This article introduces the microstructural and mechanical properties of low medium-carbon advanced martensitic steels (AMSs) subjected to heat-treatment, hot- warm- working, and/or case-hardening processes. The AMSs developed for sheet wire rod products have a tensile strength higher than 1.5 GPa, good cold-formability, superior toughness fatigue strength, delayed fracture due mixture martensi...

Low-carbon advanced nanostructured steels have been developed for various structural engineering applications, including bridges, automobiles, and other strength-critical applications such as the reactor pressure vessels in nuclear power stations. The mechanical performances of these are strongly dependent on their microstructural features. By controlling size, number density, distribution, typ...

On the basis of experimental studies, approximate contribution various hardening mechanisms to yield point low-carbon and low-alloy steels is estimated. It has been established that for hot-rolled (St.3sp St5ps), solid-solution grain-boundary (54.0% 29.0, %) make greatest point. The predominant strengthening mechanism steel 10HNDP solid solution, a high proportion which in this explained by res...