Cold-rolled silicon steel strip products are widely used as the main soft magnetic components in cores of electrical motors, generators, and transformers. In case rotating machines, so-called non-oriented electro-technical steels normally applied. They characterized by a similar behaviour to induced field found all sheet plane directions. The kind alloys that defined herein not only possess an ...

There is significant evidence from light metals that turbulence in casting leads to bifilm defects; enfolded, doubled-over oxide films which act like cracks the liquid, and are inherited as by solid. This population of introduced now known significantly influence tensile failure behaviour alloys. analogous defects exist steels. paper examines possibility bifilms may control hot ductility TWIP T...

electrical steels are important alloys widely used in electrical instruments. the magnetic properties and low core loss of grain oriented silicon steels are closely related to the sharpness of goss texture ({110} ).the direction of is the softest direction for magnetism.  in this work, the microstructure and dependence of orientation density along the major texture fibers on the applied cold ro...

many efforts have been made to model the the hot deformation (dynamic recrystallization) flow curves of different materials. phenomenological constitutive models, physical-based constitutive models and artificial neural network (ann) models are the main methods used for this purpose. however, there is no report on the modeling of warm deformation (dynamic spheroidization) flow curves of any kin...

Several austenitic stainless steels suitable for high temperature applications because of their high corrosion resistance and excellent mechanical properties were investigated as biomaterials for dental use. The steels were evaluated by electrochemical techniques such as potentiodynamic polarization curves, cyclic polarization curves, measurements of open circuit potential, and linear polarizat...

The hot ductility of V containing high Al, TWIP steels was determined at a 1000°C, when no dynamic recrystallisation occurred, and precipitation too coarse to influence ductility. A change in g...

The aim of the present study is the prediction of critical conditions (including critical strain and flow stress) for the initiation of dynamic recrystallization during thermo-mechanical processing of plain carbon steels. For this propose, torsion tests were conducted at different temperature (1050, 1100 and 1150˚C) and strain rates (0.002, 0.02 and 0.2/s). All flow curves showed a peak st...

Hot forming is an essential part of the manufacturing most steel products. The hot deformation behaviour determined by temperature, strain rate, and chemical composition steel. To date, constitutive models are constructed for many steels; however, their specific limits application. In this paper, a novel artificial neural network (ANN) model was built to determine flow stress with high accuracy...