A non-destructive technique for the microstructural investigation of nickel base single crystal superalloys: High resolution diffraction of high energy synchrotron radiation

1997 ◽  
Vol 36 (10) ◽  
pp. 1151-1159 ◽  
Author(s):  
A. Royer ◽  
P. Bastie
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Single Crystal ◽  
High Energy ◽  
Microstructural Investigation ◽  
Nickel Base ◽  
Non Destructive

Extremely High Resolution Single Crystal Diffractometory for Orbital Resolution using High Energy Synchrotron Radiation at SPring-8

2010 ◽  
Author(s):  
Kunihisa Sugimoto ◽  
Hiroyuki Ohsumi ◽  
Shinobu Aoyagi ◽  
Eiji Nishibori ◽  
Chikako Moriyoshi ◽  
...  
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Single Crystal ◽  
High Energy ◽  
Resolution Single

3-Dimensional Characterization of Polycrystalline Bulk Materials Using High-Energy Synchrotron Radiation

2007 ◽  
Vol 539-543 ◽  
pp. 2353-2358 ◽  
Author(s):  
Ulrich Lienert ◽  
Jonathan Almer ◽  
Bo Jakobsen ◽  
Wolfgang Pantleon ◽  
Henning Friis Poulsen ◽  
...  
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
High Energy ◽  
Mapping Technique ◽  
X Ray Diffraction ◽  
Bulk Materials ◽  
Reciprocal Space Mapping ◽  
3 Dimensional ◽  
Individual Grains

The implementation of 3-Dimensional X-Ray Diffraction (3DXRD) Microscopy at the Advanced Photon Source is described. The technique enables the non-destructive structural characterization of polycrystalline bulk materials and is therefore suitable for in situ studies during thermo-mechanical processing. High energy synchrotron radiation and area detectors are employed. First, a forward modeling approach for the reconstruction of grain boundaries from high resolution diffraction images is described. Second, a high resolution reciprocal space mapping technique of individual grains is presented.

Synchrotron 3D μ-Tomography of Porosity during Hot Isostatic Pressing of a Single-Crystal Nickel-Base Superalloy

2021 ◽  
Vol 1016 ◽  
pp. 102-106
Author(s):  
Alexander Epishin ◽  
Bettina Camin ◽  
Lennart Hansen ◽  
Jonas Schmidt
Keyword(s):  
Fatigue Strength ◽  
High Resolution ◽  
Single Crystal ◽  
Hot Isostatic Pressing ◽  
European Synchrotron Radiation Facility ◽  
Nickel Base Superalloy ◽  
Isostatic Pressing ◽  
Long Time ◽  
Nickel Base ◽  
Base Superalloy

The evolution of microporosity in single-crystal nickel-base superalloy CMSX-4 during hot isostatic pressing has been investigated by high resolution tomography at the European Synchrotron Radiation Facility in Grenoble. The kinetic dependencies of microporosity annihilation in the superalloy in initially as-cast and homogenized conditions were obtained. It was shown that smaller homogenization pores of about 5-10 μm in size are rapidly annihilate during hot isostatic pressing, while annihilation of larger solidification pores of size up to a few hundred micrometer takes a long time. After commercial hot isostatic pressing at 1288 °C, 103 MPa, 4 h only rare pores smaller than 20 μm remain, which are not critical for fatigue strength.

High-Resolution Bulk Magnetic Scattering of High-Energy Synchrotron Radiation

1994 ◽  
Vol 27 (7) ◽  
pp. 537-541 ◽  
Author(s):  
M Lippert ◽  
Th Brückel ◽  
Th Köhler ◽  
J. R Schneider
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
High Energy ◽  
Magnetic Scattering

Improvement of spectrometer energy resolution for high-resolution photoelectron spectroscopy

1998 ◽  
Vol 5 (3) ◽  
pp. 1020-1022 ◽  
Author(s):  
H. Iwai ◽  
H. Namba ◽  
Y. Kido ◽  
M. Taguchi ◽  
R. Oiwa
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Kinetic Energy ◽  
Energy Resolution ◽  
Photoelectron Spectroscopy ◽  
High Energy ◽  
Resolving Power ◽  
High Energy Resolution ◽  
Operation Conditions ◽  
Optimized Conditions

For high-energy-resolution photoelectron spectroscopy using synchrotron radiation, the energy resolution of a commercial compact photoelectron spectrometer (hemispherical concentric spectrometer) was improved by reducing the size of the entrance and detector slits and optimizing the operation conditions of the lens voltage. Under the optimized conditions, ray-tracing simulations show that severe spectral intensity decreases can be avoided. An energy resolution of 6.2 meV and a resolving power of 8100 at a kinetic energy of 50 eV were experimentally obtained.

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