High-strength low alloy steels (HSLA) have been designed to replace high-yield (HY) strength steels in naval applications involving impact loading as the latter, which contain more carbon, require complicated welding processes. The critical role of HSLA-100 steel requires achieving an accurate understanding of its behavior under dynamic loading. Accordingly, in this paper, we experimentally inv...

The impact of microstructure evolution on mechanical properties in superduplex stainless steel UNS S32750 (EN 1.4410) was investigated. To this end, different thermomechanical treatments were carried out order to obtain clearly distinct duplex microstructures. Optical microscopy and scanning electron microscopy, together with texture measurements, used characterize the morphology preferred orie...

The current study applied thermomechanical processing (TMP) on 301 austenitic stainless steel to produce an ultrafine-grained structure, examining the dual effects of deformation at subzero temperature and TMP cycles strain-induced α′-martensitic transformation austenite reversion occurring upon subsequent annealing. Three schemes were adopted: (1) one cycle using a strain 0.30, (2) two 0.20, (...

the critical temperatures of a thermomechanical process have a great importance for the final microstructure and mechanical properties of high strength low alloy steels. in this study, the average scheduling was used to determine the critical temperatures of api x70 steel. this steel is extensively used in iran for large diameter, high-pressure gas transportation pipelines as well as the oil tr...