The present paper investigates the uniaxial compression behavior of highly alloyed, focused ion beam (FIB) manufactured micropillars, ranging from 200 up to 4000 nm in diameter. The material used was the Ni‐based oxide‐dispersion strengthened (ODS) alloy Inconel MA6000. Stress–strain curves show a change in slip behavior comparable to those observed in pure fcc metals. Contrary to pure Ni pillar experiments, high critical resolved shear stress (CRSS) values were found independent of pillar diameter. This suggests that the deformation behavior is primarily controlled by the internal obstacle spacing, overwhelming any pillar‐size‐dependent mechanisms such as dislocation source action or starvation.

Nanostructured tungsten thin films have been obtained by ion beam sputtering technique stopping periodically the growing. The total thickness was maintained constant while nanostructure control was obtained using different stopping periods in order to induce film stratification. The effect of tungsten sublayers' thicknesses on film composition, residual stresses, and crystalline texture evolution has been established. Our study reveals that tungsten crystallizes in both stable aand metastable b-phases and that volume proportions evolve with deposited sublayers' thicknesses. a-W phase shows original fiber texture development with two major preferential crystallographic orientations, namely, a-Wh110i and unexpectedly a-Wh111i texture components. The partial pressure of oxygen and presence of carbon have been identified as critical parameters for the growth of metastable b-W phase. Moreover, the texture development of a-W phase with two texture components is shown to be the result of a competition between crystallographic planes energy minimization and crystallographic orientation channeling effect maximization. Controlled grain size can be achieved for the a-W phase structure over 3 nm stratification step. Below, the b-W phase structure becomes predominant. V C 2013 AIP Publishing LLC. [http://dx.