In this study the synthesis of molybdenum oxide nano-whiskers with circular cross-section is performed. In some areas, it was observed that also some whiskers have open tips exhibiting their hollow structures. These whiskers have side dimensions ranging 2-5 μm with an average diameter in the nanometer rang. The structure suggested the vapor-liquid-solid growth mechanism (VLS). Scanning elect...

This work aims to study the effect of cold forming on texture evolution during manufacturing rectangular hollow sections. Conventional TMCP steel and a direct-quenched in 420 MPa strength level are compared. The was characterized at centerline (S=0) both surfaces (S=0.8) for base material, four flat side one corner samples section. results show that sides steels have minor intensity ∼{554}<225>...

Abstract The calculation of the loadbearing capacity hollow section joints using design formulas according to EN 1993‐1‐8 assumes full‐strength welded connections if non‐linear stress distribution over circumference is not covered by calculation. Sufficient ductility in ensures a plastic redistribution within each joint. In case structures made high‐strength steels, it becomes more difficult me...