High strength-superplasticity combination of ultrafine-grained ferritic steel: The significant role of nanoscale carbides

There is currently a gap in our understanding of mechanisms that contribute to high strength and high plasticity in high strength UFG ferritic steel with nano-size Fe3C carbides in situations that involve combination of various strain rates and high temperature. In this regard, we describe the mechanistic basis of obtaining high strength-high plasticity combination in an ultrafine-grained (UFG) (∼500 ± 30 nm) ferritic steel with nano-size...