The effect of the initial microstructure and intercritical annealing on mechanical properties and work-hardening response of a high-formability low carbon steel were studied. The work-hardening analysis was based on the modified Crussard–Jaoul method. The ferritic-pearlitic sheets showed low strength and high total elongation with the appearance of the yield point phenomenon. The occurrence of ...

Five spheroidal graphite cast irons were investigated, a usual ferritic grade and four pearlitic alloys containing Cu and doped with Sb, Sn and Ti. These alloys were remelted in a graphite crucible, leading to volatilization of the magnesium added for spheroidization and to carbon saturation of the liquid. The alloys were then cooled down and maintained at a temperature above the eutectic tempe...

In this study, six flexible pipe steel armor wires used in oil and gas transportation are characterized, their hydrogen diffusion coefficients uptakes measured using an electrochemical permeation technique. The have ferritic–pearlitic microstructures with round, lamellar, or partially lamellar carbides the shape orientation of grains indicate that were plastically deformed to different degrees....

The influence of pro-eutectoid cementite on fatigue crack growth behavior was investigated using various pearlitic steels containing from 0.64 to 1.21 mass%C. rates the hypo-eutectoid and eutectoid hardly changed, while that mass%C steel having a large amount (θ) accelerated especially in high stress intensity factor region. Scanning electron microscope (SEM) observation revealed fracture surfa...