Kinetic Simulation of Steelmaking and Steel Refining using Thermo-Calc, by Dr Nicholas Grundy @bhadeshia123

bhadeshia123 | Kinetic Simulation of Steelmaking and Steel Refining using Thermo-Calc, by Dr Nicholas Grundy @bhadeshia123 | Uploaded July 2021 | Updated October 2024, 7 hours ago.
A talk by Dr Nicholas Grundy of Thermo-Calc Software AB, as a part of the "Modern Steel Development and Modelling" meeting, 2021. Video recording courtesy of Dipl.-Ing. Dr. Ludovic SAMEK, Professor of Metals Science, of the University of Applied Sciences in Upper Austria. The link to the meeting web site is:
https://www.fh-ooe.at/campus-wels/msdm2021/

This talk is about understanding the steel making and steel refining
process using Thermo-Calc and the CALPHAD Database TCOX9. This database contains 25 elements, 260 binaries, 244 ternaries, 118 pseudo-ternary MeO-MeO-MeO, 32 Me-O-F, Me-O-S, many higher order systems and validation in multicomponent space. Can be used, for example, for heat balance calculations, permitting the estimation of the energy required to heat and melt.

$Atomic mechanism of acicular ferrite transformation in steels Non-metallic inclusions are anathema when it comes to the design of strong steels because they become the initiation sites for fracture. Huge efforts have been made devoted to making clean steels - the oxygen concentration of a hard bearing steel is routinely less than 10 ppm. However, there are other structural steels that have to be welded where the localised heat input generates microstructures in the heat-affected zone that are undesirable. The alloys that are used to deposit the weld must have good properties in the as-cast state. In both of these circumstances, specific non-metallic inclusions are a positive boon in that they provide substrates for the intragranular nucleation of bainite. As a consequence, highly organised sheaves of bainite are altered into a more chaotic arrangement that frequently deflects propagating cracks and hence enhances the toughness. This is the so-called acicular ferrite that is the subject of this lecture.$

Some steels research at the Universidad Federal Fluminense, Brazil

Crystallography, martensitic transformation. Lecture 9 of 9

Multi-metal additive manufacturing: in-situ alloying, composition control and species mixing

Transformations during welding of HSLA steels

$Chemical potential - a simple explanation The meaning of chemical potential is explained in the context of the thermodynamics of solutions. For more details see: https://www.phase-trans.msm.cam.ac.uk/teaching.html The partial differential with respect to mole fraction of A while keeping that of B constant should really be in terms of the number of moles of A while keeping those of B constant.$

Steels: design of bainitic steels. Lecture 4 of 12