modern vehicle bodies make intensive use of high strength steel grades to meet the contradicting demand of lighter weight and simultaneously better mechanical performance. for many steel grades microalloying by niobium is the key to achieve their characteristic property profile. in hsla steels niobium enhances the strength primarily by grain refinement. in interstitial free high strength steels...

The influence of Cu on the corrosion performance low-alloy Cu-bearing pre-hardened plastic mold steel was investigated and compared with non-Cu-bearing using transmission electron microscopy (TEM), scanning (SEM), X-ray diffraction (XRD), salt-spray tests electrochemical impedance spectroscopy (EIS). results reveal that formed rust layer is composed α-FeOOH, β-FeOOH, γ-FeOOH, Fe3O4 large amount...

S. Bulatović, Yugoslav River Shipping, Serbia, Z. Burzić, Military Technical Institute, Serbia, V. Aleksić, Institute for Testing Materials, Serbia, A. Sedmak, University of Belgrade, Faculty of Mechanical Engineering, Serbia, Lj. Milović, University of Belgrade, Faculty of Technology and Metallurgy, Serbia High strength low-alloy steel under low cycle fatigue at a certain level of strain contr...

In this work, a functionally graded material (FGM) part was fabricated by depositing Cu-based alloy on top of high strength low (HSLA) steel twin-wire and arc additive manufacturing (T-WAAM). Copper parts are interest in many industries since they can combine thermal/electrical conductivity, wear resistance with excellent mechanical properties. However, mixing copper is difficult due to mismatc...