نتایج جستجو برای: electron probe microanalysis epma
تعداد نتایج: 393918 فیلتر نتایج به سال:
EA4T steel has been widely used in the manufacture of railway axles. Laser cladding remanufacturing technology to repair axles, and failure behaviors axles studied. In this work, a class original FeCrNiMo alloy layers that contain rare-earth elements was successfully fabricated through laser technique on substrates. The microstructure elemental distribution were analyzed scanning electron micro...
The evolution of microstructure and formation mechanism incipient melting DD5 single crystal superalloy during solution heat treatment were studied by scanning electron microscopy (SEM), probe microanalysis (EPMA), energy dispersive spectroscopy (EDS). solidus liquidus alloy obtained differential calorimetry (DSC). Results show that the mosaic-like eutectic fan-like are dissolved at first, coar...
Central axis depth dose measurements were made by the Radiological Physics Center on over 70 electron-producing machines used in radiation therapy. These data were consistent for each machine model and nominal energy. However, the data show that depth dose relations can vary significantly among different machine models for electron beams having the same nominal energy. Analysis shows that both ...
In this study, a post-weld heat treatment (PWHT) was proposed at high temperatures of 600 °C, 750 and 900 °C for 30 min to significantly improve the impact absorbed energy manganese steel weld metal. Electron backscatter diffraction (EBSD), electron probe microanalysis (EPMA), high-angle annular dark field scanning transmission microscopy (HAADF-STEM) were employed characterize production study...
The impact of electron probe microanalysis on the study of geological and planetary materials has been tremendous. Electron microprobes evolved into routine analytical instruments in geological research laboratories as instrument capabilities improved and applications to geologic/planetary materials expanded. The contributions of electron probe microanalysis to the characterization of minerals,...
The article describes the effect of fluxing ability (FA) ores used as a flux on slag formation and copper losses. In Kazakhstan, at Balkhash smelting plant (BCSP), currently fluxes have very low SiO2 content—about 62%—whereas Al2O3 content is 12%. Its was estimated, it shown that silica an exceedingly FA. Only half participate in formation. To obtain slags with magnetite concentration, consider...
The paper presents possibilities and difficulties in nondestructive analysis of small multielement single crystals performed by means of X-ray spectrometry techniques: micro-X-ray fluorescence spectrometry (μ-XRF), energy-dispersive electron probe microanalysis (ED-EPMA), and X-ray photoelectron spectroscopy (XPS). The capability of the X-ray spectroscopy techniques in elemental analysis is dem...
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