Flow induced mineral alignment in the Earth s mantle affects the nature of seismic wave propagation. Since measurements of seismic travel-time and shear wave splitting are a key means by which the structure of the upper mantle can be imaged, it is important to understand the factors that contribute to variability in elastic properties. Seismic anisotropy associated with lattice preferred orient...

The five-parameter grain boundary analysis has been applied for the first time to a titanium alloy. The boundary distribution was related to the b-to-a phase transformation and to deformation twinning. There was a very strong planes texture, only partially related to twinning, which did not diminish during long-duration, low-temperature annealing. 2007 Acta Materialia Inc. Published by Elsevier...

The effect of strain path changes on the microstructure/crystallographic texture characteristics was studied in a 22Cr-6Ni-3Mo duplex stainless steel subjected to several deformation regimes comprising forward and reverse torsion, performed at a temperature of 1000 °C using a strain rate of 1 s. A high-resolution EBSD technique, utilising an FEI Sirion FEG SEM in conjunction with a HKL Technolo...

A color image with an associated normal stored for each pixel is a useful datatype. It improves on images since geometry information is also present while at the same time it avoids all the complexity present in a 3D mesh. In this report, we investigate editing these enhanced images. Local shape deformation operators are presented. Global operators are developed using texture synthesis methods....

The current understanding of the fundamentals of recrystallization is summarized. This includes understanding the as-deformed state. Several aspects of recrystallization are described: nucleation and growth, the development of misorientation during deformation, continuous, dynamic, and geometric dynamic recrystallization, particle effects, and texture. This article is authored by the leading ex...

The hot deformation characteristics of AZ31 magnesium alloy rod extruded at temperatures of 300 °C, 350 °C and 450 °C have been studied in compression. The extruded material had a fiber texture with > < 0 1 10 parallel to the extrusion axis. When extruded at 450 °C, the texture was less intense and the > < 0 1 10 direction moved away from the extrusion axis. The processing maps for the material...

Ultra high molecular weight polyethylene (PE) is a structural polymer widely used in biomedical implants. The mechanical properties of PE can be improved either by controlled crystalline orientation (texture) or by the addition of reinforcing agents. However, the combinatorial effect has not received much attention. The objective of this study was to characterize the structure and mechanical pr...

The evolution of the crystallographic texture in lowcarbon steels from a deformed state to a full recrystallization (RX) state upon annealing is an issue with both academic and practical importance.1–4) Normally, the dominant components in the cold-rolled (CR) texture, {hkl}<110> , vanish after RX. Conversely, the RX texture, consisting of varying intensities of {001}, {111} and {011}...

Haiqing Xianyu Kuan-Ming Chen Shin-Tson Wu Abstract — An electrically controllable blueshift of the reflection band is observed in a cholesteric liquid crystal with either positive or negative dielectric anisotropy. The change in optical properties is a result of a two-dimensional periodic undulation of the cholesteric texture, known as Helfrich deformation. This blueshift mechanism was used to...