fatigue behavior of a vanadium microalloy steel has been studied in this research. here, microstructure constituents were considered which essentially are dependent on the heat treatment conditions. the results of high cycle fatigue tests revealed that heat treatment procedure and cooling rates have significant effects on fatigue properties. optimal heat treatment cycle of the microalloyed stee...

The influence of impurities present in steel on fatigue strength has been the subject research conducted for many years. Despite a large number studies, there is no unambiguous explanation life steel. interpretation results becomes more complicated as ductility increases. For this reason, most concerns low-ductility hard steels. In addition, studies presented literature mostly concern laborator...

Abstract The presence of retained austenite in the hardening process tool steel often causes lower hardness compared to requirements and poor dimensional stability steel. purpose present research is determine relationships between tempering with without cryogenic treatment amount as-hardened D2 austenitizing temperature was 1020 °C, temperatures have variations 180 280 380 480 580 subzero has a...

Abstract This paper presents the microstructural changes and mechanical properties of carbide-free bainitic steel subjected to various heat treatment processes compares these results with similarly treated ferritic–pearlitic steel. A key feature investigated steel, which is common among others described in literature, that Si content developed was >1 wt.% avoid carbide precipitation retained...

Abstract Dual-phase steels provide an excellent combination of strength and ductility, as well improved energy absorption anti-corrosion protection properties. This research aims at evaluating the microstructure corrosion behaviour EN8 steel under different heat treatment temperatures in 0.5 M sulphuric acid solution (H 2 SO 4 ) using EIS, potentiodynamic polarization, gravimetric method (weigh...