Abstract Annealing is an effective strategy to improve the properties of high-strength twin-induced plasticity (TWIP) steels, however, adaption intermediate annealing during cold rolling (CR) scarcely studied. Here, Fe-19Mn-0.6C TWIP steel was subjected CR-annealing and CR-intermediate annealing-CR-annealing processes at room temperature determine role in improvement microstructure mechanical p...

low stacking fault energy face centered cubic (fcc) materials contain characteristic defect structures. stackingfault tetrahedral are one of those rare structures that occur under special experimental conditions. for the first time,stacking fault tetrahedral were observed in fe-30mn-3al-3si twinning induced plasticity (twip) steel. theirpresence resulted from a quenching heat treatment.

Microstructural evolutions of twinning induced plasticity (TWIP) steel during tensile straining were investigated by in situ SEM observations. The results indicated that slip lines and mechanical twins as well as surface relief were increased with increasing strain, resulting in a stepped surface. Additionally, these deformation mechanisms could change the shape of each grain via shear and rota...

The effects of cerium (Ce) on the microstructure, mechanical properties and strain hardening behavior Fe-18Mn-0.6C twin-induced plasticity (TWIP) steel were investigated by electron backscatter diffraction, X-ray diffraction transmission microscopy. Compared with addition Al, Ce significantly reduced stacking fault energy TWIP steel, which promotes formation deformation annealing twins. dynamic...

Developing lighter, stronger and more ductile aerospace metallic materials is in demand for energy efficiency strategies. Alloys with twinning-induced plasticity (TWIP) and/or transformation-induced (TRIP) effects have been exploited to defeat the conflict of strength versus ductility, yet very few if any physically informed methods exist address complex interactions between transitions. Here w...

The paper describes the development of austenitic steel with TWIP effect, which is alloyed chromium to increase corrosion resistance. experimental heat this was cast in an melting furnace and subsequently subjected hot cold rolling. After rolling, appropriate recrystallization annealing temperature applied obtain optimal grain size. X-ray diffraction proved that contains a fully structure. anne...