Abstract The present work investigates the resistance of a progressively cold-drawn carbon steel wire against hydrogen embrittlement. In this study, analytical and numerical methods are used to determine critical content, ratio embrittlement indices different material conditions. with highest degree cold deformation shows content improved At higher degrees deformation, stronger trapping, which ...

The effect of ferrite-pearlite and ferrite-martensite phase combinations on the passive layer properties low carbon steel is investigated in a 0.1 M NaOH solution. Heat treatments were designed to obtain microstructures with similar ferrite volume fractions. Potentiostatic polarisation electrochemical impedance spectroscopy (EIS) results demonstrated lower barrier films microstructure compared ...

The results of structural and tribological studies steels alloys pearlite, martensitic austenitic classes using dif-ferent types pretreatment nitriding modes are presented. tests metallophysical made it possible to evaluate the effectiveness each used treatment methods identify characteristics state nitrided layer, contributing an increase in operational properties friction wear conditions. A c...

In the present work, three heats of Si-Mo-Cr ductile cast iron with varying amounts major alloying elements are produced. The effect microstructural features on microhardness, tensile strength and ductility is studied. Increasing nodule count decreases pearlite-ferrite ratio, which results in a decrease but an increase percentage elongation. spherical plays significant role arresting crack reor...