Weight reduction from down-gauged high-strength steels has been an important issue in
automotive industries to improve fuel efficiency. In addition to lightweight needs, automotive …

The need for lightweight materials has been an important issue in automotive industries to
reduce greenhouse gas emission and to improve fuel efficiency. In addition, automotive …

Ferrite+ austenite duplex lightweight steels have been actively developed by adding low-
density Al for overcoming a limitation of stiffness deterioration by a traditional approach to …

An ultrafine grained (UFG) ferrite/cementite microstructure was produced by use of large
strain warm deformation in two plain C–Mn steels. In order to overcome the characteristic …

High strength and ductility and vehicle's weight reduction are key issues for improving fuel
efficiency in automotive industries. In addition, structural reinforcement components require …

The room temperature deformation characteristics of a duplex Fe–20Mn–9Al–0.6 C steel
with the reduced specific weight of 6.84 g/cm 3 in the fully solutionized state were described …

High-and medium-Mn (H/M-Mn) base lightweight steels are a class of ultrastrong structural
materials with high ductility compared to their low-Mn counterparts with low strength and …

The method of Si substituting for Al was proposed to design a novel hot-rolled lightweight
steel with ultra-high ultimate tensile strength (2046 MPa) and good total elongation after …

Increasing the yield strength of austenitic steel without significantly sacrificing ductility has
been a long-standing technical challenge. Here, we obtained an ultrahigh yield strength (∼ …

Dual phase (DP) steels were produced by a new approach utilizing simple cold-rolling and
subsequent intercritical annealing of a ferrite–martensite duplex starting structure. The …