Texture and microstructure of high purity tantalum

Texture and Microstructure Analysis with High-energy Synchrotron Radiation

Diffraction of high-energy synchrotron radiation with wavelengths in the range of 0.1Ǻ, provided by the beamline BW5 at HASYLAB in Hamburg, was used to measure textures (orientation distribution) and microstructures (spatial distribution) of the crystallites in various polycrystalline materials. In order to achieve extremely high angularcombined with very high lateral resolution a continuous sw...

Cyclic deformation behavior of high-purity titanium single crystals: Part II. Microstructure and mechanism

the relationship between academic self-concept and academic achievement in english and general subjects of the students of high school

according to research, academic self-concept and academic achievement are mutually interdependent. in the present study, the aim was to determine the relationship between the academic self-concept and the academic achievement of students in english as a foreign language and general subjects. the participants were 320 students studying in 4th grade of high school in three cities of noor, nowshah...

3D reconstruction of microstructure in a commercial purity aluminum

The topic of reconstruction of polycrystalline microstructures is briefly reviewed. An example is given of using orientation maps to reconstruct digital microstructures with a representation of a polycrystal structure that includes crystallographic orientation information. The method uses packing of ellipsoids to approximate the grain structure, coupled with Voronoi tessellation. For the exampl...

Microstructure Evolution in High Purity Aluminum Single Crystal Processed by Equal Channel Angular Pressing (ECAP)

Aluminum single crystal with 99.999% purity was deformed at room temperature by equal channel angular pressing (ECAP) up to 16 passes. Grain size and misorientation of processed samples were quantitatively characterized by TEM and EBSD. The results show that the refinement efficiency of high purity aluminum single crystal was poor in the initial stage. Extrusion by fewer ECAP passes (n ≤ 8) res...