One of the key goals in the development of steels has been to refine the ferrite grain size, as
this leads to an increase in both strength and toughness. The optimum reduction in ferrite …

The attainment of ultrafine ferrite grain structures in low carbon, low alloy steels is of interest
because of the improvement in yield strength and Charpy impact transition temperature …

ABSTRACT A new thermomechanical process has been developed to produce ultrafine
(lurn) equiaxed ferrite grains in hot rolled steel strip. This process is remarkably simple and …

The designing of processing routes that minimise the final ferrite grain size is essential for
the development of high strength steels with improved toughness and ductility …

Ultrafine ferrite, with an average grain size of approximately 1 μm, has been produced using
laboratory hot torsion tests. The tests utilized controlled hot deformation and cooling, with the …

An investigation into the production of ultrafine (1 µm) equiaxed ferrite (UFF) grains in low-
carbon steel was made using laboratory rolling, compression dilatometry, and hot torsion …

Athermomechanical process has been developed to produce ultrafine(1-2, Im) ferrite grains
in hot rolled steel strip. This process involves rolling the steel at or just above the austeniteto …

A novel approach was used to produce an ultrafine grain structure in low carbon steels with
a wide range of hardenability. This included warm deformation of supercooled austenite …

Recently, the grain refinement of metallic materials has been investigated intensively. There
are two basic methods, ie, severe plastic deformation and thermomechanical processing, to …

A novel single-pass hot strip rolling process has been developed in which ultra-fine (< 2 μm)
ferrite grains form at the surface of hot rolled strip in two low carbon steels with average …