... on sheared and on extruded samples confirms that the extrusion promotes massively simple shear. Besides, the grain refinement is measured with a dedicated transmission electron microscopy (TEM) attachment. It is shown that the grain size decreases regularly for a low carbon steel as well as for copper, down...

... loading, degradation in mechanical properties may be attributed to the formation of agglomerated clay tactoids. Results of transmission electron microscopy studies and scanning electron microscopy studies of the fractured surface of tensile specimens verify these hypotheses. A sharp decrease...

... of the induced stress, the scanning electron microscopy, transmission electron microscopy, and nanoindentation techniques are used to examine the microstructure and hardness of the white layer resolidified on the EDMed surface. The experimental results reveal that combination of the hole-drilling strain-gage...

... creep elastic waves dislocation motion scanning electron microscopy transmission electron microscopy crystal microstructure ultrasonic absorption Structural metals are subject to aging from fatigue, creep, corrosion, and their combination. Exposure to elevated temperatures promotes creep...

... with the observations that were made in the optical microscope. These nearly nano-size grains are too fine to be resolved by optical microscopy. They were studied by transmission electron microscopy as discussed in the next section. 2 A piece of the painting by Van Goph titled “Starry Night” that shows wavy...

...Jixi Zhang; Yanyao Jiang An experimental study was conducted on the inhomogeneous plastic deformation of 1045 steel subjected to monotonic tension and cyclic tension-compression. Small strain gages were used to characterize the local deformation and transmission electron microscopy (TEM) was used...

... 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...

... recording of an in situ experiment using transmission electron microscopy. This film (unpublished), which was kindly made available to us by Prof. F. Louchet, represents an experiment that was performed in 1984. On the same figure the positions of several immobile dislocations (dashed lines...