaefferer, S., Raabe, D.

“…[Display omitted] Existing alternatives for the calculation of geometrically necessary dislocation (GND) densities from orientation fields are discussed…”
Get full text

Strain hardening by dynamic slip band refinement in a high-Mn lightweight steel by Welsch, E., Ponge, D., Hafez Haghighat, S.M., Sandlöbes, S., Choi, P., Herbig, M., Zaefferer, S., Raabe, D.

“…The strain hardening mechanism of a high-Mn lightweight steel (Fe-30.4Mn-8Al-1.2C (wt%)) is investigated by electron channeling contrast imaging (ECCI) and…”
Get full text

The effect of grain size and grain orientation on deformation twinning in a Fe–22 wt.% Mn–0.6 wt.% C TWIP steel by Gutierrez-Urrutia, I., Zaefferer, S., Raabe, D.

“…We investigate the effect of grain size and grain orientation on deformation twinning in a Fe–22 wt.% Mn–0.6 wt.% C TWIP steel using microstructure…”
Get full text

On the formation mechanisms, spatial resolution and intensity of backscatter Kikuchi patterns by Zaefferer, S.

“…The present paper is divided into two main sections. In the first, the formation mechanisms of backscatter Kikuchi patterns (BKP) are discussed on the basis of…”
Get full text

The effect of grain size and grain orientation on deformation twinning in a Fe–22wt.% Mn–0.6wt.% C TWIP steel by Gutierrez-Urrutia, I., Zaefferer, S., Raabe, D.

Get full text

On the role of non-basal deformation mechanisms for the ductility of Mg and Mg–Y alloys by Sandlöbes, S., Zaefferer, S., Schestakow, I., Yi, S., Gonzalez-Martinez, R.

“…Mg–Y alloys show significantly enhanced room temperature ductility compared to pure Mg and other classical Mg wrought alloys. The presented study focuses on…”
Get full text

Atomic-scale quantification of grain boundary segregation in nanocrystalline material by Herbig, M, Raabe, D, Li, Y J, Choi, P, Zaefferer, S, Goto, S

“…Grain boundary segregation leads to nanoscale chemical variations that can alter a material's performance by orders of magnitude (e.g., embrittlement). To…”
Get full text

Ductility improvement of Mg alloys by solid solution: Ab initio modeling, synthesis and mechanical properties by Sandlöbes, S., Pei, Z., Friák, M., Zhu, L.-F., Wang, F., Zaefferer, S., Raabe, D., Neugebauer, J.

“…The I1 intrinsic stacking fault energy (I1 SFE) serves as an alloy design parameter for ductilizing Mg alloys. In view of this effect we have conducted…”
Get full text

The relation between ductility and stacking fault energies in Mg and Mg–Y alloys by Sandlöbes, S., Friák, M., Zaefferer, S., Dick, A., Yi, S., Letzig, D., Pei, Z., Zhu, L.-F., Neugebauer, J., Raabe, D.

“…The underlying mechanisms that are responsible for the improved room-temperature ductility in Mg–Y alloys compared to pure Mg are investigated by transmission…”
Get full text

Alloying effects on microstructure formation of dual phase steels by Schemmann, L., Zaefferer, S., Raabe, D., Friedel, F., Mattissen, D.

“…In dual-phase (DP) steels, inherited microstructures and elemental distributions affect the kinetics and morphology of phase transformation phenomena and the…”
Get full text

Effect of retained beta layer on slip transmission in Ti–6Al–2Zr–1Mo–1V near alpha titanium alloy during tensile deformation at room temperature by He, Dong, Zhu, Jingchuan, Zaefferer, S., Raabe, D.

Get full text

Electron channeling contrast imaging of twins and dislocations in twinning-induced plasticity steels under controlled diffraction conditions in a scanning electron microscope by Gutierrez-Urrutia, I., Zaefferer, S., Raabe, D.

“…Dislocation cells and mechanical twins have been imaged by electron channeling contrast imaging (ECCI) in a scanning electron microscope under controlled…”
Get full text

A study of microstructure, transformation mechanisms and correlation between microstructure and mechanical properties of a low alloyed TRIP steel by Zaefferer, S., Ohlert, J., Bleck, W.

“…Differently heat treated samples of a low alloyed TRIP steel have been investigated using electron diffraction techniques in SEM and TEM. Aim was, first, to…”
Get full text

Coupling of Electron Channeling with EBSD: Toward the Quantitative Characterization of Deformation Structures in the SEM by Gutierrez-Urrutia, I., Zaefferer, S., Raabe, D.

“…The coupling of electron channeling contrast imaging (ECCI) with electron backscatter diffraction (EBSD) provides an efficient and fast approach to perform…”
Get full text

Strengthening and strain hardening mechanisms in a precipitation-hardened high-Mn lightweight steel by Yao, M.J., Welsch, E., Ponge, D., Haghighat, S.M.H., Sandlöbes, S., Choi, P., Herbig, M., Bleskov, I., Hickel, T., Lipinska-Chwalek, M., Shanthraj, P., Scheu, C., Zaefferer, S., Gault, B., Raabe, D.

“…We report on the strengthening and strain hardening mechanisms in an aged high-Mn lightweight steel (Fe-30.4Mn-8Al-1.2C, wt.%) studied by electron channeling…”
Get full text

EBSD as a tool to identify and quantify bainite and ferrite in low‐alloyed Al‐TRIP steels by ZAEFFERER, S., ROMANO, P., FRIEDEL, F.

“…Summary Bainite is thought to play an important role for the chemical and mechanical stabilization of metastable austenite in low‐alloyed TRIP steels…”
Get full text

Three-dimensional investigation of the texture and microstructure below a nanoindent in a Cu single crystal using 3D EBSD and crystal plasticity finite element simulations by Zaafarani, N., Raabe, D., Singh, R.N., Roters, F., Zaefferer, S.

“…This paper reports a three-dimensional (3D) study of the microstructure and texture below a conical nanoindent in a (111) Cu single crystal at nanometer-scale…”
Get full text

Investigation of orientation gradients around a hard Laves particle in a warm-rolled Fe3Al-based alloy using a 3D EBSD-FIB technique by Konrad, J., Zaefferer, S., Raabe, D.

“…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…”
Get full text

A study on the geometry of dislocation patterns in the surrounding of nanoindents in a TWIP steel using electron channeling contrast imaging and discrete dislocation dynamics simulations by Zhang, J.-l., Zaefferer, S., Raabe, D.

“…Electron channeling contrast imaging under controlled diffraction conditions (cECCI) enables observation of crystal defects, especially dislocations, stacking…”
Get full text