The high strength of martensitic steel can be attributed to its fine hierarchical structure and
high dislocation density. To further improve the mechanical properties of low-carbon …

Martensitic transformation significantly increases the strength of low-carbon steels, while it is
usually at expense of the formability and ductility. In order to further improve the mechanical …

A novel strategy through controlling the selection of martensitic variant in metallic materials
is proposed to break through the trade-off between strength and ductility. Here we prepared …

High-carbon martensite steels (with C> 0.5 wt.%) are very hard but at the same time as brittle
as glass in as-quenched or low-temperature-tempered state. Such extreme brittleness …

To obtain ultra-high strength with guaranteed ductility, stable nanolamellar austenite packed
with high densities of dislocations and nanotwins is inserted into nanolamellar martensite …

Ultra-high strength steels are the crucial irreplaceable materials in the fields of aerospace,
national defense and military industries. Unfortunately, it is challenging to achieve the …

Medium Mn steels are the primary candidates in the fields of automobile, construction
machinery et al. due to the advantages of high strength-ductility combination, and low costs …

This study investigated the role of retained austenite (γ) in improving the mechanical
properties of 1.5 GPa-grade ultra-high strength (UHS) martensitic steels from in situ neutron …

The strength-ductility trade-off in steel, especially high-carbon steel, has been a long-
standing and troubling issue; steel with increased mechanical properties has attracted much …

Advanced die manufacture demands hot work die steels with superior strength.
Unfortunately, due to the rare understanding of the crystallographic structures and …