A finite element microstructure model with permeability tensors that considers crystallographic texture and grain size based on magnetic domain theory has been developed for the evaluation of anisotropy in polycrystalline steels. The proved capable capturing texture, vector induction effects effective behaviours typical textures predicted properties as a function field direction enables quantit...

Linear Polarisation Resistance (LPR) can provide a direct evaluation of the instantaneous rate of corrosion. However it has the disadvantage of requiring a localised breakout of the concrete cover to provide an electrical connection to the steel reinforcement. This paper describes an adaptation of the LPR method and the four-point Wenner resistivity method to give an evaluation of the rate of s...

We report electrically controlled membranes which become permeable when an electrical field is exerted on a droplet deposited on the membrane. Micro-porous polycarbonate membranes are obtained with the breath-figures assembly technique, using micro-scaled stainless steel gauzes as supports. The membranes demonstrate pronounced Cassie-Baxter wetting. Air cushions trapped by the droplet prevent w...

In this study, two parameters of surface roughness and volumetric material removal rate are optimized based on computational intelligence method. Wire electrical discharge machine is used for machining of cold-work steel 2601. The relation between Input parameters including electrical current, pulse-off time, open-circuit voltage and gap voltage and output parameters is studied via Experimental...

Silicon steel is a widely used soft magnetic material that requires different texture components for applications, typically classified as grain-oriented or non-oriented. However, the methods of fabricating such types silicon via laser-powder bed fusion (LPBF) have not been fully investigated. In this study, near and non-oriented Fe-3.5 wt.%Si fabricated using LPBF by controlling processing par...

The performance and degree of efficiency of transformers are directly determined by the bulk magnetic properties of grain oriented electrical steel laminations. The core losses can be improved by post manufacturing methods, so-called domain refinement techniques. All these methods induce mechanical or thermal stress that refines the domain structure. The most commonly used technique is laser sc...

Hysteresis phenomenon is a distinctive approach to describe the natural behavior of magnetic materials and cores. This article proposes phenomenological for core quality assessment condition monitoring cores with grain-oriented electrical steels. The developed technique based on hysteresis interpreting most parameters measured dynamic loops. In this study, artificial short circuits were introdu...

Hysteresis loops constitute the source of important information for designers magnetic circuits in power transformers. The paper focused on possibility to interpret phenomenological T(x) model terms effective field vs. magnetization dependence. interdependence anhysteretic curve and hysteresis was emphasized. concept plane introduced at end last century by Sablik Langman subject a tangible inte...