Topic
Electron backscatter diffraction
About: Electron backscatter diffraction is a research topic. Over the lifetime, 15184 publications have been published within this topic receiving 317847 citations. The topic is also known as: EBSD.
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TL;DR: In this article, the tensile properties of a bulk material produced by a combination of mechanical alloying (MA) and spark plasma sintering (SPS) were characterized for the first time, and the structure of the sample consisted of single-phase FCC high entropy solid solution of extremely fine-twinned grains and oxide inclusions inherited from the original powder feedstock.
84 citations
01 Dec 2000-Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science
TL;DR: In this article, the thermal field and the grain structure of a cored superalloy turbine blade, which has been directionally solidified with the liquid metal cooling (LMC) process, has been simulated in three dimensions using a cellular automaton coupled with finite-element (CAFE) model.
Abstract: The thermal field and the grain structure of a cored superalloy turbine blade, which has been directionally solidified with the liquid metal cooling (LMC) process, has been simulated in three dimensions using a cellular automaton (CA) coupled with finite-element (CAFE) model. The cooling induced by the liquid aluminum bath has been replaced by a heat-transfer coefficient, whose temperature- and time-dependence has been adjusted on the basis of natural convection simulations and dimensionless analyses. The simulated grain structure and crystallographic texture have been compared with the microstructure, and the electron back-scattered diffraction (EBSD) results were obtained for a real blade. In both the experiment and the simulation, it has been found that the grains do not exhibit a well-defined texture, even near the top of the blade, mainly as a result of a concave liquidus surface. In order to improve the texture and decrease the number of stray crystals, the LMC process was then optimized by changing several parameters. The baffle geometry, the liquid bath level, and the thermal conductivity of the ceramic mold were found to be the dominant parameters. Using the optimized design, the effect of the withdrawal rate on the resulting grain structure was investigated.
84 citations
TL;DR: In this paper, a ternary Mg-Zn-Ca alloy and its modification with zirconium was used to reveal the microstructure and texture development. But the texture of the as-rolled sheets can be characterised by basal pole figures with split peak towards the rolling direction and a broad transverse angular spread of basal planes towards the transverse direction.
84 citations
TL;DR: In this paper, the hardness and toughness were considered as main parameters for improvement of the protective properties of multilayers with varying bilayer periods, ranging from 40nm to 2.2μm, using cathodic arc physical vapour deposition (Arc-PVD) on stainless steel substrate.
84 citations
TL;DR: In this article, a critical comparison of the transmission electron microscopy (TEM) and electron backscattered diffraction (EBSD) based techniques and TEM observations of boundary planes in grains of selected orientations in cold-rolled aluminium is presented.
84 citations