The paper presents conclusions drawn from studies related to old steel structures, especially those erected on the turn of the 19th century. The objects of interest of the authors were Wroclaw Pomorskie Bridges: the Central ...

The paper presents a review of the multiaxial fatigue criteria including a ratio of normal and shear stresses. The paper also contains fatigue characteristics for bending and torsion of some selected constructional materials. ...

The present work investigates the effect of polyimide and poly(amic acid) content on the properties of epoxy resin. Charpy impact strength increased by 80% and 70% with the addition of 10 wt.% poly(amic acid) and 15 wt.% ...

Fatigue properties of the specimens with different notches made of FeP04 steel are presented. The specimens ware characterized by double symmetric lateral notches with a notch root radius ranging from ρ = 0.2 to 10 mm. The ...

The paper contains the results of tests on the fatigue crack growth in Ti–6Al–4V titanium alloy. Plane specimens of 4 mm in thickness with a unilateral notch were used. An analysis of crack growth was carried out for ...

Zn–Ni coatings were deposited under galvanostatic conditions at current density in the range of 20 to 60 mA⋅cm⁻². The influence of current density of deposition on the surface morphology, chemical and phase composition and ...

Six alloys reinforced by TaC carbides based on iron (ferritic) or both iron and nickel (austenitic) were studied in thermal expansion between 100 and 1200°C for two microstructure orientations. The heating, isothermal and ...

Аналізом електрохімічних процесів в умовах вібраційної кавітації виявлено можливість виділення водню і, відповідно, наводнювання металічної поверхні та її окрихчення. Зміна знака імпульсів пов’язана з особливостями ...