Abstract The study discusses the subject of a temperature change TWIP steels during their deformation as result conversion plastic work into heat, based on literature review and authors' own research. methods measuring or modelling changes these temperatures are presented. It also points out that heat generated has higher values than in case conventional steels, due to yield stresses limit stra...

Heterogeneous microstructures have been proposed to optimize the mechanical properties in respect of strength and ductility synergy many alloy systems. In this work, multi-phase hetero-structured microstructure consisting fine grains coarse where ferrite is embedded vicinity nano-grains was obtained by regulating thermomechanical processing parameters. A yield 1.2 GPa which more than two times ...

Fe-Mn-Al-C lightweight steels have been investigated intensely in the last a few years. There are basically four types of steels, ferritic, ferrite-based duplex/triplex (ferrite + austenite, ferrite austenite martensite), austenite-based duplex austenite), and single-austenitic. Among these generally exhibit high strength, good ductility, outstanding weight reduction effects. Due to addition Al...

The elevated temperature tensile behavior of a Nb-Mo microalloyed medium steel was investigated over the ?50 to 150 °C range. ultimate strength significantly reduced with increasing deformation temperature, but both YS (yield strength) and EI (total elongation) values changed slightly. best product UTS (ultimate (~59.5 GPa·%) can be achieved at 50 °C, implying an excellent combination ductility...