Al–Si alloys Equal channel angular processing

This article surveys deformable models, a promising and vigorously researched computer-assisted medical image analysis technique. Among model-based techniques, deformable models offer a unique and powerful approach to image analysis that combines geometry, physics, and approximation theory

Nacre (mother-of-pearl) from mollusc shells is a biologically formed lamellar ceramic. The inelastic deformation of this material has been experimentally examined, with a focus on understanding the underlying mechanisms. Slip along the lamellae tablet interface has been ascertained by testing

As depth increases, pressure and temperature increase as well. Rate-dependent (creep, crytal-plastic, viscous) processes favored. Pressure dependent (brittle, frictional, dilatant) processes de-emphasized. The lower four mechanisms involve the production, motion, and consumption of crystal defects

Quartzo-feldspathic granulites are probably the most intensely studied deep-seated rocks with respect to quartz textures. Few microfabric studies explain crystallographic preferred orienta-tion (CPO) of plagioclase as a result of dislocation motion on the (010)[001] and (010)[100] (Ji and Mainprice 1988) in gran-ulite facies conditions. Diffusion-accomodated grain boundary sliding was described from very fine-grained quartzofeldspath-ic high-grade mylonites (Behrman and Mainprice 1987). The diffusional creep is also enhanced by the presence of granitic melt (Dell’Angelo and Tullis 1988). The well equilibrated microstructure of granulite matrix is commonly interpreted by petrologists as a product of extensive solid state static annealing (Spry 1969). Emphasis is placed on the geometrical and morphological characteristics as the lack of like/like contacts between constituent minerals (Mc Lellan 1983)

mechanisms, including blurring, nonlinear deformations, and multiplicative or additive noise, the posterior distribution is an MRF with a structure akin to the image model. By the analogy, the posterior distribution defines another (imaginary) physical system. Gradual temperature reduction in the physical

To examine effects of the grain boundary (GB) and dislocation on the deformation mechanism for ultra-fine-grained (UFG) and coarse-grained (CG) interstitial-free (IF) steels at room temperature, tensile tests and several types of microscopy were conducted for each steel. Atomic force microscopy

Large wind turbine structural load control: trailing edge deformation mechanism for active variable-camber blade

ABSTRACT. A deforma tion mechanism map for pure polycrystalline ice of 2 mm grain diameter is con-structed. New sub-regions in the dislocation g lide region are proposed: disloca tion glide with crack form a tion, dislocation creep, a nd fracture at high stresses a bove about 1 MPa. The boundary

in elastic modulus and break stress, respectively, indicating significant load transfer across the nanotube-matrix interface. In situ transmission electron microscopy studies provided information regarding composite deformation mechanisms and interfacial bonding between the multiwall nanotubes and polymer