The control of non-metallic inclusions is an important tool for steel properties optimization. Most related actions of this control involve the prevision of the slag-metal and inclusion-metal equilibrium, aiming at implementation of operational practices to obtain a more adequate inclusion profile.
Computational thermodynamics has proved to be a powerful tool in the prevision of equilibrium in different metallurgical systems, especially in the metal-oxide system in question. The aim of this work is to present the application of computational thermodynamics in the study of formation and control of non-metallic inclusions in steels, mainly during secondary refining. This work shows that the careful application of computational thermodynamics can drastically reduce the empirics in the process development for the control of non-metallic inclusions in steels, contributing to an increase in the efficiency of the process manufacture, to improve the present product quality and to enable the economic development of new products.

news in steel

New material for generators: thyssenkrupp Schulte supplies material for innovative aluminum fan blades

thyssenkrupp Schulte, a company of thyssenkrupp's Materials Services business unit, has collaborated with Siemens to develop new fan blades made from a special aluminum alloy. The innovative material is used among other things in generator cooling fans.

JSW orders high-speed billet caster from SMS Concast

JSW Steel Ltd. in Toranagallu, India, belonging to Jindal Group, has awarded SMS Concast, a company of SMS group (www.sms-group.com), an order covering a 5(6)-strand high-speed billet caster. This project is part of a bigger expansion plan, and the main objective is a productivity increase.

ArcelorMittal Bremen will upgrade its hot strip mill with the aid of SMS group

ArcelorMittal Bremen, Germany, has contracted SMS group (www.sms-group.com) to modernize its hot strip mill with the objective of improving hot strip tolerances.

BinNova licenses technology to produce ultra-thin metal fibers with unique material properties

The BinNova Metal Fiber Technology GmbH company has licensed a technology from the Max Planck Institute for Medical Research, which makes it possible to produce micro-metal fibers that are extremely fine and, at the same time, extremely robust. Following the successful development of the research concept and a research facility by the Max Planck Institute for Medical Research, the company will now begin developing a production facility and will very soon commence distribution of the innovative metal fibers and non-wovens.