Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"Electron Backscattered Diffraction (EBSD)"”.
-
Alteration mechanisms of spent nuclear fuel and characterization of potential uranium secondary phases.
… scientific techniques such as scanning electron microscopy (SEM), energy dispersive x-ray analysis (EDX), electron- backscattered diffraction (EBSD), X Ray Diffraction (XRD), Raman spectroscopy with a chapter dedicated on 17O NMR. For the latter, given the long alteration timeline for …
-
Investigation of mechanical behavior of Alloy 709 for advanced fast reactor applications
… studied using tensile tests with in-situ X-ray diffraction (XRD) at various temperatures, ranging from room temperature (RT) to 600ºC, and displacement rates, from 0.001 to 0.004 mm/s. Using these stress-strain curves, empirical models of Alloy 709’s deformation behavior over a range of …
-
Microstructure and texture development in AISI430 ferritic stainless steel
… were performed using light microscopy and Electron Backscattered Diffraction (EBSD). The microstructure analyses were performed in order to determine microstructure evolution and texture development during hot deformation and post deformation heat treatments. The difference in austenite …
-
Influence of crystallographic texture in X70 pipeline steels on toughness anisotropy and delamination
… facilitate evaluation of delamination. Scanning electron microscopy combined with electron backscattered diffraction (EBSD) were used to evaluate the grain size, microstructural constituents, and crystallographic texture to determine the factors leading to delamination and the anisotropy in …
-
Dry sliding wear of metals: From subsurface microstructure to tribological behavior
… of the bronze were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive spectroscopy (EDS). Two different types of debris particles, fine granular oxides and large flaky debris, were observed. A mechanically mixed layer, followed by …
-
Influence of grain size and niobium content on the creep resistance of ferritic stainless steels
… investigated using light microscopy, scanning electron microscopy (SEM) and electron backscattered diffraction (EBSD). The latter was particularly useful in accurately measuring grain size. The microstructural evolution of both alloys during creep testing was also monitored. This was done in …
-
The influence of prior creep damage on the fracture localisation in X20 CrMoV12-1 cross-weld creep tests
… was conducted using optical microscopy, scanning electron microscopy (SEM), coupled with more advanced electron backscattered diffraction (EBSD). Microhardness and hot tensile testing were included to characterise the mechanical degradation of the as-received material. The fracture location of the …
-
Zircon behaviour in low temperature environments
… has a low BSE intensity (dark BSE zircon) and electron microprobe measurements show an enrichment of Mg, Al, Ca, Fe, Y and a loss of Si and Zr, while Hf appears to remain relatively constant between the unmodified parent and the resulting modified phase. Dark BSE zircon forms via two main …
-
Quantification of fatigue damage in AISI 316L stainless steel using X-Ray powder diffraction (XRD)
… using a non-destructive examination Power X-ray diffraction (PXRD). In industry, the evaluation of material deformation post cycling loading is often performed using microscopic techniques such as transmission electron microscopy (TEM) and electron backscattered diffraction (EBSD). However, each …
-
The origins of olivine fabric transitions and their effects on seismic anisotropy in the upper mantle
… were analyzed for fabric development employing electron backscattered diffraction (EBSD) and microstructure was observed using transmission electron microscopy (TEM). Experiments were performed at each pressure and temperature as a function of strain rate and H2O content. In dry olivine …
-
Influence of surface hardening on single crystal nickel-based superalloys
… blade. Local misorientation (LM) analysis of electron backscattered diffraction (EBSD) data was the principal tool for characterising cold work structures produced by MSP and DCR. The development of the LM analysis methodology for single crystal superalloys and the creation of a Python script …
-
High temperature creep-fatigue behavior of alloy 617 and alloy 230
The Very High Temperature Reactor (VHTR) is one of the Gen-IV reactor design concepts which embody a common goal of providing safe, longer lasting, proliferation-resistant, and economically viable nuclear energy. One of the biggest challenges in the research and development of Gen-IV reactor …