the unique properties of air-cooled bainitic steels have been described. a series of mn containing air-cooled bainitic steels invented by authors is presented in this paper: including low carbon granular bainitic steels, low carbon grain-boundary allotriomorphic ferrite/granular bainite duplex steels, medium and medium high carbon bainite/martensite duplex steel, and low carbon carbide free bai...

Microscopic stress and strain partitioning control the mechanical damage behavior of multiphase steels. Using a combined numerical experimental approach, local distributions deformation localization are characterized in carbide free bainitic steel produced by continuous cooling. The microstructure consists bainite (aggregate ferrite thin film retained austenite), martensite blocky austenite. Nu...

This laboratory study aimed to reveal the inner connects between microstructure and corrosion properties of a RE microalloyed ultra-thin cast strip (UCS) steel. The mainly consisted homogeneous polygonal ferrite (PF) with small amount pearlite (P), while adding multiple alloying elements led appearance granular bainite (GB) bainitic (BF). strongly promoted homogenization refinement by segregati...

In the paper fundamentals of steel parts quench process in liquid media are considered which used for designing new technologies such as intensive quenching that results obtaining fine and nano – bainitic microstructure. These include French law transient nucleate boiling establishing during media, duration, when film is absent, self regulated thermal process. Based on listed fundamentals, vers...

There are two well-known phenomena associated with the bainite reaction, both of which have been exploited here to enhance the mechanical behaviour of steel. Firstly, the bainite plate size decreases as the transformation temperature is reduced. Secondly, it is bad to have large regions of untransformed austenite in the microstructure; this is because they can transform, under the influence of ...

Terms of service of the steels with retained austenite in the microstructure, is severely depended on the stability of austenite during the course of deformation. The present work aims to evaluate the mechanical stability of austenite in nanostructured, carbide free bainitic steels during tensile testing and cold rolling process. To achieve the microstructure with retained austenite, the steel ...