... shown to aid visual identification of the mesoscale dislocation structure. Specific features of the dislocated state can be highlighted based on their orientation, similar to TEM bright and dark field images. High-resolution bulk microscopy techniques have been employed to increase the resolution...

... in the subsequent cyclic loading. Under asymmetric cyclic loading with a mean stress, the cyclic plastic deformation was accompanied by noticeable inhomogeneous ratcheting deformation. TEM was used to analyze the distribution and evolution of the dislocation structures at different locations of the specimen...

... steel forming processes softening texture work hardening plastic deformation X-ray diffraction rolling simulation dislocation structure Sheet metal forming of low carbon steels is of considerable applied importance. Accurate prediction of Forming Limit Diagrams (FLDs) involves 1...

... manuscript received March 6, 2002. Guest Editors: Tariq A. Khraishi and Hussein M. Zbib. 10 December 2001 06 March 2002 10 06 2002 aluminium dislocation interactions dislocation structure transmission electron microscopy slip plastic deformation The evolution...

...Mohammed Cherkaoui, Professor; La´szlo´ S. To´th, Professor micromechanics plasticity dislocation motion twinning internal stresses inclusions elastoplasticity viscoplasticity grain size martensitic transformations dislocation structure crystal microstructure grain boundaries...

... , I. , 1986 , “ Dislocation structure and work hardening in polycrystalline OFHC copper rods deformed by torsion and extension ,” Acta Metall. , 34 , pp. 1257 – 1267 . Unga´r , T. , Groma , I. , and Wilkens , M. , 1989 , “ Asymmetric X-ray line broadening of plastically...

... by the Materials Division February 20, 2001; revised manuscript received May 21, 2001. Guest Editors: Mohammed Cherkaoui and La´slo´ S. To´th. 20 February 2001 21 May 2001 dislocation structure plastic deformation X-ray diffraction crystallites Fourier transforms edge dislocations...

... Division October 10, 2000; revised manuscript received May 10, 2001. Guest Editors: Mohammed Cherkaoui and La´slo´ S. To´th. 10 October 2000 10 May 2001 copper X-ray diffraction dislocation structure compressibility shear deformation torsion plastic deformation texture...

... fracture mechanics alloys continuum mechanics voids (solid) grain growth dislocation structure The requirement for high temperature power plant to operate efficiently and safely for very long periods (up to 30 to 40 years), often in conditions of variable loading, places extreme demands...

... composite material interfaces dislocation loops work hardening crystal microstructure plastic deformation thermodynamic properties dislocation structure dislocation interactions Physical mechanisms and specific lamellar structure of some alloys like pearlite constitute a fundamental basis...

...Xiao Lin Macroscopic response and microscopic dislocation structures of Zr-4 subjected to biaxial fatigue under different phase angles of 30°, 60°, 90° and different equivalent strain ranges of 0.8%, 0.6%, 0.4% were studied. The testing results show that the delay angle between the stress deviators...