Processes of severe plastic deformation (SPD) are defined as metal forming processes in
which a very large plastic strain is imposed on a bulk process in order to make an ultra-fine …

Ultrafine grained steels with grain sizes below about 1 μm offer the prospect of high strength
and high toughness with traditional steel compositions. These materials are currently the …

The advantages of combining phase transformation and plastic deformation for fabricating
nanostructured metals in bulky dimensions are summarized and discussed, using steels as …

In order to investigate the effect of multi-axial forging on microstructural evolution and
mechanical properties, warm multi-axial forging (MAF) on stainless steel 316L is performed …

The deformation of tempered martensitic structures, namely tempforming treatments, were
applied to a 0.6 C–2Si–1Cr steel at 500, 600 and 700 C using multi-pass caliber-rolling with …

Ductile-to-brittle transition (DBT) temperature and brittle fracture stress, σF, are important
toughness criteria for structural materials. In this paper, low-carbon steels with an ultrafine …

Abstract A 0.4 pct C-2 pct Si-1 pct Cr-1 pct Mo steel was quenched and tempered at 773 K
(500° C) and deformed by multi-pass caliber rolling (ie., warm tempforming). The …

Plain carbon steels with different ultrafine or fine-grained ferrite matrix (α)+ cementite particle
(θ) structures were formed through thermo-mechanical processes. Scanning electron …

We attempted to improve the strength–ductility balance of tempered martensite steel by
controlling cementite particle size distribution. Four types of samples of varying tempering …

The effect of microstructural refinement and the β phase fraction, V β, on the mechanical
properties at cryogenic temperatures (up to 20 K) of two commercially important aerospace …